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  • Question 1 - A 2-year-old toddler comes in with a high-grade fever, excessive drooling, and hoarseness....

    Correct

    • A 2-year-old toddler comes in with a high-grade fever, excessive drooling, and hoarseness. The child is displaying obvious stridor and has an elevated heart rate.
      What is the initial step in managing this young patient?

      Your Answer: Call a senior anaesthetist

      Explanation:

      Acute epiglottitis is inflammation of the epiglottis, which can be life-threatening if not treated promptly. When the soft tissues surrounding the epiglottis are also affected, it is called acute supraglottitis. This condition is most commonly seen in children between the ages of 3 and 5, but it can occur at any age, with adults typically presenting in their 40s and 50s.

      In the past, Haemophilus influenzae type B was the main cause of acute epiglottitis, but with the introduction of the Hib vaccination, it has become rare in children. Streptococcus spp. is now the most common causative organism. Other potential culprits include Staphylococcus aureus, Pseudomonas spp., Moraxella catarrhalis, Mycobacterium tuberculosis, and the herpes simplex virus. In immunocompromised patients, Candida spp. and Aspergillus spp. infections can occur.

      The typical symptoms of acute epiglottitis include fever, sore throat, painful swallowing, difficulty swallowing secretions (especially in children who may drool), muffled voice, stridor, respiratory distress, rapid heartbeat, tenderness in the front of the neck over the hyoid bone, ear pain, and swollen lymph nodes in the neck. Some patients may also exhibit the tripod sign, where they lean forward on outstretched arms to relieve upper airway obstruction.

      To diagnose acute epiglottitis, fibre-optic laryngoscopy is considered the gold standard investigation. However, this procedure should only be performed by an anaesthetist in a setting prepared for intubation or tracheostomy in case of airway obstruction. Other useful tests include a lateral neck X-ray to look for the thumbprint sign, throat swabs, blood cultures, and a CT scan of the neck if an abscess is suspected.

      When dealing with a case of acute epiglottitis, it is crucial not to panic or distress the patient, especially in pediatric cases. Avoid attempting to examine the throat with a tongue depressor, as this can trigger spasm and worsen airway obstruction. Instead, keep the patient as calm as possible and immediately call a senior anaesthetist, a senior paediatrician, and an ENT surgeon. Nebulized adrenaline can be used as a temporary measure if there is critical airway obstruction.

    • This question is part of the following fields:

      • Ear, Nose & Throat
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  • Question 2 - A 22 year old presents to the emergency department with a complaint of...

    Correct

    • A 22 year old presents to the emergency department with a complaint of hematemesis that started 30 minutes ago. The patient had a tonsillectomy 7 days ago. The patient's vital signs are as follows:

      Blood pressure: 116/68 mmHg
      Pulse: 102 bpm
      Respiration rate: 15 bpm
      Temperature: 36.5ºC

      During examination, fresh clotted blood is visible in the right tonsillar fossa and there is profuse bleeding into the oropharynx. The patient's airway appears to be open. The ENT registrar has been informed and will arrive in approximately 10 minutes after finishing with a patient in the operating room. What is the most appropriate action to take in this situation?

      Your Answer: Apply adrenaline soaked dental roll to the bleeding point directing the pressure laterally

      Explanation:

      In patients who have undergone tonsillectomy and are experiencing severe bleeding, it is recommended to apply either Co-phenylcaine spray (a combination of lidocaine and phenylephrine) or 1:10,000 adrenaline soaked gauze/dental roll to the bleeding points. This helps to constrict the blood vessels and slow down the bleeding rate.

      To apply topical adrenaline, a dental roll or gauze soaked in 1:10,000 adrenaline solution is used. It is applied to the bleeding point using Magill’s forceps, with pressure directed laterally (not posteriorly). However, this may not be possible if the patient has a strong gag reflex. To minimize the risk of inhalation and facilitate suction, the patient’s head should be tilted to the side and/or forwards.

      For light or intermittent bleeding, hydrogen peroxide gargles can be used. However, they are not recommended for heavy bleeds.

      Further Reading:

      Tonsillectomy is a common procedure performed by ENT surgeons in the UK, with over 50,000 surgeries performed each year. While it is considered routine, there are risks of serious complications, including post-tonsillectomy bleeding. Approximately 5% of patients experience bleeding after the procedure, with most cases being self-limiting. However, severe bleeding can lead to hypovolemia and airway obstruction from clots, which can be life-threatening.

      Post-tonsillectomy bleeding can be classified as primary (reactive) or secondary (delayed). Primary bleeding occurs within 24 hours of the procedure, while secondary bleeding occurs more than 24 hours post-procedure. Secondary bleeding is often caused by factors such as sloughing of eschar, trauma from solid food ingestion, tonsil bed infection, postoperative NSAID usage, or unknown causes.

      Patients may present with symptoms such as vomiting blood, coughing up blood, tasting blood in the throat, finding blood on pillows or bed sheets, or excessive swallowing (especially in children). It is important for clinicians to assess the severity of blood loss, although it can be challenging to accurately estimate in children.

      The ABCDE approach should be used to assess patients, with a focus on airway compromise, hemodynamic instability, and evidence of bleeding. Clinicians may use a head torch to identify any bleeding points, which may be actively bleeding or appear as fresh red clots. It is important to note that the tonsillar fossa may appear white or yellow, which is a normal postoperative finding.

      Investigations such as a full blood count, coagulation profile, group and save, and venous blood gas may be performed to assess the patient’s condition. Senior support from ENT or anesthesiology should be called if there is active bleeding.

      Management of post-tonsillectomy bleeding includes positioning the patient upright and keeping them calm, establishing intravenous access, administering fluids and blood products as needed, and administering tranexamic acid to stop bleeding. Bleeding points may require gentle suction removal of fresh clots, and topical medications such as Co-phenylcaine spray or topical adrenaline may be applied to the oropharynx. All patients with post-tonsillectomy bleeding should be assessed by ENT and observed for a prolonged period, typically 12-24 hours.

      If bleeding remains uncontrolled, the patient should be kept nil by mouth in preparation for surgery, and early intervention.

    • This question is part of the following fields:

      • Ear, Nose & Throat
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  • Question 3 - A 45 year old man presents to the emergency department complaining of dizziness....

    Incorrect

    • A 45 year old man presents to the emergency department complaining of dizziness. The patient describes a sensation of the room spinning around him and a constant ringing in his ears. He mentions feeling nauseated and experiencing a decrease in his hearing ability. These symptoms began an hour ago, but he had a similar episode earlier in the week that lasted for 2-3 hours. The patient did not seek medical attention at that time, thinking the symptoms would resolve on their own. There is no significant medical history to note. Upon examination, the patient's vital signs are within normal range, and his cardiovascular and respiratory systems appear normal. The ears appear normal upon examination with an otoscope. Rinne's test reveals that air conduction is greater than bone conduction in both ears, while Weber's test shows lateralization to the right ear. When asked to march on the spot with his eyes closed, the patient stumbles and requires assistance to maintain balance. No other abnormalities are detected in the cranial nerves, and the patient's limbs exhibit normal power, tone, and reflexes.

      What is the most likely diagnosis?

      Your Answer: Vestibular neuronitis

      Correct Answer: Meniere's disease

      Explanation:

      One type of brainstem infarction is characterized by the presence of complete deafness on the same side as the affected area. This condition is unlikely to be caused by a transient ischemic attack (TIA) or stroke due to the patient’s age and absence of risk factors. Benign paroxysmal positional vertigo (BPPV) causes brief episodes of vertigo triggered by head movements. On the other hand, vestibular neuronitis (also known as vestibular neuritis) causes a persistent sensation of vertigo rather than intermittent episodes.

      Further Reading:

      Meniere’s disease is a disorder of the inner ear that is characterized by recurrent episodes of vertigo, tinnitus, and low frequency hearing loss. The exact cause of the disease is unknown, but it is believed to be related to excessive pressure and dilation of the endolymphatic system in the middle ear. Meniere’s disease is more common in middle-aged adults, but can occur at any age and affects both men and women equally.

      The clinical features of Meniere’s disease include episodes of vertigo that can last from minutes to hours. These attacks often occur in clusters, with several episodes happening in a week. Vertigo is usually the most prominent symptom, but patients may also experience a sensation of aural fullness or pressure. Nystagmus and a positive Romberg test are common findings, and the Fukuda stepping test may also be positive. While symptoms are typically unilateral, bilateral symptoms may develop over time.

      Rinne’s and Weber’s tests can be used to help diagnose Meniere’s disease. In Rinne’s test, air conduction should be better than bone conduction in both ears. In Weber’s test, the sound should be heard loudest in the unaffected (contralateral) side due to the sensorineural hearing loss.

      The natural history of Meniere’s disease is that symptoms often resolve within 5-10 years, but most patients are left with some residual hearing loss. Psychological distress is common among patients with this condition.

      The diagnostic criteria for Meniere’s disease include clinical features consistent with the disease, confirmed sensorineural hearing loss on audiometry, and exclusion of other possible causes.

      Management of Meniere’s disease involves an ENT assessment to confirm the diagnosis and perform audiometry. Patients should be advised to inform the DVLA and may need to cease driving until their symptoms are under control. Acute attacks can be treated with buccal or intramuscular prochlorperazine, and hospital admission may be necessary in some cases. Betahistine may be beneficial for prevention of symptoms.

    • This question is part of the following fields:

      • Ear, Nose & Throat
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  • Question 4 - A 35 year old male comes to the emergency department with a 3...

    Correct

    • A 35 year old male comes to the emergency department with a 3 hour history of nosebleed. You administer cautery to the right nostril which successfully stops the bleeding. You intend to release the patient. Which of the following medications would be the most suitable to prescribe?

      Your Answer: Prescribe naseptin cream four times daily for 10 days

      Explanation:

      After undergoing nasal cautery, it is recommended to follow these steps for proper treatment:

      1. Gently dab the cauterized area with a clean cotton bud to remove any excess chemical or blood.
      2. Apply a topical antiseptic preparation to the area.
      3. As the first line of treatment, prescribe Naseptin® cream (containing chlorhexidine and neomycin) to be applied to the nostrils four times daily for a duration of 10 days. However, if the patient has allergies to neomycin, peanut, or soya, prescribe mupirocin nasal ointment instead. This should be applied to the nostrils two to three times a day for 5-7 days.
      4. Advise the patient to avoid blowing their nose for a few hours.

      These steps will help ensure proper healing and minimize any potential complications after nasal cautery.

      Further Reading:

      Epistaxis, or nosebleed, is a common condition that can occur in both children and older adults. It is classified as either anterior or posterior, depending on the location of the bleeding. Anterior epistaxis usually occurs in younger individuals and arises from the nostril, most commonly from an area called Little’s area. These bleeds are usually not severe and account for the majority of nosebleeds seen in hospitals. Posterior nosebleeds, on the other hand, occur in older patients with conditions such as hypertension and atherosclerosis. The bleeding in posterior nosebleeds is likely to come from both nostrils and originates from the superior or posterior parts of the nasal cavity or nasopharynx.

      The management of epistaxis involves assessing the patient for signs of instability and implementing measures to control the bleeding. Initial measures include sitting the patient upright with their upper body tilted forward and their mouth open. Firmly pinching the cartilaginous part of the nose for 10-15 minutes without releasing the pressure can also help stop the bleeding. If these measures are successful, a cream called Naseptin or mupirocin nasal ointment can be prescribed for further treatment.

      If bleeding persists after the initial measures, nasal cautery or nasal packing may be necessary. Nasal cautery involves using a silver nitrate stick to cauterize the bleeding point, while nasal packing involves inserting nasal tampons or inflatable nasal packs to stop the bleeding. In cases of posterior bleeding, posterior nasal packing or surgery to tie off the bleeding vessel may be considered.

      Complications of epistaxis can include nasal bleeding, hypovolemia, anemia, aspiration, and even death. Complications specific to nasal packing include sinusitis, septal hematoma or abscess, pressure necrosis, toxic shock syndrome, and apneic episodes. Nasal cautery can lead to complications such as septal perforation and caustic injury to the surrounding skin.

      In children under the age of 2 presenting with epistaxis, it is important to refer them for further investigation as an underlying cause is more likely in this age group.

    • This question is part of the following fields:

      • Ear, Nose & Throat
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  • Question 5 - You are managing a 65 year old male who has presented to the...

    Correct

    • You are managing a 65 year old male who has presented to the emergency department with a 3 hour history of epistaxis. On examination there is significant bleeding from both nostrils and you are unable to identify a bleeding point. Your consultant asks if you are concerned about a posterior bleed.

      Posterior epistaxis is most commonly associated with bleeding from which of the following?

      Your Answer: Sphenopalatine artery

      Explanation:

      Posterior epistaxis, which is bleeding from the back of the nose, is typically caused by bleeding from the sphenopalatine artery or its branches. The most common surgical treatment for posterior epistaxis involves tying off the sphenopalatine artery. It is important to note that there is some disagreement in the literature regarding the exact location of the bleeding, with some sources referring to Woodruff’s plexus. However, cadaveric studies suggest that Woodruff’s plexus is more likely a venous anastomosis rather than an arterial one involving branches of the sphenopalatine artery.

      Further Reading:

      Epistaxis, or nosebleed, is a common condition that can occur in both children and older adults. It is classified as either anterior or posterior, depending on the location of the bleeding. Anterior epistaxis usually occurs in younger individuals and arises from the nostril, most commonly from an area called Little’s area. These bleeds are usually not severe and account for the majority of nosebleeds seen in hospitals. Posterior nosebleeds, on the other hand, occur in older patients with conditions such as hypertension and atherosclerosis. The bleeding in posterior nosebleeds is likely to come from both nostrils and originates from the superior or posterior parts of the nasal cavity or nasopharynx.

      The management of epistaxis involves assessing the patient for signs of instability and implementing measures to control the bleeding. Initial measures include sitting the patient upright with their upper body tilted forward and their mouth open. Firmly pinching the cartilaginous part of the nose for 10-15 minutes without releasing the pressure can also help stop the bleeding. If these measures are successful, a cream called Naseptin or mupirocin nasal ointment can be prescribed for further treatment.

      If bleeding persists after the initial measures, nasal cautery or nasal packing may be necessary. Nasal cautery involves using a silver nitrate stick to cauterize the bleeding point, while nasal packing involves inserting nasal tampons or inflatable nasal packs to stop the bleeding. In cases of posterior bleeding, posterior nasal packing or surgery to tie off the bleeding vessel may be considered.

      Complications of epistaxis can include nasal bleeding, hypovolemia, anemia, aspiration, and even death. Complications specific to nasal packing include sinusitis, septal hematoma or abscess, pressure necrosis, toxic shock syndrome, and apneic episodes. Nasal cautery can lead to complications such as septal perforation and caustic injury to the surrounding skin.

      In children under the age of 2 presenting with epistaxis, it is important to refer them for further investigation as an underlying cause is more likely in this age group.

    • This question is part of the following fields:

      • Ear, Nose & Throat
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  • Question 6 - You are requested to assess a 70 year old individual who has arrived...

    Correct

    • You are requested to assess a 70 year old individual who has arrived with a 3 hour duration of epistaxis. Which of the subsequent characteristics is indicative of a posterior nasal bleed?

      Your Answer: Bleeding from both nostrils

      Explanation:

      Posterior epistaxis is characterized by bleeding from both nostrils, which is usually heavy and difficult to control. It is commonly observed in older individuals with hypertension and/or atherosclerosis. In contrast, children typically experience anterior epistaxis, which involves bleeding from the front part of the nose. One of the distinguishing features of posterior epistaxis is the inability to easily identify the source of bleeding. Additionally, the bleeding in posterior epistaxis tends to be more severe and profuse compared to anterior bleeds.

      Further Reading:

      Epistaxis, or nosebleed, is a common condition that can occur in both children and older adults. It is classified as either anterior or posterior, depending on the location of the bleeding. Anterior epistaxis usually occurs in younger individuals and arises from the nostril, most commonly from an area called Little’s area. These bleeds are usually not severe and account for the majority of nosebleeds seen in hospitals. Posterior nosebleeds, on the other hand, occur in older patients with conditions such as hypertension and atherosclerosis. The bleeding in posterior nosebleeds is likely to come from both nostrils and originates from the superior or posterior parts of the nasal cavity or nasopharynx.

      The management of epistaxis involves assessing the patient for signs of instability and implementing measures to control the bleeding. Initial measures include sitting the patient upright with their upper body tilted forward and their mouth open. Firmly pinching the cartilaginous part of the nose for 10-15 minutes without releasing the pressure can also help stop the bleeding. If these measures are successful, a cream called Naseptin or mupirocin nasal ointment can be prescribed for further treatment.

      If bleeding persists after the initial measures, nasal cautery or nasal packing may be necessary. Nasal cautery involves using a silver nitrate stick to cauterize the bleeding point, while nasal packing involves inserting nasal tampons or inflatable nasal packs to stop the bleeding. In cases of posterior bleeding, posterior nasal packing or surgery to tie off the bleeding vessel may be considered.

      Complications of epistaxis can include nasal bleeding, hypovolemia, anemia, aspiration, and even death. Complications specific to nasal packing include sinusitis, septal hematoma or abscess, pressure necrosis, toxic shock syndrome, and apneic episodes. Nasal cautery can lead to complications such as septal perforation and caustic injury to the surrounding skin.

      In children under the age of 2 presenting with epistaxis, it is important to refer them for further investigation as an underlying cause is more likely in this age group.

    • This question is part of the following fields:

      • Ear, Nose & Throat
      15.7
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  • Question 7 - A 45-year-old man presents with brief episodes of vertigo that are worse in...

    Correct

    • A 45-year-old man presents with brief episodes of vertigo that are worse in the evening and is triggered by head movement and turning in bed. Each episode lasts only a couple of minutes. He experiences nausea during the attacks but has not vomited. He has no previous history of hearing loss or tinnitus.

      What is the SINGLE most probable diagnosis?

      Your Answer: Benign paroxysmal positional vertigo (BPPV)

      Explanation:

      Benign paroxysmal positional vertigo (BPPV) occurs when there is dysfunction in the inner ear. This dysfunction causes the otoliths, which are located in the utricle, to become dislodged from their normal position and migrate into one of the semicircular canals over time. As a result, these detached otoliths continue to move even after head movement has stopped, leading to vertigo due to the conflicting sensation of ongoing movement with other sensory inputs.

      While the majority of BPPV cases have no identifiable cause (idiopathic), approximately 40% of cases can be attributed to factors such as head injury, spontaneous labyrinthine degeneration, post-viral illness, middle ear surgery, or chronic middle ear disease.

      The main clinical features of BPPV include symptoms that are provoked by head movement, rolling over, and upward gaze. These episodes are typically brief, lasting less than 5 minutes, and are often worse in the mornings. Unlike other inner ear disorders, BPPV does not cause hearing loss or tinnitus. Nausea is a common symptom, while vomiting is rare. The Dix-Hallpike test can be used to confirm the diagnosis of BPPV.

      It is important to note that vestibular suppressant medications have not been proven to be beneficial in managing BPPV. These medications do not improve symptoms or reduce the duration of the disease.

      The treatment of choice for BPPV is the Epley manoeuvre. This maneuver aims to reposition the dislodged otoliths back into the utricles from the semicircular canals. A 2014 Cochrane review concluded that the Epley manoeuvre is a safe and effective treatment for BPPV, with a number needed to treat of 2-4.

      Referral to an ENT specialist is recommended for patients with BPPV in the following situations: if the treating clinician is unable to perform or access the Epley manoeuvre, if the Epley manoeuvre has not been beneficial after repeated attempts (minimum two), if the patient has been symptomatic for more than 4 weeks, or if the patient has experienced more than 3 episodes of BPPV.

    • This question is part of the following fields:

      • Ear, Nose & Throat
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  • Question 8 - A 14-year-old girl comes in with a sudden onset of a painful throat...

    Incorrect

    • A 14-year-old girl comes in with a sudden onset of a painful throat that has been bothering her for the past day. She has no history of coughing or cold symptoms. During the examination, her temperature is measured at 38.5°C, and there is visible exudate on her right tonsil, which also appears to be swollen and red. No anterior cervical lymph nodes can be felt. What is her FeverPAIN Score for assessing her sore throat?

      Your Answer: 3

      Correct Answer: 5

      Explanation:

      Two scoring systems are suggested by NICE to aid in the evaluation of sore throat: The Centor Clinical Prediction Score and The FeverPAIN Score.

      The FeverPAIN score was developed from a study involving 1760 adults and children aged three and above. The score was tested in a trial that compared three prescribing strategies: empirical delayed prescribing, using the score to guide prescribing, or a combination of the score with the use of a near-patient test (NPT) for streptococcus. Utilizing the score resulted in faster symptom resolution and a reduction in the prescription of antibiotics (both reduced by one third). The inclusion of the NPT did not provide any additional benefit.

      The score comprises of five factors, each of which is assigned one point: Fever (Temp >38°C) in the last 24 hours, Purulence, Attended rapidly in under three days, Inflamed tonsils, and No cough or coryza.

      Based on the score, the recommendations are as follows:
      – Score 0-1 = 13-18% likelihood of streptococcus infection, antibiotics are not recommended.
      – Score 2-3 = 34-40% likelihood of streptococcus infection, consider delayed prescribing of antibiotics (3-5 day ‘backup prescription’).
      – Score 4-5 = 62-65% likelihood of streptococcus infection, use immediate antibiotics if severe, or a 48-hour short ‘backup prescription.’

    • This question is part of the following fields:

      • Ear, Nose & Throat
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  • Question 9 - A 21-year-old college student comes to the clinic complaining of a sore throat,...

    Correct

    • A 21-year-old college student comes to the clinic complaining of a sore throat, low-grade fever, and feeling generally unwell for the past week. She mentions that she had a faint rash all over her body that disappeared quickly about a week ago. During the examination, you observe mild enlargement of the spleen. The heterophile antibody test comes back positive, confirming a diagnosis of infectious mononucleosis.
      What is the most distinguishing feature of infectious mononucleosis?

      Your Answer: Atypical lymphocytes

      Explanation:

      Infectious mononucleosis is typically a self-limiting infection that is primarily caused by the Epstein-Barr virus (EBV), a member of the human herpesvirus family. About 10% of cases are caused by cytomegalovirus (CMV) infection.

      This clinical infection is most commonly observed in populations with a large number of young adults, such as university students and active-duty military personnel.

      The main clinical features of infectious mononucleosis include a low-grade fever, fatigue, prolonged malaise, sore throat (often accompanied by tonsillar enlargement and exudate), a transient, fine, non-itchy rash, lymphadenopathy (most commonly in the cervical region), arthralgia and myalgia, mild enlargement of the liver and spleen, and jaundice (which is less common in young adults but more prevalent in the elderly).

      To diagnose EBV infectious mononucleosis, a variety of unrelated non-EBV heterophile antibodies and specific EBV antibodies can be used.

      1. Heterophile antibodies:
      Around 70-90% of patients with EBV infectious mononucleosis produce heterophile antibodies, which are antibodies that react against antigens from other species. False positives can occur with hepatitis, malaria, toxoplasmosis, rubella, systemic lupus erythematosus (SLE), lymphoma, and leukemia. Two main screening tests can detect these antibodies and provide rapid results within a day:
      – Paul-Bunnell test: Sheep red blood cells agglutinate in the presence of heterophile antibodies.
      – Monospot test: Horse red blood cells agglutinate in the presence of heterophile antibodies.

      2. EBV-specific antibodies:
      Patients who remain heterophile-negative after six weeks are considered heterophile-negative and should be tested for EBV-specific antibodies. These antibodies are also useful in cases where a false positive heterophile antibody test is suspected.

      Other useful investigations include a full blood count, which often shows a raised white cell count with lymphocytosis and atypical lymphocytes in more than 20% of cases, an elevated erythrocyte sedimentation rate (ESR) in most patients, liver function tests (LFTs) that may show mild elevation of serum transaminases, throat swabs to rule out group A streptococci pharyngitis as a differential diagnosis, and abdominal ultrasound if splenomegaly is present.

    • This question is part of the following fields:

      • Ear, Nose & Throat
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  • Question 10 - A 45-year-old patient arrives at the emergency department with a complaint of sudden...

    Incorrect

    • A 45-year-old patient arrives at the emergency department with a complaint of sudden hearing loss. During the examination, tuning fork tests are conducted. Weber's test shows lateralization to the left side, Rinne's test is negative on the left ear and positive on the right ear.

      Based on this assessment, which of the following can be inferred?

      Your Answer:

      Correct Answer: Right sided conductive hearing loss

      Explanation:

      In cases of conductive hearing loss, the Rinne test result is negative on the affected side, meaning that bone conduction is greater than air conduction. Additionally, the Weber test result will lateralize to the affected side. If the Weber test lateralizes to the right, it indicates either sensorineural hearing loss in the left ear (opposite side) or conductive hearing loss in the right ear (same side). A positive Rinne test result, where air conduction is greater than bone conduction, is typically seen in individuals with normal hearing or sensorineural hearing loss. In the case of conductive hearing loss in the right ear, a negative Rinne test result would be expected on the right side, indicating that bone conduction is greater than air conduction.

      Further Reading:

      Hearing loss is a common complaint that can be caused by various conditions affecting different parts of the ear and nervous system. The outer ear is the part of the ear outside the eardrum, while the middle ear is located between the eardrum and the cochlea. The inner ear is within the bony labyrinth and consists of the vestibule, semicircular canals, and cochlea. The vestibulocochlear nerve connects the inner ear to the brain.

      Hearing loss can be classified based on severity, onset, and type. Severity is determined by the quietest sound that can be heard, measured in decibels. It can range from mild to profound deafness. Onset can be sudden, rapidly progressive, slowly progressive, or fluctuating. Type of hearing loss can be either conductive or sensorineural. Conductive hearing loss is caused by issues in the external ear, eardrum, or middle ear that disrupt sound transmission. Sensorineural hearing loss is caused by problems in the cochlea, auditory nerve, or higher auditory processing pathways.

      To diagnose sensorineural and conductive deafness, a 512 Hz tuning fork is used to perform Rinne and Weber’s tests. These tests help determine the type of hearing loss based on the results. In Rinne’s test, air conduction (AC) and bone conduction (BC) are compared, while Weber’s test checks for sound lateralization.

      Cholesteatoma is a condition characterized by the abnormal accumulation of skin cells in the middle ear or mastoid air cell spaces. It is believed to develop from a retraction pocket that traps squamous cells. Cholesteatoma can cause the accumulation of keratin and the destruction of adjacent bones and tissues due to the production of destructive enzymes. It can lead to mixed sensorineural and conductive deafness as it affects both the middle and inner ear.

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      • Ear, Nose & Throat
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  • Question 11 - A fit and healthy 40-year-old woman presents with a sudden onset of facial...

    Incorrect

    • A fit and healthy 40-year-old woman presents with a sudden onset of facial palsy that began 48 hours ago. After conducting a thorough history and examination, the patient is diagnosed with Bell's palsy.
      Which of the following statements about Bell's palsy is accurate?

      Your Answer:

      Correct Answer: ‘Bell’s phenomenon’ is the rolling upwards and outwards of the eye on the affected side when attempting to close the eye and bare the teeth

      Explanation:

      Bell’s palsy is a condition characterized by a facial paralysis that affects the lower motor neurons. It can be distinguished from an upper motor neuron lesion by the inability to raise the eyebrow and the involvement of the upper facial muscles.

      One distinctive feature of Bell’s palsy is the occurrence of Bell’s phenomenon, which refers to the upward and outward rolling of the eye on the affected side when attempting to close the eye and bare the teeth.

      Approximately 80% of sudden onset lower motor neuron facial palsies are attributed to Bell’s palsy. It is believed that this condition is caused by swelling of the facial nerve within the petrous temporal bone, which is secondary to a latent herpesvirus, specifically HSV-1 and HZV.

      Unlike some other conditions, Bell’s palsy does not lead to sensorineural deafness and tinnitus.

      Treatment options for Bell’s palsy include the use of steroids and acyclovir.

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      • Ear, Nose & Throat
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  • Question 12 - You are requested to evaluate a 30-year-old individual experiencing facial weakness, who has...

    Incorrect

    • You are requested to evaluate a 30-year-old individual experiencing facial weakness, who has been assessed by a medical student. The medical student has tentatively diagnosed the patient with Bell's palsy. Among the following signs or symptoms, which is frequently observed in individuals with Bell's palsy?

      Your Answer:

      Correct Answer: Otalgia or post-auricular regional pain

      Explanation:

      Bell’s palsy is a condition characterized by sudden weakness or paralysis of the facial nerve, resulting in facial muscle weakness or drooping. The exact cause is unknown, but it is believed to be related to viral infections such as herpes simplex or varicella zoster. It is more common in individuals aged 15-45 years and those with diabetes, obesity, hypertension, or upper respiratory conditions. Pregnancy is also a risk factor.

      Diagnosis of Bell’s palsy is typically based on clinical symptoms and ruling out other possible causes of facial weakness. Symptoms include rapid onset of unilateral facial muscle weakness, drooping of the eyebrow and corner of the mouth, loss of the nasolabial fold, otalgia, difficulty chewing or dry mouth, taste disturbance, eye symptoms such as inability to close the eye completely, dry eye, eye pain, and excessive tearing, numbness or tingling of the cheek and mouth, speech articulation problems, and hyperacusis.

      When assessing a patient with facial weakness, it is important to consider other possible differentials such as stroke, facial nerve tumors, Lyme disease, granulomatous diseases, Ramsay Hunt syndrome, mastoiditis, and chronic otitis media. Red flags for these conditions include insidious and painful onset, duration of symptoms longer than 3 months with frequent relapses, pre-existing risk factors, systemic illness or fever, vestibular or hearing abnormalities, and other cranial nerve involvement.

      Management of Bell’s palsy involves the use of steroids, eye care advice, and reassurance. Steroids, such as prednisolone, are recommended for individuals presenting within 72 hours of symptom onset. Eye care includes the use of lubricating eye drops, eye ointment at night, eye taping if unable to close the eye at night, wearing sunglasses, and avoiding dusty environments. Reassurance is important as the majority of patients make a complete recovery within 3-4 months. However, some individuals may experience sequelae such as facial asymmetry, gustatory lacrimation, inadequate lid closure, brow ptosis, drooling, and hemifacial spasms.

      Antiviral treatments are not currently recommended as a standalone treatment for Bell’s palsy, but they may be given in combination with corticosteroids on specialist advice. Referral to an ophthalmologist is necessary if the patient has eye symptoms such as pain, irritation, or itch.

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  • Question 13 - A 45-year-old man presents with a 4-day history of dizziness. It started suddenly...

    Incorrect

    • A 45-year-old man presents with a 4-day history of dizziness. It started suddenly in the morning upon waking, and he is currently unable to get out of bed and is lying still. The dizziness symptoms are worsened by moving and he has vomited multiple times. He had a viral upper respiratory tract infection last week that has now resolved. He has never experienced dizziness before. On examination, he has an unsteady gait, slightly reduced hearing on the left, and prominent horizontal nystagmus to the right. The Hallpike maneuver was negative, and Weber's test lateralizes to the right.
      What is the SINGLE most likely diagnosis?

      Your Answer:

      Correct Answer: Labyrinthitis

      Explanation:

      Differentiating between the various causes of vertigo can be challenging, but there are several clues in the question that can help determine the most likely cause. If the patient has a history of sudden and severe vertigo following a viral infection, the diagnosis is likely to be vestibular neuritis or labyrinthitis. Labyrinthitis, which is characterized by hearing loss and tinnitus, is more likely in this case. Meniere’s disease, on the other hand, can also cause hearing loss and tinnitus along with vertigo, but it typically has a longer history of gradually worsening hearing loss and does not cause prolonged vertigo attacks.

      Here are the key clinical features of the different causes of vertigo mentioned in the question:

      Vestibular neuronitis:
      – Infection of the 8th cranial nerve, often viral or bacterial
      – Usually preceded by a sinus infection or upper respiratory tract infection
      – Severe vertigo
      – Vertigo is not related to position
      – No hearing loss or tinnitus
      – Nausea and vomiting are common
      – Nystagmus (involuntary eye movement) away from the side of the lesion
      – Episodes may recur over an 18-month period

      Labyrinthitis:
      – Caused by a viral infection
      – Can affect the entire inner ear and 8th cranial nerve
      – Severe vertigo
      – Vertigo can be related to position
      – Can be accompanied by sensorineural hearing loss and tinnitus
      – Nausea and vomiting are common
      – Nystagmus away from the side of the lesion

      Benign positional vertigo:
      – Mostly idiopathic (unknown cause)
      – Can be secondary to trauma or other inner ear disorders
      – Provoked by head movement, rolling over, or upward gaze
      – Brief episodes lasting less than 5 minutes
      – No hearing loss or tinnitus
      – Nausea is common, vomiting is rare
      – Positive Hallpike maneuver (a diagnostic test)

      Meniere’s disease:
      – Idiopathic (unknown cause)
      – Sensorineural hearing loss
      – Hearing loss usually gradually worsens and affects one ear
      – Commonly associated with tinnitus
      – Vertigo attacks typically last 2-3 hours
      – Attacks of vertigo last less than 24 hours
      – Sensation of fullness or pressure in the ear(s)
      – Nausea and vomiting are common
      – Nystagmus away from the side of the lesion

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  • Question 14 - A 60 year old female comes to the emergency department complaining of sudden...

    Incorrect

    • A 60 year old female comes to the emergency department complaining of sudden difficulty in breathing. Upon examination, it is observed that the patient has had a tracheostomy for a prolonged period due to being on a ventilator after a severe head injury. Following the emergency tracheostomy algorithm, the tracheostomy is removed, but the patient's condition does not improve. What should be the next course of action in managing this patient?

      Your Answer:

      Correct Answer: Cover the stoma and begin bag valve mask ventilation

      Explanation:

      When attempting to ventilate a patient with a tracheostomy, the first approach is usually through the mouth. If this is not successful, ventilation through the tracheostomy stoma is appropriate. After removing the tracheostomy, the doctor should begin ventilating the patient through the mouth by performing standard oral manoeuvres and covering the stoma with a hand or swab. If these measures fail, the clinician should then proceed to ventilate through the tracheostomy stoma using a bag valve mask and appropriate adjuncts such as oral or nasal adjuncts or an LMA.

      Further Reading:

      Patients with tracheostomies may experience emergencies such as tube displacement, tube obstruction, and bleeding. Tube displacement can occur due to accidental dislodgement, migration, or erosion into tissues. Tube obstruction can be caused by secretions, lodged foreign bodies, or malfunctioning humidification devices. Bleeding from a tracheostomy can be classified as early or late, with causes including direct injury, anticoagulation, mucosal or tracheal injury, and granulation tissue.

      When assessing a patient with a tracheostomy, an ABCDE approach should be used, with attention to red flags indicating a tracheostomy or laryngectomy emergency. These red flags include audible air leaks or bubbles of saliva indicating gas escaping past the cuff, grunting, snoring, stridor, difficulty breathing, accessory muscle use, tachypnea, hypoxia, visibly displaced tracheostomy tube, blood or blood-stained secretions around the tube, increased discomfort or pain, increased air required to keep the cuff inflated, tachycardia, hypotension or hypertension, decreased level of consciousness, and anxiety, restlessness, agitation, and confusion.

      Algorithms are available for managing tracheostomy emergencies, including obstruction or displaced tube. Oxygen should be delivered to the face and stoma or tracheostomy tube if there is uncertainty about whether the patient has had a laryngectomy. Tracheostomy bleeding can be classified as early or late, with causes including direct injury, anticoagulation, mucosal or tracheal injury, and granulation tissue. Tracheo-innominate fistula (TIF) is a rare but life-threatening complication that occurs when the tracheostomy tube erodes into the innominate artery. Urgent surgical intervention is required for TIF, and management includes general resuscitation measures and specific measures such as bronchoscopy and applying direct digital pressure to the innominate artery.

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  • Question 15 - You assess a patient with one-sided hearing loss, ringing in the ears, and...

    Incorrect

    • You assess a patient with one-sided hearing loss, ringing in the ears, and numbness in the face. An MRI scan shows the presence of an acoustic neuroma.
      Which of the following nerves is the LEAST likely to be affected?

      Your Answer:

      Correct Answer: Trochlear nerve

      Explanation:

      An acoustic neuroma, also referred to as a vestibular schwannoma, is a slow-growing tumor that develops from the Schwann cells of the vestibulocochlear nerve (8th cranial nerve). These growths are typically found at the cerebellopontine angle or within the internal auditory canal.

      The most commonly affected nerves are the vestibulocochlear and trigeminal nerves. Patients typically experience a gradual deterioration of hearing in one ear, along with numbness and tingling in the face, ringing in the ears, and episodes of dizziness. Headaches may also be present, and in rare cases, the facial nerve, glossopharyngeal nerve, vagus nerve, or accessory nerve may be affected.

      It’s important to note that the trochlear nerve, which passes through the superior orbital fissure, is not impacted by an acoustic neuroma.

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  • Question 16 - You evaluate a 60-year-old man with a previous diagnosis of hearing impairment.
    Which tuning...

    Incorrect

    • You evaluate a 60-year-old man with a previous diagnosis of hearing impairment.
      Which tuning fork should be utilized to conduct a Rinne's test on this individual?

      Your Answer:

      Correct Answer: 512 Hz

      Explanation:

      A 512 Hz tuning fork is commonly used for both the Rinne’s and Weber’s tests. However, a lower-pitched fork, such as a 128 Hz tuning fork, is typically used to assess vibration sense during a peripheral nervous system examination. Although a 256 Hz tuning fork can be used for either test, it is considered less reliable for both.

      To perform a Rinne’s test, the 512 Hz tuning fork is first made to vibrate and then placed on the mastoid process until the sound is no longer heard. The top of the tuning fork is then positioned 2 cm away from the external auditory meatus, and the patient is asked to indicate where they hear the sound loudest.

      In individuals with normal hearing, the tuning fork should still be audible outside the external auditory canal even after it is no longer appreciated on the mastoid. This is because air conduction should be greater than bone conduction.

      In cases of conductive hearing loss, the patient will no longer hear the tuning fork once it is no longer appreciated on the mastoid. This suggests that their bone conduction is greater than their air conduction, indicating an obstruction in the passage of sound waves through the ear canal into the cochlea. This is considered a true negative result.

      However, a Rinne’s test may yield a false negative result if the patient has a severe unilateral sensorineural deficit and senses the sound in the unaffected ear through the transmission of sound waves through the base of the skull.

      In sensorineural hearing loss, the ability to perceive the tuning fork on both the mastoid and outside the external auditory canal is equally diminished compared to the opposite ear. Although the sound will still be heard outside the external auditory canal, it will disappear earlier on the mastoid process and outside the external auditory canal compared to the other ear.

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  • Question 17 - You are requested to evaluate a 42-year-old woman who has come in with...

    Incorrect

    • You are requested to evaluate a 42-year-old woman who has come in with a nosebleed and was initially assessed by one of the medical students. You get ready to conduct rhinoscopy in order to locate the source of bleeding.

      What is the probable location of epistaxis?

      Your Answer:

      Correct Answer: Kiesselbach plexus

      Explanation:

      Most nosebleeds, also known as epistaxis, occur at a specific area called Little’s area.

      Epistaxis, or nosebleed, is a common condition that can occur in both children and older adults. It is classified as either anterior or posterior, depending on the location of the bleeding. Anterior epistaxis usually occurs in younger individuals and arises from the nostril, most commonly from an area called Little’s area. These bleeds are usually not severe and account for the majority of nosebleeds seen in hospitals. Posterior nosebleeds, on the other hand, occur in older patients with conditions such as hypertension and atherosclerosis. The bleeding in posterior nosebleeds is likely to come from both nostrils and originates from the superior or posterior parts of the nasal cavity or nasopharynx.

      The management of epistaxis involves assessing the patient for signs of instability and implementing measures to control the bleeding. Initial measures include sitting the patient upright with their upper body tilted forward and their mouth open. Firmly pinching the cartilaginous part of the nose for 10-15 minutes without releasing the pressure can also help stop the bleeding. If these measures are successful, a cream called Naseptin or mupirocin nasal ointment can be prescribed for further treatment.

      If bleeding persists after the initial measures, nasal cautery or nasal packing may be necessary. Nasal cautery involves using a silver nitrate stick to cauterize the bleeding point, while nasal packing involves inserting nasal tampons or inflatable nasal packs to stop the bleeding. In cases of posterior bleeding, posterior nasal packing or surgery to tie off the bleeding vessel may be considered.

      Complications of epistaxis can include nasal bleeding, hypovolemia, anemia, aspiration, and even death. Complications specific to nasal packing include sinusitis, septal hematoma or abscess, pressure necrosis, toxic shock syndrome, and apneic episodes. Nasal cautery can lead to complications such as septal perforation and caustic injury to the surrounding skin.

      In children under the age of 2 presenting with epistaxis, it is important to refer them for further investigation as an underlying cause is more likely in this age group.

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  • Question 18 - A 21 year old male presents to the emergency department with a 3...

    Incorrect

    • A 21 year old male presents to the emergency department with a 3 day history of a sore throat and fever. The patient denies having a cough. On examination, the patient's temperature is 37.9°C, blood pressure is 120/80 mmHg, and pulse rate is 90 bpm. There is visible white exudate on both tonsils, which are severely inflamed, and tenderness on palpation of the lymph nodes around the sternocleidomastoid muscles bilaterally.

      What is this patient's FeverPAIN score?

      Your Answer:

      Correct Answer: 4

      Explanation:

      The FeverPAIN score is a clinical scoring system that helps determine the likelihood of a streptococcal infection and whether antibiotic treatment is necessary. It consists of several criteria that are assessed to assign a score.

      Firstly, if the patient has a fever higher than 38°C, they score 0 or 1 depending on the presence or absence of this symptom.

      Secondly, the presence of purulence, such as pharyngeal or tonsillar exudate, results in a score of 1.

      Thirdly, if the patient sought medical attention within 3 days or less, they score 1.

      Fourthly, if the patient has severely inflamed tonsils, they score 1.

      Lastly, if the patient does not have a cough or coryza (nasal congestion), they score 1.

      By adding up the scores from each criterion, the FeverPAIN score can help healthcare professionals determine the likelihood of a streptococcal infection and guide the decision on whether antibiotic treatment is necessary. In this particular case, the patient has a score of 4.

      Further Reading:

      Pharyngitis and tonsillitis are common conditions that cause inflammation in the throat. Pharyngitis refers to inflammation of the oropharynx, which is located behind the soft palate, while tonsillitis refers to inflammation of the tonsils. These conditions can be caused by a variety of pathogens, including viruses and bacteria. The most common viral causes include rhinovirus, coronavirus, parainfluenza virus, influenza types A and B, adenovirus, herpes simplex virus type 1, and Epstein Barr virus. The most common bacterial cause is Streptococcus pyogenes, also known as Group A beta-hemolytic streptococcus (GABHS). Other bacterial causes include Group C and G beta-hemolytic streptococci and Fusobacterium necrophorum.

      Group A beta-hemolytic streptococcus is the most concerning pathogen as it can lead to serious complications such as rheumatic fever and glomerulonephritis. These complications can occur due to an autoimmune reaction triggered by antigen/antibody complex formation or from cell damage caused by bacterial exotoxins.

      When assessing a patient with a sore throat, the clinician should inquire about the duration and severity of the illness, as well as associated symptoms such as fever, malaise, headache, and joint pain. It is important to identify any red flags and determine if the patient is immunocompromised. Previous non-suppurative complications of Group A beta-hemolytic streptococcus infection should also be considered, as there is an increased risk of further complications with subsequent infections.

      Red flags that may indicate a more serious condition include severe pain, neck stiffness, or difficulty swallowing. These symptoms may suggest epiglottitis or a retropharyngeal abscess, which require immediate attention.

      To determine the likelihood of a streptococcal infection and the need for antibiotic treatment, two scoring systems can be used: CENTOR and FeverPAIN. The CENTOR criteria include tonsillar exudate, tender anterior cervical lymphadenopathy or lymphadenitis, history of fever, and absence of cough. The FeverPAIN criteria include fever, purulence, rapid onset of symptoms, severely inflamed tonsils, and absence of cough or coryza. Based on the scores from these criteria, the likelihood of a streptococcal infection can be estimated, and appropriate management can be undertaken. can

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  • Question 19 - A 72-year-old male is brought to the emergency department after experiencing respiratory distress....

    Incorrect

    • A 72-year-old male is brought to the emergency department after experiencing respiratory distress. You observe that the patient has a tracheostomy tube in place, which the patient's wife informs you was inserted before undergoing radiation therapy. The patient finished radiation therapy one month ago. What should be the initial step in evaluating this patient?

      Your Answer:

      Correct Answer: Remove inner tube

      Explanation:

      When a patient with a tracheostomy is experiencing difficulty breathing, the first step is to assess their condition and provide them with oxygen. If there is suspected obstruction, one of the initial steps to resolve it is to remove the inner tube of the tracheostomy. After that, the mouth and tracheostomy should be examined, and if the patient is breathing, high flow oxygen should be applied to both the mouth and the tracheostomy stoma site. The next steps in managing the patient would be to pass a suction catheter. If the catheter cannot be passed, the cuff should be deflated. If the patient does not stabilize or improve, the tracheostomy tube should be removed. This order of steps is summarized in the green algorithm.

      Further Reading:

      Patients with tracheostomies may experience emergencies such as tube displacement, tube obstruction, and bleeding. Tube displacement can occur due to accidental dislodgement, migration, or erosion into tissues. Tube obstruction can be caused by secretions, lodged foreign bodies, or malfunctioning humidification devices. Bleeding from a tracheostomy can be classified as early or late, with causes including direct injury, anticoagulation, mucosal or tracheal injury, and granulation tissue.

      When assessing a patient with a tracheostomy, an ABCDE approach should be used, with attention to red flags indicating a tracheostomy or laryngectomy emergency. These red flags include audible air leaks or bubbles of saliva indicating gas escaping past the cuff, grunting, snoring, stridor, difficulty breathing, accessory muscle use, tachypnea, hypoxia, visibly displaced tracheostomy tube, blood or blood-stained secretions around the tube, increased discomfort or pain, increased air required to keep the cuff inflated, tachycardia, hypotension or hypertension, decreased level of consciousness, and anxiety, restlessness, agitation, and confusion.

      Algorithms are available for managing tracheostomy emergencies, including obstruction or displaced tube. Oxygen should be delivered to the face and stoma or tracheostomy tube if there is uncertainty about whether the patient has had a laryngectomy. Tracheostomy bleeding can be classified as early or late, with causes including direct injury, anticoagulation, mucosal or tracheal injury, and granulation tissue. Tracheo-innominate fistula (TIF) is a rare but life-threatening complication that occurs when the tracheostomy tube erodes into the innominate artery. Urgent surgical intervention is required for TIF, and management includes general resuscitation measures and specific measures such as bronchoscopy and applying direct digital pressure to the innominate artery.

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  • Question 20 - A 42-year-old woman from Southeast Asia comes in with left-sided nasal blockage and...

    Incorrect

    • A 42-year-old woman from Southeast Asia comes in with left-sided nasal blockage and hearing difficulties in her left ear that have persisted for six weeks. She also reports experiencing postnasal drip. During the examination, a prominent palpable lymph node is found in the upper jugular chain on the left side.

      What is the SINGLE most probable diagnosis?

      Your Answer:

      Correct Answer: Nasopharyngeal carcinoma

      Explanation:

      This patient is experiencing a blockage in one nostril, hearing loss in one ear, and a newly developed hearing impairment. Additionally, there is a noticeable swollen lymph node in the upper jugular chain on the affected side. These symptoms strongly suggest the possibility of nasopharyngeal carcinoma.
      Nasopharyngeal carcinoma is not very common in the U.K., but it has a higher occurrence in individuals from Southeast Asia. In this region, the disease is often linked to the Epstein-Barr virus (EBV). It typically affects individuals between the ages of 40 and 70.
      The most common signs of nasopharyngeal carcinoma include a lump in the neck (present in approximately 80% of cases), one-sided nasal blockage (present in approximately 60% of cases), one-sided deafness (present in approximately 50% of cases), and post-nasal discharge (present in approximately 50% of cases). Lymph nodes in the upper jugular chain are often detectable.
      It is crucial to refer this patient urgently using a suspected cancer referral pathway to ensure an appointment within two weeks.
      For more information, please refer to the NICE guidelines on the recognition and referral of suspected cancer.

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  • Question 21 - You evaluate a 3-year-old who has been brought to the emergency department due...

    Incorrect

    • You evaluate a 3-year-old who has been brought to the emergency department due to difficulty feeding, irritability, and a high fever. During the examination, you observe a red post-auricular lump, which raises concerns for mastoiditis. What is a commonly known complication associated with mastoiditis?

      Your Answer:

      Correct Answer: Facial nerve palsy

      Explanation:

      Mastoiditis can lead to the development of cranial nerve palsies, specifically affecting the trigeminal (CN V), abducens (CN VI), and facial (CN VII) nerves. This occurs when the infection spreads to the petrous apex of the temporal bone, where these nerves are located. The close proximity of the sixth cranial nerve and the trigeminal ganglion, separated only by the dura mater, can result in inflammation and subsequent nerve damage. Additionally, the facial nerve is at risk as it passes through the mastoid via the facial canal.

      Further Reading:

      Mastoiditis is an infection of the mastoid air cells, which are located in the mastoid process of the skull. It is usually caused by the spread of infection from the middle ear. The most common organism responsible for mastoiditis is Streptococcus pneumoniae, but other bacteria and fungi can also be involved. The infection can spread to surrounding structures, such as the meninges, causing serious complications like meningitis or cerebral abscess.

      Mastoiditis can be classified as acute or chronic. Acute mastoiditis is a rare complication of acute otitis media, which is inflammation of the middle ear. It is characterized by severe ear pain, fever, swelling and redness behind the ear, and conductive deafness. Chronic mastoiditis is usually associated with chronic suppurative otitis media or cholesteatoma and presents with recurrent episodes of ear pain, headache, and fever.

      Mastoiditis is more common in children, particularly those between 6 and 13 months of age. Other risk factors include immunocompromised patients, those with intellectual impairment or communication difficulties, and individuals with cholesteatoma.

      Diagnosis of mastoiditis involves a physical examination, blood tests, ear swab for culture and sensitivities, and imaging studies like contrast-enhanced CT or MRI. Treatment typically involves referral to an ear, nose, and throat specialist, broad-spectrum intravenous antibiotics, pain relief, and myringotomy (a procedure to drain fluid from the middle ear).

      Complications of mastoiditis are rare but can be serious. They include intracranial abscess, meningitis, subperiosteal abscess, neck abscess, venous sinus thrombosis, cranial nerve palsies, hearing loss, labyrinthitis, extension to the zygoma, and carotid artery arteritis. However, most patients with mastoiditis have a good prognosis and do not experience long-term ear problems.

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  • Question 22 - A 32 year old male who is a type 1 diabetic presents to...

    Incorrect

    • A 32 year old male who is a type 1 diabetic presents to the emergency department feeling unwell with a 2 day history of right sided earache. The patient's observations are shown below. On examination, you note the tympanic membrane is bulging and pink. There is no mastoid tenderness or palpable lymphadenopathy in the head or neck. The rest of the examination is unremarkable.

      Blood pressure: 128/84 mmHg
      Pulse: 82 bpm
      Respiration rate: 18 bpm
      Temperature: 37.9ºC
      Oxygen saturations: 98% on air

      What is the most appropriate management?

      Your Answer:

      Correct Answer: Discharge with prescription for amoxicillin

      Explanation:

      Patients who have acute otitis media (AOM) and are immunocompromised or systemically unwell should be given an immediate prescription for antibiotics. However, for most patients with AOM, antibiotics are not necessary or can be delayed. An immediate antibiotic prescription should be offered to patients who are systemically unwell but do not require hospitalization, patients at high risk of complications due to underlying health conditions, and patients whose symptoms have persisted for four days or more without improvement. The recommended first choice antibiotic for AOM is amoxicillin.

      Further Reading:

      Acute otitis media (AOM) is an inflammation in the middle ear accompanied by symptoms and signs of an ear infection. It is commonly seen in young children below 4 years of age, with the highest incidence occurring between 9 to 15 months of age. AOM can be caused by viral or bacterial pathogens, and co-infection with both is common. The most common viral pathogens include respiratory syncytial virus (RSV), rhinovirus, adenovirus, influenza virus, and parainfluenza virus. The most common bacterial pathogens include Streptococcus pneumoniae, Haemophilus influenzae, Moraxella catarrhalis, and Streptococcus pyogenes.

      Clinical features of AOM include ear pain (otalgia), fever, a red or cloudy tympanic membrane, and a bulging tympanic membrane with loss of anatomical landmarks. In young children, symptoms may also include crying, grabbing or rubbing the affected ear, restlessness, and poor feeding.

      Most children with AOM will recover within 3 days without treatment. Serious complications are rare but can include persistent otitis media with effusion, recurrence of infection, temporary hearing loss, tympanic membrane perforation, labyrinthitis, mastoiditis, meningitis, intracranial abscess, sinus thrombosis, and facial nerve paralysis.

      Management of AOM involves determining whether admission to the hospital is necessary based on the severity of systemic infection or suspected acute complications. For patients who do not require admission, regular pain relief with paracetamol or ibuprofen is advised. Decongestants or antihistamines are not recommended. Antibiotics may be offered immediately for patients who are systemically unwell, have symptoms and signs of a more serious illness or condition, or have a high risk of complications. For other patients, a decision needs to be made on the antibiotic strategy, considering the rarity of acute complications and the possible adverse effects of antibiotics. Options include no antibiotic prescription with advice to seek medical help if symptoms worsen rapidly or significantly, a back-up antibiotic prescription to be used if symptoms do not improve within 3 days, or an immediate antibiotic prescription with advice to seek medical advice if symptoms worsen rapidly or significantly.

      The first-line antibiotic choice for AOM is a 5-7 day course of amoxicillin. For individuals allergic to or intolerant of penicillin, clarithromycin or erythromycin a 5–7 day course of clarithromycin or erythromycin (erythromycin is preferred in pregnant women).

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  • Question 23 - A 2-year-old girl is brought in by her father. She is experiencing pain...

    Incorrect

    • A 2-year-old girl is brought in by her father. She is experiencing pain in her left ear and has symptoms of a cold. Upon examination, her left eardrum appears red. She does not have a fever and is otherwise healthy. You diagnose her with acute otitis media.
      What would be a valid reason to prescribe antibiotics for this child?

      Your Answer:

      Correct Answer: Age less than 2 years

      Explanation:

      According to a Cochrane review conducted in 2008, it was discovered that approximately 80% of children experiencing acute otitis media were able to recover within a span of two days. However, the use of antibiotics only resulted in a reduction of pain for about 7% of children after the same two-day period. Furthermore, the administration of antibiotics did not show any significant impact on the rates of hearing loss, recurrence, or perforation. In cases where antibiotics are deemed necessary for children with otitis media, some indications include being under the age of two, experiencing discharge from the ear (otorrhoea), and having bilateral acute otitis media.

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  • Question 24 - A 28 year old male arrives at the emergency department with a complaint...

    Incorrect

    • A 28 year old male arrives at the emergency department with a complaint of a painful throat that began 5 days ago but has worsened significantly in the last 24 hours. The patient is experiencing difficulty in opening his mouth due to the pain. Upon examination, you determine that the patient is suffering from a peritonsillar abscess. What is the most probable causative organism in this case?

      Your Answer:

      Correct Answer: Streptococcus pyogenes

      Explanation:

      The most probable causative organism in a case of peritonsillar abscess is Streptococcus pyogenes.

      A peritonsillar abscess, also known as quinsy, is a collection of pus that forms between the palatine tonsil and the pharyngeal muscles. It is often a complication of acute tonsillitis and is most commonly seen in adolescents and young adults. The exact cause of a peritonsillar abscess is not fully understood, but it is believed to occur when infection spreads beyond the tonsillar capsule or when small salivary glands in the supratonsillar space become blocked.

      The most common causative organisms for a peritonsillar abscess include Streptococcus pyogenes, Staphylococcus aureus, Haemophilus influenzae, and anaerobic organisms. Risk factors for developing a peritonsillar abscess include smoking, periodontal disease, male sex, and a previous episode of the condition.

      Clinical features of a peritonsillar abscess include severe throat pain, difficulty opening the mouth (trismus), fever, headache, drooling of saliva, bad breath, painful swallowing, altered voice, ear pain on the same side, neck stiffness, and swelling of the soft palate. Diagnosis is usually made based on clinical presentation, but imaging scans such as CT or ultrasound may be used to assess for complications or determine the best site for drainage.

      Treatment for a peritonsillar abscess involves pain relief, intravenous antibiotics to cover for both aerobic and anaerobic organisms, intravenous fluids if swallowing is difficult, and drainage of the abscess either through needle aspiration or incision and drainage. Tonsillectomy may be recommended to prevent recurrence. Complications of a peritonsillar abscess can include sepsis, spread to deeper neck tissues leading to necrotizing fasciitis or retropharyngeal abscess, airway compromise, recurrence of the abscess, aspiration pneumonia, erosion into major blood vessels, and complications related to the causative organism. All patients with a peritonsillar abscess should be referred to an ear, nose, and throat specialist for further management.

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  • Question 25 - A 45-year-old presents to the emergency department complaining of occasional right-sided facial swelling...

    Incorrect

    • A 45-year-old presents to the emergency department complaining of occasional right-sided facial swelling over the past 3 days. The patient describes the swelling as uncomfortable and it occurs after eating a meal, but then goes away within an hour or so. The patient mentions that the swelling has gone down since arriving at the department. Upon examination, there is no visible redness or tenderness when the face is touched. The patient's vital signs are as follows:

      Blood pressure: 142/82 mmHg
      Pulse rate: 86 bpm
      Respiration rate: 15 bpm
      Temperature: 36.5ºC

      What is the probable diagnosis?

      Your Answer:

      Correct Answer: Sialolithiasis

      Explanation:

      Salivary gland stones often cause intermittent swelling that tends to worsen during meal times. This pattern of symptoms is indicative of Sialolithiasis, which refers to the presence of stones in the salivary glands. In cases of acute sialadenitis, the affected gland or duct would typically be enlarged and tender to touch, accompanied by signs of infection such as redness or fever. While mucoepidermoid carcinoma is the most common type of salivary gland cancer, malignant salivary gland tumors are rare. On the other hand, pleomorphic adenoma is the most common benign neoplasm of the salivary glands, with an incidence rate of approximately 2-3.5 cases per 100,000 population. However, it is important to note that salivary gland stones are much more common than tumors, with an annual incidence rate that is 10 times higher.

      Further Reading:

      Salivary gland disease refers to various conditions that affect the salivary glands, which are responsible for producing saliva. Humans have three pairs of major salivary glands, including the parotid, submandibular, and sublingual glands, as well as numerous minor salivary glands. These glands produce around 1 to 1.5 liters of saliva each day, which serves several functions such as moistening and lubricating the mouth, dissolving food, aiding in swallowing, and protecting the mucosal lining.

      There are several causes of salivary gland dysfunction, including infections (such as bacterial or viral infections like mumps), the presence of stones in the salivary ducts, benign or malignant tumors, dry mouth (xerostomia) due to medication, dehydration, or certain medical conditions like Sjögren’s syndrome, granulomatous diseases like sarcoidosis, and rare conditions like HIV-related lymphocytic infiltration. Mucoceles can also affect the minor salivary glands.

      Salivary gland stones, known as sialolithiasis, are the most common salivary gland disorder. They typically occur in adults between the ages of 30 and 60, with a higher incidence in males. These stones can develop within the salivary glands or their ducts, leading to obstruction and swelling of the affected gland. Risk factors for stones include certain medications, dehydration, gout, smoking, chronic periodontal disease, and hyperparathyroidism. Diagnosis of salivary gland stones can be made through imaging techniques such as X-ray, ultrasound, sialography, CT, or MRI. Management options include conservative measures like pain relief, antibiotics if there is evidence of infection, hydration, warm compresses, and gland massage. Invasive options may be considered if conservative management fails.

      Salivary gland infection, known as sialadenitis, can be caused by bacterial or viral pathogens. Decreased salivary flow, often due to factors like dehydration, malnutrition, immunosuppression, or certain medications, can contribute to the development of sialadenitis. Risk factors for sialadenitis include age over 40, recent dental procedures, Sjögren’s syndrome, immunosuppression, and conditions that decrease salivary flow. Staphylococcus aureus is the most common bacterial cause, while mumps is the most common viral cause. Ac

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  • Question 26 - A 35-year-old woman comes in with a painful swelling on the left side...

    Incorrect

    • A 35-year-old woman comes in with a painful swelling on the left side of her face. The pain and swelling appear to get worse before meals and then gradually improve after eating. During the examination, a solid lump can be felt in the submandibular region. There is no redness, and the patient has no fever and is in good overall health.
      What is the SINGLE most probable diagnosis?

      Your Answer:

      Correct Answer: Sialolithiasis

      Explanation:

      Sialolithiasis is a condition in which a calcified stone (sialolith) forms inside a salivary gland. The submandibular gland (Wharton’s duct) is the most common site, accounting for about 90% of cases, while the parotid gland is the second most affected. In rare instances, sialoliths can also develop in the sublingual gland or minor salivary glands.

      The presence of a sialolith obstructs the flow of saliva, leading to pain and swelling in the affected gland during eating. The pain is most intense when salivary flow is high, such as before and during meals, and gradually subsides within an hour after eating. By palpating the floor of the mouth with both hands, a stone may be detected, and sometimes it can even be seen at the opening of the duct. If there is an accompanying infection, pus may be expressed from the gland.

      To assess salivary flow, acidic foods like lemon juice can be used as a simple test. X-rays of the mouth’s floor can reveal the presence of a stone. Patients should be referred to an ear, nose, and throat specialist (ENT) for the removal of the stone.

      Sialadenitis refers to inflammation of the salivary glands and can be either acute or chronic. Acute sialadenitis is most commonly caused by a bacterial infection, usually ascending from Staphylococcus aureus or Streptococcus viridans. It can occur as a result of sialolithiasis or poor oral hygiene. Clinically, there will be a painful swelling in the affected gland area, with redness of the overlying skin and potential swelling of the cheek and nearby regions. Patients often experience general malaise, with a low-grade fever and elevated inflammatory markers.

      Parotitis, on the other hand, refers to inflammation of one or both parotid glands. This inflammation can be caused by bacteria (particularly Staphylococcus aureus), viruses (such as mumps), or tuberculosis.

      Sjögren’s syndrome is an autoimmune disorder characterized by dry eyes and dry mouth.

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  • Question 27 - A 60-year-old woman presents with a nosebleed that started after sneezing 20 minutes...

    Incorrect

    • A 60-year-old woman presents with a nosebleed that started after sneezing 20 minutes ago. She is currently using tissues to catch the drips and you have been asked to see her urgently by the triage nurse. Her vital signs are stable, and she has no signs of low blood pressure. You assess the patient and recommend applying firm pressure to the soft, cartilaginous part of the nose for at least 10 minutes.
      What is the most effective measure to help stop the bleeding?

      Your Answer:

      Correct Answer: Sucking an ice cube

      Explanation:

      When assessing a patient with epistaxis (nosebleed), it is important to start with a standard ABC assessment, focusing on the airway and hemodynamic status. Even if the bleeding appears to have stopped, it is crucial to evaluate the patient’s condition. If active bleeding is still present and there are signs of hemodynamic compromise, immediate resuscitative and first aid measures should be initiated.

      Epistaxis should be treated as a circulatory emergency, especially in elderly patients, those with clotting disorders or bleeding tendencies, and individuals taking anticoagulants. In these cases, it is necessary to establish intravenous access using at least an 18-gauge (green) cannula. Blood samples, including a full blood count, urea and electrolytes, clotting profile, and group and save (depending on the amount of blood loss), should be sent for analysis. Patients should be assigned to a majors or closely observed area, as dislodgement of a blood clot can lead to severe bleeding.

      First aid measures to control bleeding include the following steps:
      1. The patient should be seated upright with their body tilted forward and their mouth open. Lying down should be avoided, unless the patient feels faint or there is evidence of hemodynamic compromise. Leaning forward helps reduce the flow of blood into the nasopharynx.
      2. The patient should be encouraged to spit out any blood that enters the throat and advised not to swallow it.
      3. Firmly pinch the soft, cartilaginous part of the nose, compressing the nostrils for 10-15 minutes. Pressure should not be released, and the patient should breathe through their mouth.
      4. If the patient is unable to comply, an alternative technique is to ask a relative, staff member, or use an external pressure device like a swimmer’s nose clip.
      5. It is important to dispel the misconception that compressing the bones will help stop the bleeding. Applying ice to the neck or forehead does not influence nasal blood flow. However, sucking on an ice cube or applying an ice pack directly to the nose may reduce nasal blood flow.

      If bleeding stops with first aid measures, it is recommended to apply a topical antiseptic preparation to reduce crusting and vestibulitis. Naseptin cream (containing chlorhexidine and neomycin) is commonly used and should be applied to the nostrils four times daily for 10 days.

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  • Question 28 - A middle-aged individual comes in with hearing loss on one side, ringing in...

    Incorrect

    • A middle-aged individual comes in with hearing loss on one side, ringing in the ears, dizziness, and numbness in the face. An MRI scan shows the presence of an acoustic neuroma.
      Which of the following nerves is the LEAST likely to be affected?

      Your Answer:

      Correct Answer: Trochlear nerve

      Explanation:

      An acoustic neuroma, also referred to as a vestibular schwannoma, is a slow-growing tumor that develops from the Schwann cells of the vestibulocochlear nerve (8th cranial nerve). These growths are typically found at the cerebellopontine angle or within the internal auditory canal.

      The most commonly affected nerves are the vestibulocochlear and trigeminal nerves. Patients typically present with a gradual deterioration of hearing in one ear, along with numbness and tingling in the face, ringing in the ears, and episodes of dizziness. Additionally, some patients may have a history of headaches. In rare cases, the facial nerve, glossopharyngeal nerve, vagus nerve, or accessory nerve may also be affected.

      It is important to note that the trochlear nerve, which passes through the superior orbital fissure, is not impacted by an acoustic neuroma.

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  • Question 29 - A 3 year old girl who recently moved to the UK from Sierra...

    Incorrect

    • A 3 year old girl who recently moved to the UK from Sierra Leone is brought to the emergency department by her mother. The child developed a fever and a sore throat yesterday but today her condition has worsened. Upon examination, the patient is sitting forward, drooling, and there is a noticeable high-pitched breathing noise during inspiration. Additionally, the child's voice sounds muffled when she speaks to her mother. The patient's temperature is 38.8ºC and her pulse rate is 130 bpm.

      What is the most likely organism responsible for causing this patient's symptoms?

      Your Answer:

      Correct Answer: Haemophilus influenzae type B

      Explanation:

      The most likely organism responsible for causing this patient’s symptoms is Haemophilus influenzae type B. This is indicated by the patient’s symptoms of fever, sore throat, high-pitched breathing noise during inspiration, and muffled voice. These symptoms are consistent with epiglottitis, which is a severe infection of the epiglottis caused by Haemophilus influenzae type B. This bacterium is known to cause respiratory tract infections, and it is particularly common in young children.

      Further Reading:

      Epiglottitis is a rare but serious condition characterized by inflammation and swelling of the epiglottis, which can lead to a complete blockage of the airway. It is more commonly seen in children between the ages of 2-6, but can also occur in adults, particularly those in their 40s and 50s. Streptococcus infections are now the most common cause of epiglottitis in the UK, although other bacterial agents, viruses, fungi, and iatrogenic causes can also be responsible.

      The clinical features of epiglottitis include a rapid onset of symptoms, high fever, sore throat, painful swallowing, muffled voice, stridor and difficulty breathing, drooling of saliva, irritability, and a characteristic tripod positioning with the arms forming the front two legs of the tripod. It is important for healthcare professionals to avoid examining the throat or performing any potentially upsetting procedures until the airway has been assessed and secured.

      Diagnosis of epiglottitis is typically made through fibre-optic laryngoscopy, which is considered the gold standard investigation. Lateral neck X-rays may also show a characteristic thumb sign, indicating an enlarged and swollen epiglottis. Throat swabs and blood cultures may be taken once the airway is secured to identify the causative organism.

      Management of epiglottitis involves assessing and securing the airway as the top priority. Intravenous or oral antibiotics are typically prescribed, and supplemental oxygen may be given if intubation or tracheostomy is planned. In severe cases where the airway is significantly compromised, intubation or tracheostomy may be necessary. Steroids may also be used, although the evidence for their benefit is limited.

      Overall, epiglottitis is a potentially life-threatening condition that requires urgent medical attention. Prompt diagnosis, appropriate management, and securing the airway are crucial in ensuring a positive outcome for patients with this condition.

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  • Question 30 - You are requested to evaluate a 75-year-old individual who has been examined by...

    Incorrect

    • You are requested to evaluate a 75-year-old individual who has been examined by a medical student. The patient complained of swelling on one side of the face, and the medical student has tentatively diagnosed it as a salivary gland stone. Where is the most frequent location for salivary gland stones to occur?

      Your Answer:

      Correct Answer: Wharton's duct

      Explanation:

      This area contains stones made of stone. The parotid duct opens into the vestibule of the mouth, specifically between the cheek and gums, at a spot called the parotid papilla. This papilla is located across from the second upper molar tooth.
      The sublingual gland is drained by a series of 8-20 excretory ducts known as the ducts of Rivinus. The largest duct in this system is called Bartholin’s duct. It is worth noting that stones in the sublingual gland are extremely rare.

      Further Reading:

      Salivary gland disease refers to various conditions that affect the salivary glands, which are responsible for producing saliva. Humans have three pairs of major salivary glands, including the parotid, submandibular, and sublingual glands, as well as numerous minor salivary glands. These glands produce around 1 to 1.5 liters of saliva each day, which serves several functions such as moistening and lubricating the mouth, dissolving food, aiding in swallowing, and protecting the mucosal lining.

      There are several causes of salivary gland dysfunction, including infections (such as bacterial or viral infections like mumps), the presence of stones in the salivary ducts, benign or malignant tumors, dry mouth (xerostomia) due to medication, dehydration, or certain medical conditions like Sjögren’s syndrome, granulomatous diseases like sarcoidosis, and rare conditions like HIV-related lymphocytic infiltration. Mucoceles can also affect the minor salivary glands.

      Salivary gland stones, known as sialolithiasis, are the most common salivary gland disorder. They typically occur in adults between the ages of 30 and 60, with a higher incidence in males. These stones can develop within the salivary glands or their ducts, leading to obstruction and swelling of the affected gland. Risk factors for stones include certain medications, dehydration, gout, smoking, chronic periodontal disease, and hyperparathyroidism. Diagnosis of salivary gland stones can be made through imaging techniques such as X-ray, ultrasound, sialography, CT, or MRI. Management options include conservative measures like pain relief, antibiotics if there is evidence of infection, hydration, warm compresses, and gland massage. Invasive options may be considered if conservative management fails.

      Salivary gland infection, known as sialadenitis, can be caused by bacterial or viral pathogens. Decreased salivary flow, often due to factors like dehydration, malnutrition, immunosuppression, or certain medications, can contribute to the development of sialadenitis. Risk factors for sialadenitis include age over 40, recent dental procedures, Sjögren’s syndrome, immunosuppression, and conditions that decrease salivary flow. Staphylococcus aureus is the most common bacterial cause, while mumps is the most common viral cause. Ac

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  • Question 31 - A 35 year old individual arrives at the clinic with sudden vertigo that...

    Incorrect

    • A 35 year old individual arrives at the clinic with sudden vertigo that started within the last day. You suspect the presence of vestibular neuronitis. What characteristics would you anticipate in a patient with vestibular neuronitis?

      Your Answer:

      Correct Answer: Nystagmus with fast phase away from the affected ear

      Explanation:

      Vestibular neuronitis does not typically cause hearing loss, tinnitus, or focal neurological deficits. However, it is characterized by the presence of nystagmus, which is a rapid, involuntary eye movement. In vestibular neuronitis, nystagmus is usually fine horizontal or mixed horizontal-torsional. It consistently beats in the same direction, regardless of head rotation, and can be reduced when focusing on a fixed point.

      Further Reading:

      Vestibular neuritis, also known as vestibular neuronitis, is a condition characterized by sudden and prolonged vertigo of peripheral origin. It is believed to be caused by inflammation of the vestibular nerve, often following a viral infection. It is important to note that vestibular neuritis and labyrinthitis are not the same condition, as labyrinthitis involves inflammation of the labyrinth. Vestibular neuritis typically affects individuals between the ages of 30 and 60, with a 1:1 ratio of males to females. The annual incidence is approximately 3.5 per 100,000 people, making it one of the most commonly diagnosed causes of vertigo.

      Clinical features of vestibular neuritis include nystagmus, which is a rapid, involuntary eye movement, typically in a horizontal or horizontal-torsional direction away from the affected ear. The head impulse test may also be positive. Other symptoms include spontaneous onset of rotational vertigo, which is worsened by changes in head position, as well as nausea, vomiting, and unsteadiness. These severe symptoms usually last for 2-3 days, followed by a gradual recovery over a few weeks. It is important to note that hearing is not affected in vestibular neuritis, and symptoms such as tinnitus and focal neurological deficits are not present.

      Differential diagnosis for vestibular neuritis includes benign paroxysmal positional vertigo (BPPV), labyrinthitis, Meniere’s disease, migraine, stroke, and cerebellar lesions. Management of vestibular neuritis involves drug treatment for nausea and vomiting associated with vertigo, typically through short courses of medication such as prochlorperazine or cyclizine. If symptoms are severe and fluids cannot be tolerated, admission and administration of IV fluids may be necessary. General advice should also be given, including avoiding driving while symptomatic, considering the suitability to work based on occupation and duties, and the increased risk of falls. Follow-up is required, and referral is necessary if there are atypical symptoms, symptoms do not improve after a week of treatment, or symptoms persist for more than 6 weeks.

      The prognosis for vestibular neuritis is generally good, with the majority of individuals fully recovering within 6 weeks. Recurrence is thought to occur in 2-11% of cases, and approximately 10% of individuals may develop BPPV following an episode of vestibular neuritis. A very rare complication of vestibular neuritis is ph

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  • Question 32 - You evaluate a 60-year-old man who has a past medical history of hearing...

    Incorrect

    • You evaluate a 60-year-old man who has a past medical history of hearing impairment.
      Which ONE statement is accurate regarding the tuning fork hearing tests conducted?

      Your Answer:

      Correct Answer: A false negative Rinne’s test can occur if the patient has a severe sensorineural deficit

      Explanation:

      A 512 Hz tuning fork is commonly used for both the Rinne’s and Weber’s tests. However, a lower-pitched 128 Hz tuning fork is typically used to assess vibration sense in a peripheral nervous system examination. While a 256 Hz tuning fork can be used for either test, it is considered less reliable.

      To perform the Rinne’s test, the 512 Hz tuning fork is first made to vibrate and then placed on the mastoid process until the sound is no longer heard. Next, the top of the tuning fork is positioned 2 cm away from the external auditory meatus, and the patient is asked to indicate where they hear the sound loudest.

      In individuals with normal hearing, the tuning fork should still be audible outside the external auditory canal even after it is no longer appreciated on the mastoid. This is because air conduction should be greater than bone conduction.

      In cases of conductive hearing loss, the patient will no longer hear the tuning fork once it is no longer appreciated on the mastoid. This suggests that their bone conduction is greater than their air conduction, indicating an obstruction in the passage of sound waves through the ear canal to the cochlea. This is considered a true negative result.

      However, a Rinne’s test may yield a false negative result if the patient has a severe unilateral sensorineural deficit and senses the sound in the unaffected ear through the transmission of sound waves through the base of the skull.

      In sensorineural hearing loss, the ability to perceive the tuning fork on both the mastoid and outside the external auditory canal is equally diminished compared to the opposite ear. The sound will disappear earlier on the mastoid and outside the external auditory canal compared to the other ear, but it will still be heard outside the canal.

      To perform the Weber’s test, the 512 Hz tuning fork is made to vibrate and then placed on the center of the patient’s forehead. The patient is then asked if they perceive the sound in the middle of the forehead or if it lateralizes to one side or the other.

      If the sound lateralizes to one side, it can indicate either ipsilateral conductive hearing loss or contralateral sensorineural hearing loss.

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  • Question 33 - A 37 year old male comes to the emergency department with complaints of...

    Incorrect

    • A 37 year old male comes to the emergency department with complaints of vertigo and tinnitus on the right side for the last 3 hours. You suspect Meniere's disease. What is the most accurate description of the pathophysiology of Meniere's disease?

      Your Answer:

      Correct Answer: Excessive endolymphatic pressure & dilation of the membranous labyrinth

      Explanation:

      Meniere’s disease is a condition that affects the inner ear and its cause is still unknown. It is believed to occur due to increased pressure and gradual enlargement of the endolymphatic system in the middle ear, also known as the membranous labyrinth.

      Further Reading:

      Meniere’s disease is a disorder of the inner ear that is characterized by recurrent episodes of vertigo, tinnitus, and low frequency hearing loss. The exact cause of the disease is unknown, but it is believed to be related to excessive pressure and dilation of the endolymphatic system in the middle ear. Meniere’s disease is more common in middle-aged adults, but can occur at any age and affects both men and women equally.

      The clinical features of Meniere’s disease include episodes of vertigo that can last from minutes to hours. These attacks often occur in clusters, with several episodes happening in a week. Vertigo is usually the most prominent symptom, but patients may also experience a sensation of aural fullness or pressure. Nystagmus and a positive Romberg test are common findings, and the Fukuda stepping test may also be positive. While symptoms are typically unilateral, bilateral symptoms may develop over time.

      Rinne’s and Weber’s tests can be used to help diagnose Meniere’s disease. In Rinne’s test, air conduction should be better than bone conduction in both ears. In Weber’s test, the sound should be heard loudest in the unaffected (contralateral) side due to the sensorineural hearing loss.

      The natural history of Meniere’s disease is that symptoms often resolve within 5-10 years, but most patients are left with some residual hearing loss. Psychological distress is common among patients with this condition.

      The diagnostic criteria for Meniere’s disease include clinical features consistent with the disease, confirmed sensorineural hearing loss on audiometry, and exclusion of other possible causes.

      Management of Meniere’s disease involves an ENT assessment to confirm the diagnosis and perform audiometry. Patients should be advised to inform the DVLA and may need to cease driving until their symptoms are under control. Acute attacks can be treated with buccal or intramuscular prochlorperazine, and hospital admission may be necessary in some cases. Betahistine may be beneficial for prevention of symptoms.

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  • Question 34 - A 7-year-old boy presents with a sore throat and a dry cough that...

    Incorrect

    • A 7-year-old boy presents with a sore throat and a dry cough that has been present for five days. He has no medical history of note, takes no medication and reports no known drug allergies. On examination, he is febrile with a temperature of 38.5°C and has a few tender anterior cervical lymph nodes. His throat and tonsils appear red and inflamed, and you can see copious exudate on his right tonsil.
      Using the FeverPAIN Score to assess his sore throat, which of the following would be the MOST APPROPRIATE management for him at this stage?

      Your Answer:

      Correct Answer: She should be offered a 'back-up prescription' for penicillin V

      Explanation:

      The FeverPAIN score is a scoring system recommended by the current NICE guidelines for assessing acute sore throats. It consists of five items: fever in the last 24 hours, purulence, attendance within three days, inflamed tonsils, and no cough or coryza. Based on the score, recommendations for antibiotic use are as follows: a score of 0-1 indicates an unlikely streptococcal infection, with antibiotics not recommended; a score of 2-3 suggests a 34-40% chance of streptococcus, and delayed prescribing of antibiotics may be considered; a score of 4 or higher indicates a 62-65% chance of streptococcus, and immediate antibiotic use is recommended for severe cases, or a short back-up prescription may be given for 48 hours.

      The Fever PAIN score was developed through a study involving 1760 adults and children aged three and over. It was tested in a trial comparing three prescribing strategies: empirical delayed prescribing, score-directed prescribing, and a combination of the score with a near-patient test (NPT) for streptococcus. The use of the score resulted in faster symptom resolution and reduced antibiotic prescribing by one third. The addition of the NPT did not provide any additional benefit.

      According to the current NICE guidelines, if antibiotics are necessary, phenoxymethylpenicillin is recommended as the first-choice antibiotic. In cases of true penicillin allergy, clarithromycin can be used as an alternative. For pregnant women with a penicillin allergy, erythromycin is prescribed. It is important to note that the threshold for prescribing antibiotics should be lower for individuals at risk of rheumatic fever and vulnerable groups managed in primary care, such as infants, the elderly, and those who are immunosuppressed or immunocompromised. Antibiotics should not be withheld if the person has severe symptoms and there are concerns about their clinical condition.

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  • Question 35 - A 7-year-old girl is brought to the Emergency Department by her father with...

    Incorrect

    • A 7-year-old girl is brought to the Emergency Department by her father with a high temperature and pain in her ear. During the examination, you observe that the mastoid area is red and there is a soft, painful lump in the same spot. You diagnose her with acute mastoiditis, start her on intravenous antibiotics, and refer her to the ENT team on duty.
      Which section of the temporal bone is affected in this situation?

      Your Answer:

      Correct Answer: Petrous part

      Explanation:

      Mastoiditis occurs when a suppurative infection spreads from otitis media, affecting the middle ear, to the mastoid antrum. This infection causes inflammation in the mastoid and surrounding tissues, potentially leading to damage to the bone.

      The mastoid antrum, also known as the tympanic antrum, is an air space located in the petrous part of the temporal bone. It connects to the mastoid cells at the back and the epitympanic recess through the aditus to the mastoid antrum.

      The mastoid cells come in different types, varying in number and size. There are cellular cells with thin septa, diploeic cells that are marrow spaces with few air cells, and acellular cells that are neither cells nor marrow spaces.

      These air spaces serve various functions, including acting as sound receptors, providing voice resonance, offering acoustic insulation and dissipation, protecting against physical damage, and reducing the weight of the cranium.

      Overall, mastoiditis occurs when an infection from otitis media spreads to the mastoid antrum, causing inflammation and potential damage to the surrounding tissues and bone. The mastoid antrum and mastoid air cells within the temporal bone play important roles in sound reception, voice resonance, protection, and reducing cranial mass.

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  • Question 36 - A 2-year-old girl presents with a barking cough. You suspect croup as the...

    Incorrect

    • A 2-year-old girl presents with a barking cough. You suspect croup as the diagnosis.

      Which SINGLE statement regarding croup is true?

      Your Answer:

      Correct Answer: There is often a prodromal illness for 1-2 days before stridor begins

      Explanation:

      Croup, also known as laryngo-tracheo-bronchitis, is typically caused by the parainfluenza virus. Other viruses such as rhinovirus, influenza, and respiratory syncytial viruses can also be responsible. Before the onset of stridor, there is often a mild cold-like illness that lasts for 1-2 days. Symptoms usually reach their peak within 1-3 days, with the cough often being more troublesome at night. A milder cough may persist for another 7-10 days.

      Since croup is caused by a viral infection, antibiotics are not effective unless there is a suspicion of a secondary bacterial infection. It is important to note that sedation should not be used in a child experiencing respiratory distress. To reduce airway swelling, dexamethasone and prednisolone are commonly prescribed, although they do not shorten the duration of the illness. In severe cases, nebulized adrenaline can be administered.

      A barking cough is a characteristic symptom of croup, but it does not necessarily indicate the severity of the condition. Hospitalization for croup is rare and typically reserved for children who show worsening respiratory distress or signs of drowsiness/agitation.

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  • Question 37 - A 2 year old girl is brought to the emergency department by her...

    Incorrect

    • A 2 year old girl is brought to the emergency department by her father. The child developed a high fever and a sore throat yesterday but today her condition has worsened. You observe that the patient is from a nomadic community and has not received any immunizations. During the examination, you notice that the patient is sitting upright, drooling, and has audible stridor with visible moderate chest retractions. What is the most suitable initial approach to managing this patient?

      Your Answer:

      Correct Answer: Call and await senior ENT and anaesthetic support

      Explanation:

      The top priority when dealing with suspected epiglottitis is to assess and secure the airway. This is especially important in patients who have not been vaccinated against Haemophilus influenzae type b (HiB), as they are at risk for complications from this infection. Classic signs of epiglottitis include tripod positioning, drooling, stridor, and a muffled voice. It is crucial to avoid agitating patients, particularly children, during examination or procedures, as this can trigger laryngospasm and potentially lead to airway obstruction. In such cases, it is recommended to call in senior ENT and anaesthetic support to perform laryngoscopy and be prepared for intubation or tracheostomy if necessary to address any airway compromise. If the patient is in a critical condition, securing the airway through intubation becomes the top priority.

      Further Reading:

      Epiglottitis is a rare but serious condition characterized by inflammation and swelling of the epiglottis, which can lead to a complete blockage of the airway. It is more commonly seen in children between the ages of 2-6, but can also occur in adults, particularly those in their 40s and 50s. Streptococcus infections are now the most common cause of epiglottitis in the UK, although other bacterial agents, viruses, fungi, and iatrogenic causes can also be responsible.

      The clinical features of epiglottitis include a rapid onset of symptoms, high fever, sore throat, painful swallowing, muffled voice, stridor and difficulty breathing, drooling of saliva, irritability, and a characteristic tripod positioning with the arms forming the front two legs of the tripod. It is important for healthcare professionals to avoid examining the throat or performing any potentially upsetting procedures until the airway has been assessed and secured.

      Diagnosis of epiglottitis is typically made through fibre-optic laryngoscopy, which is considered the gold standard investigation. Lateral neck X-rays may also show a characteristic thumb sign, indicating an enlarged and swollen epiglottis. Throat swabs and blood cultures may be taken once the airway is secured to identify the causative organism.

      Management of epiglottitis involves assessing and securing the airway as the top priority. Intravenous or oral antibiotics are typically prescribed, and supplemental oxygen may be given if intubation or tracheostomy is planned. In severe cases where the airway is significantly compromised, intubation or tracheostomy may be necessary. Steroids may also be used, although the evidence for their benefit is limited.

      Overall, epiglottitis is a potentially life-threatening condition that requires urgent medical attention. Prompt diagnosis, appropriate management, and securing the airway are crucial in ensuring a positive outcome for patients with this condition.

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  • Question 38 - A 4 year old is brought into the emergency department by worried parents....

    Incorrect

    • A 4 year old is brought into the emergency department by worried parents. The child has been pulling at his right ear and has been fussy and crying for the past day. During the examination, you observe that the child has a temperature of 38.9ºC and there is redness over the mastoid. You suspect mastoiditis. What is the most probable causative bacteria?

      Your Answer:

      Correct Answer: Streptococcus pneumoniae

      Explanation:

      The most commonly found organism in patients with mastoiditis is Streptococcus pneumoniae.

      Further Reading:

      Mastoiditis is an infection of the mastoid air cells, which are located in the mastoid process of the skull. It is usually caused by the spread of infection from the middle ear. The most common organism responsible for mastoiditis is Streptococcus pneumoniae, but other bacteria and fungi can also be involved. The infection can spread to surrounding structures, such as the meninges, causing serious complications like meningitis or cerebral abscess.

      Mastoiditis can be classified as acute or chronic. Acute mastoiditis is a rare complication of acute otitis media, which is inflammation of the middle ear. It is characterized by severe ear pain, fever, swelling and redness behind the ear, and conductive deafness. Chronic mastoiditis is usually associated with chronic suppurative otitis media or cholesteatoma and presents with recurrent episodes of ear pain, headache, and fever.

      Mastoiditis is more common in children, particularly those between 6 and 13 months of age. Other risk factors include immunocompromised patients, those with intellectual impairment or communication difficulties, and individuals with cholesteatoma.

      Diagnosis of mastoiditis involves a physical examination, blood tests, ear swab for culture and sensitivities, and imaging studies like contrast-enhanced CT or MRI. Treatment typically involves referral to an ear, nose, and throat specialist, broad-spectrum intravenous antibiotics, pain relief, and myringotomy (a procedure to drain fluid from the middle ear).

      Complications of mastoiditis are rare but can be serious. They include intracranial abscess, meningitis, subperiosteal abscess, neck abscess, venous sinus thrombosis, cranial nerve palsies, hearing loss, labyrinthitis, extension to the zygoma, and carotid artery arteritis. However, most patients with mastoiditis have a good prognosis and do not experience long-term ear problems.

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  • Question 39 - A 45-year-old patient comes to the emergency department with a complaint of increasing...

    Incorrect

    • A 45-year-old patient comes to the emergency department with a complaint of increasing hearing loss in the right ear over the past few months. During the examination, tuning fork tests are performed. Weber's test shows lateralization to the left side, and Rinne's testing is positive in both ears.

      Based on this assessment, which of the following diagnoses is most likely?

      Your Answer:

      Correct Answer: Acoustic neuroma

      Explanation:

      Based on the assessment findings, the most likely diagnosis for the 45-year-old patient with increasing hearing loss in the right ear is an acoustic neuroma. This is suggested by the lateralization of Weber’s test to the left side, indicating that sound is being heard better in the left ear. Additionally, the positive Rinne’s test in both ears suggests that air conduction is better than bone conduction, which is consistent with an acoustic neuroma. Other possible diagnoses such as otosclerosis, otitis media, cerumen impaction, and tympanic membrane perforation are less likely based on the given information.

      Further Reading:

      Hearing loss is a common complaint that can be caused by various conditions affecting different parts of the ear and nervous system. The outer ear is the part of the ear outside the eardrum, while the middle ear is located between the eardrum and the cochlea. The inner ear is within the bony labyrinth and consists of the vestibule, semicircular canals, and cochlea. The vestibulocochlear nerve connects the inner ear to the brain.

      Hearing loss can be classified based on severity, onset, and type. Severity is determined by the quietest sound that can be heard, measured in decibels. It can range from mild to profound deafness. Onset can be sudden, rapidly progressive, slowly progressive, or fluctuating. Type of hearing loss can be either conductive or sensorineural. Conductive hearing loss is caused by issues in the external ear, eardrum, or middle ear that disrupt sound transmission. Sensorineural hearing loss is caused by problems in the cochlea, auditory nerve, or higher auditory processing pathways.

      To diagnose sensorineural and conductive deafness, a 512 Hz tuning fork is used to perform Rinne and Weber’s tests. These tests help determine the type of hearing loss based on the results. In Rinne’s test, air conduction (AC) and bone conduction (BC) are compared, while Weber’s test checks for sound lateralization.

      Cholesteatoma is a condition characterized by the abnormal accumulation of skin cells in the middle ear or mastoid air cell spaces. It is believed to develop from a retraction pocket that traps squamous cells. Cholesteatoma can cause the accumulation of keratin and the destruction of adjacent bones and tissues due to the production of destructive enzymes. It can lead to mixed sensorineural and conductive deafness as it affects both the middle and inner ear.

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  • Question 40 - A 25 year old male presents to the emergency department complaining of a...

    Incorrect

    • A 25 year old male presents to the emergency department complaining of a sore throat and fever that has been bothering him for the past 2 days. The patient is specifically asking for a prescription for antibiotics. Which scoring system would be the most suitable for evaluating the patient's requirement for antibiotics?

      Your Answer:

      Correct Answer: FeverPAIN

      Explanation:

      The FeverPAIN score is a clinical scoring system that helps determine the probability of streptococcal infection and the necessity of antibiotic treatment. NICE recommends using either the CENTOR or FeverPAIN clinical scoring systems to assess the likelihood of streptococcal infection and the need for antibiotics. The RSI score is utilized to evaluate laryngopharyngeal reflux, while the CSMCPI is employed to predict clinical outcomes in patients with upper gastrointestinal bleeding. Lastly, the Mallampati score is used to assess the oropharyngeal space and predict the difficulty of endotracheal intubation.

      Further Reading:

      Pharyngitis and tonsillitis are common conditions that cause inflammation in the throat. Pharyngitis refers to inflammation of the oropharynx, which is located behind the soft palate, while tonsillitis refers to inflammation of the tonsils. These conditions can be caused by a variety of pathogens, including viruses and bacteria. The most common viral causes include rhinovirus, coronavirus, parainfluenza virus, influenza types A and B, adenovirus, herpes simplex virus type 1, and Epstein Barr virus. The most common bacterial cause is Streptococcus pyogenes, also known as Group A beta-hemolytic streptococcus (GABHS). Other bacterial causes include Group C and G beta-hemolytic streptococci and Fusobacterium necrophorum.

      Group A beta-hemolytic streptococcus is the most concerning pathogen as it can lead to serious complications such as rheumatic fever and glomerulonephritis. These complications can occur due to an autoimmune reaction triggered by antigen/antibody complex formation or from cell damage caused by bacterial exotoxins.

      When assessing a patient with a sore throat, the clinician should inquire about the duration and severity of the illness, as well as associated symptoms such as fever, malaise, headache, and joint pain. It is important to identify any red flags and determine if the patient is immunocompromised. Previous non-suppurative complications of Group A beta-hemolytic streptococcus infection should also be considered, as there is an increased risk of further complications with subsequent infections.

      Red flags that may indicate a more serious condition include severe pain, neck stiffness, or difficulty swallowing. These symptoms may suggest epiglottitis or a retropharyngeal abscess, which require immediate attention.

      To determine the likelihood of a streptococcal infection and the need for antibiotic treatment, two scoring systems can be used: CENTOR and FeverPAIN. The CENTOR criteria include tonsillar exudate, tender anterior cervical lymphadenopathy or lymphadenitis, history of fever, and absence of cough. The FeverPAIN criteria include fever, purulence, rapid onset of symptoms, severely inflamed tonsils, and absence of cough or coryza. Based on the scores from these criteria, the likelihood of a streptococcal infection can be estimated, and appropriate management can be undertaken. can

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  • Question 41 - A 45-year-old man presents with a history of gradually worsening left-sided hearing loss...

    Incorrect

    • A 45-year-old man presents with a history of gradually worsening left-sided hearing loss and tinnitus. He also reports occasional episodes of dizziness. During the examination, his hearing is significantly reduced in the left ear, and the Weber's test shows lateralization to the right. Additionally, he experiences tingling sensations on the left side of his face and has decreased sensation on that side. The rest of his cranial nerve examination appears normal.

      What is the SINGLE most probable diagnosis?

      Your Answer:

      Correct Answer: Vestibular schwannoma

      Explanation:

      This patient has come in with a past medical history of hearing loss and ringing in the ears on the right side, along with a nerve problem in the right trigeminal nerve. These symptoms are consistent with a growth in the cerebellopontine angle, such as a vestibular schwannoma (also known as an acoustic neuroma).

      A vestibular schwannoma typically affects the 5th and 8th cranial nerves and is known to present with the following symptoms:

      – Gradually worsening hearing loss on one side
      – Numbness and tingling in the face
      – Ringing in the ears
      – Dizziness

      In some cases, the patient may also have a history of headaches, and in rare instances, the 7th, 9th, and 10th cranial nerves may be affected.

      It is recommended that this patient be referred to an ear, nose, and throat specialist or a neurosurgeon for further evaluation, which may include an MRI scan. The main treatment options for vestibular schwannoma include surgery, radiotherapy, and stereotactic radiosurgery.

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  • Question 42 - A 2 year old is brought to the emergency department by his father...

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    • A 2 year old is brought to the emergency department by his father due to a 24 hour history of worsening left sided otalgia and high temperature. During examination, a bulging red tympanic membrane is observed and acute otitis media is diagnosed.

      What is the most probable causative organism in this case?

      Your Answer:

      Correct Answer: Streptococcus pneumoniae

      Explanation:

      The most probable causative organism in this case is Streptococcus pneumoniae. This bacterium is a common cause of acute otitis media, especially in young children. It is known to cause infection in the middle ear, leading to symptoms such as ear pain (otalgia), fever, and a red, bulging tympanic membrane. Other organisms such as Escherichia coli, Candida albicans, Pseudomonas aeruginosa, and Staphylococcus aureus can also cause ear infections, but Streptococcus pneumoniae is the most likely culprit in this particular case.

      Further Reading:

      Acute otitis media (AOM) is an inflammation in the middle ear accompanied by symptoms and signs of an ear infection. It is commonly seen in young children below 4 years of age, with the highest incidence occurring between 9 to 15 months of age. AOM can be caused by viral or bacterial pathogens, and co-infection with both is common. The most common viral pathogens include respiratory syncytial virus (RSV), rhinovirus, adenovirus, influenza virus, and parainfluenza virus. The most common bacterial pathogens include Streptococcus pneumoniae, Haemophilus influenzae, Moraxella catarrhalis, and Streptococcus pyogenes.

      Clinical features of AOM include ear pain (otalgia), fever, a red or cloudy tympanic membrane, and a bulging tympanic membrane with loss of anatomical landmarks. In young children, symptoms may also include crying, grabbing or rubbing the affected ear, restlessness, and poor feeding.

      Most children with AOM will recover within 3 days without treatment. Serious complications are rare but can include persistent otitis media with effusion, recurrence of infection, temporary hearing loss, tympanic membrane perforation, labyrinthitis, mastoiditis, meningitis, intracranial abscess, sinus thrombosis, and facial nerve paralysis.

      Management of AOM involves determining whether admission to the hospital is necessary based on the severity of systemic infection or suspected acute complications. For patients who do not require admission, regular pain relief with paracetamol or ibuprofen is advised. Decongestants or antihistamines are not recommended. Antibiotics may be offered immediately for patients who are systemically unwell, have symptoms and signs of a more serious illness or condition, or have a high risk of complications. For other patients, a decision needs to be made on the antibiotic strategy, considering the rarity of acute complications and the possible adverse effects of antibiotics. Options include no antibiotic prescription with advice to seek medical help if symptoms worsen rapidly or significantly, a back-up antibiotic prescription to be used if symptoms do not improve within 3 days, or an immediate antibiotic prescription with advice to seek medical advice if symptoms worsen rapidly or significantly.

      The first-line antibiotic choice for AOM is a 5-7 day course of amoxicillin. For individuals allergic to or intolerant of penicillin, clarithromycin or erythromycin a 5–7 day course of clarithromycin or erythromycin (erythromycin is preferred in pregnant women).

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  • Question 43 - A 62-year-old man presents with severe otalgia in his right ear that has...

    Incorrect

    • A 62-year-old man presents with severe otalgia in his right ear that has been gradually worsening over the past few weeks. He describes the pain as being ‘unrelenting’, and he has been unable to sleep for several nights. His family have noticed that the right side of his face appears to be ‘drooping’. His past medical history includes poorly controlled type 2 diabetes mellitus. On examination, he has a right-sided lower motor neuron facial nerve palsy. His right ear canal is very swollen and purulent exudate is visible.
      Which of the following is the MOST important investigation to perform?

      Your Answer:

      Correct Answer: Contrast-enhanced CT head

      Explanation:

      Malignant otitis externa (MOE), also known as necrotizing otitis externa, is a rare form of ear canal infection that primarily affects elderly diabetic patients, particularly those with poorly controlled diabetes.

      MOE initially infects the ear canal and gradually spreads to the surrounding bony structures and soft tissues. In 98% of cases, the responsible pathogen is Pseudomonas aeruginosa.

      Typically, MOE presents with severe and unrelenting ear pain, which tends to worsen at night. Even after the swelling of the ear canal subsides with topical antibiotics, the pain may persist. Other symptoms may include pus drainage from the ear and temporal headaches. Approximately 50% of patients also experience facial nerve paralysis, and cranial nerves IX to XII may be affected as well.

      To confirm the diagnosis, technetium scanning and contrast-enhanced CT scanning are usually performed to detect any extension of the infection into the surrounding bony structures.

      If left untreated, MOE can be life-threatening and may lead to serious complications such as skull base osteomyelitis, subdural empyema, and cerebral abscess.

      Treatment typically involves long-term administration of intravenous antibiotics. While surgical intervention is not effective for MOE, exploratory surgery may be necessary to obtain cultures of unusual organisms that are not responding adequately to intravenous antibiotics.

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  • Question 44 - A 35-year-old woman presents with a 3-day history of dizziness. She is currently...

    Incorrect

    • A 35-year-old woman presents with a 3-day history of dizziness. She is currently unable to leave her bed and is lying still. The dizziness symptoms are present at all times and not worsened by head position. She has vomited multiple times this morning. She had a respiratory infection last week that was treated with antibiotics and has now resolved. She had a similar episode 3 months ago, which lasted about five days and then resolved. On examination, she has an unsteady gait, normal hearing, and prominent horizontal nystagmus to the left side. The Hallpike maneuver was negative.
      What is the SINGLE most likely diagnosis?

      Your Answer:

      Correct Answer: Vestibular neuronitis

      Explanation:

      Differentiating between the various causes of vertigo can be challenging, but there are several clues in the question that can help determine the most likely cause. The sudden onset of severe fixed vertigo, not related to position, following a sinus infection suggests vestibular neuronitis rather than labyrinthitis. Vestibular neuronitis is typically characterized by severe vertigo without hearing loss or tinnitus.

      Here are the key clinical features of the different causes of vertigo mentioned in the question:

      Vestibular neuronitis:
      – Infection of the 8th cranial nerve, which can be viral or bacterial
      – Often preceded by a sinus infection or upper respiratory tract infection
      – Severe vertigo
      – Vertigo is not related to position
      – No hearing loss or tinnitus
      – Nausea and vomiting are common
      – Nystagmus (involuntary eye movement) away from the side of the lesion
      – Episodes may recur over an 18-month period

      Labyrinthitis:
      – Usually caused by a viral infection
      – Can affect the entire inner ear and 8th cranial nerve
      – Severe vertigo
      – Vertigo can be related to position
      – May be accompanied by sensorineural hearing loss and tinnitus
      – Nausea and vomiting are common
      – Nystagmus away from the side of the lesion

      Benign positional vertigo:
      – Often idiopathic (no known cause)
      – Can be secondary to trauma or other inner ear disorders
      – Triggered by head movement, rolling over, or looking upward
      – Brief episodes lasting less than 5 minutes
      – No hearing loss or tinnitus
      – Nausea is common, vomiting is rare
      – Positive Hallpike maneuver (a diagnostic test)

      Meniere’s disease:
      – Idiopathic (no known cause)
      – Sensorineural hearing loss
      – Hearing loss usually gradually progressive and affects one ear
      – Associated with tinnitus
      – Vertigo attacks typically last 2-3 hours
      – Attacks of vertigo last less than 24 hours
      – Sensation of fullness or pressure in the ear(s)
      – Nausea and vomiting are common
      – Nystagmus away from the side of the lesion
      – More common in individuals with migraines

      Acoustic neuroma:
      – Benign tumor of the 8th cranial nerve in the brain
      – Gradually worsening unilateral sensorineural hearing loss
      – Facial numbness and tingling

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  • Question 45 - A 22-year-old patient arrives at the Emergency Department a few hours after being...

    Incorrect

    • A 22-year-old patient arrives at the Emergency Department a few hours after being discharged from the day surgery unit following a tonsillectomy. The patient is experiencing bleeding in the surgical area, and you are having trouble controlling it. You urgently page the on-call ENT team.
      Which of the following blood vessels is most likely causing the bleeding?

      Your Answer:

      Correct Answer: External palatine vein

      Explanation:

      Recurrent or chronic tonsillitis is a clear indication for tonsillectomy, which is the surgical removal of the palatine tonsils. One common complication of this procedure is bleeding, which occurs in approximately 0.5-2% of cases. The bleeding that occurs after tonsillectomy is typically venous in nature and most frequently originates from the external palatine vein. This vein drains the lateral tonsillar region and ultimately empties into the facial vein. Additionally, bleeding can also arise from the tonsillar branch of the facial artery, which supplies the inferior pole of the palatine tonsil.

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  • Question 46 - A 4 year old boy is brought to the emergency department by his...

    Incorrect

    • A 4 year old boy is brought to the emergency department by his parents due to a 4 day history of fever, irritability, and pain in his left ear. On examination, there is a tender, erythematous, boggy swelling behind his ear. What is the most probable underlying cause?

      Your Answer:

      Correct Answer: Acute otitis media

      Explanation:

      Acute mastoiditis commonly occurs as a complication of acute otitis media (AOM). In this case, the patient exhibits symptoms indicative of acute mastoiditis. The infection typically spreads from the middle ear tympanic cavity (acute otitis media) to the mastoid antrum through a narrow canal within the petrous temporal bone.

      Further Reading:

      Mastoiditis is an infection of the mastoid air cells, which are located in the mastoid process of the skull. It is usually caused by the spread of infection from the middle ear. The most common organism responsible for mastoiditis is Streptococcus pneumoniae, but other bacteria and fungi can also be involved. The infection can spread to surrounding structures, such as the meninges, causing serious complications like meningitis or cerebral abscess.

      Mastoiditis can be classified as acute or chronic. Acute mastoiditis is a rare complication of acute otitis media, which is inflammation of the middle ear. It is characterized by severe ear pain, fever, swelling and redness behind the ear, and conductive deafness. Chronic mastoiditis is usually associated with chronic suppurative otitis media or cholesteatoma and presents with recurrent episodes of ear pain, headache, and fever.

      Mastoiditis is more common in children, particularly those between 6 and 13 months of age. Other risk factors include immunocompromised patients, those with intellectual impairment or communication difficulties, and individuals with cholesteatoma.

      Diagnosis of mastoiditis involves a physical examination, blood tests, ear swab for culture and sensitivities, and imaging studies like contrast-enhanced CT or MRI. Treatment typically involves referral to an ear, nose, and throat specialist, broad-spectrum intravenous antibiotics, pain relief, and myringotomy (a procedure to drain fluid from the middle ear).

      Complications of mastoiditis are rare but can be serious. They include intracranial abscess, meningitis, subperiosteal abscess, neck abscess, venous sinus thrombosis, cranial nerve palsies, hearing loss, labyrinthitis, extension to the zygoma, and carotid artery arteritis. However, most patients with mastoiditis have a good prognosis and do not experience long-term ear problems.

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  • Question 47 - A 35 year old is admitted to the emergency department after a severe...

    Incorrect

    • A 35 year old is admitted to the emergency department after a severe assault resulting in facial and head trauma. The patient presents with continuous nasal discharge, and a fellow healthcare provider expresses concern about potential cerebrospinal fluid (CSF) rhinorrhea. What is the most suitable test to confirm this diagnosis?

      Your Answer:

      Correct Answer: Nasal discharge tested for beta-2 transferrin

      Explanation:

      If someone is suspected to have CSF rhinorrhoea, their nasal discharge should be tested for beta-2 transferrin. This test is considered the most accurate diagnostic method to confirm the presence of CSF rhinorrhoea and has replaced glucose testing.

      Further Reading:

      Zygomatic injuries, also known as zygomatic complex fractures, involve fractures of the zygoma bone and often affect surrounding bones such as the maxilla and temporal bones. These fractures can be classified into four positions: the lateral and inferior orbital rim, the zygomaticomaxillary buttress, and the zygomatic arch. The full extent of these injuries may not be visible on plain X-rays and may require a CT scan for accurate diagnosis.

      Zygomatic fractures can pose risks to various structures in the face. The temporalis muscle and coronoid process of the mandible may become trapped in depressed fractures of the zygomatic arch. The infraorbital nerve, which passes through the infraorbital foramen, can be injured in zygomaticomaxillary complex fractures. In orbital floor fractures, the inferior rectus muscle may herniate into the maxillary sinus.

      Clinical assessment of zygomatic injuries involves observing facial asymmetry, depressed facial bones, contusion, and signs of eye injury. Visual acuity must be assessed, and any persistent bleeding from the nose or mouth should be noted. Nasal injuries, including septal hematoma, and intra-oral abnormalities should also be evaluated. Tenderness of facial bones and the temporomandibular joint should be assessed, along with any step deformities or crepitus. Eye and jaw movements must also be evaluated.

      Imaging for zygomatic injuries typically includes facial X-rays, such as occipitomental views, and CT scans for a more detailed assessment. It is important to consider the possibility of intracranial hemorrhage and cervical spine injury in patients with facial fractures.

      Management of most zygomatic fractures can be done on an outpatient basis with maxillofacial follow-up, assuming the patient is stable and there is no evidence of eye injury. However, orbital floor fractures should be referred immediately to ophthalmologists or maxillofacial surgeons. Zygomatic arch injuries that restrict mouth opening or closing due to entrapment of the temporalis muscle or mandibular condyle also require urgent referral. Nasal fractures, often seen in conjunction with other facial fractures, can be managed by outpatient ENT follow-up but should be referred urgently if there is uncontrolled epistaxis, CSF rhinorrhea, or septal hematoma.

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  • Question 48 - A 23 year old female comes to the emergency department complaining of left...

    Incorrect

    • A 23 year old female comes to the emergency department complaining of left ear pain that has been present for 2 days. She mentions that the pain started the day after she went swimming. Upon examination of the left ear with an otoscope, the entire tympanic membrane is visible and appears red, but intact. There is also redness and swelling in the left ear canal with minimal white debris. The patient is diagnosed with mild otitis externa on the left side.

      What would be the most suitable course of action for managing this patient?

      Your Answer:

      Correct Answer: Prescribe otomize spray for 7 days

      Explanation:

      For mild cases of otitis externa, using ear drops or spray as the initial treatment is a reasonable option. The insertion of a medicated wick, known as a Pope wick, is typically reserved for patients with severely narrowed external auditory canals. Microsuction, on the other hand, is helpful for patients with excessive debris in their ear canal but is not necessary for this particular patient. In general, microsuction is usually only used for severe cases of otitis externa that require referral to an ear, nose, and throat specialist for further management.

      Further Reading:

      Otitis externa is inflammation of the skin and subdermis of the external ear canal. It can be acute, lasting less than 6 weeks, or chronic, lasting more than 3 months. Malignant otitis externa, also known as necrotising otitis externa, is a severe and potentially life-threatening infection that can spread to the bones and surrounding structures of the ear. It is most commonly caused by Pseudomonas aeruginosa.

      Symptoms of malignant otitis externa include severe and persistent ear pain, headache, discharge from the ear, fever, malaise, vertigo, and profound hearing loss. It can also lead to facial nerve palsy and other cranial nerve palsies. In severe cases, the infection can spread to the central nervous system, causing meningitis, brain abscess, and sepsis.

      Acute otitis externa is typically caused by Pseudomonas aeruginosa or Staphylococcus aureus, while chronic otitis externa can be caused by fungal infections such as Aspergillus or Candida albicans. Risk factors for otitis externa include eczema, psoriasis, dermatitis, acute otitis media, trauma to the ear canal, foreign bodies in the ear, water exposure, ear canal obstruction, and long-term antibiotic or steroid use.

      Clinical features of otitis externa include itching of the ear canal, ear pain, tenderness of the tragus and/or pinna, ear discharge, hearing loss if the ear canal is completely blocked, redness and swelling of the ear canal, debris in the ear canal, and cellulitis of the pinna and adjacent skin. Tender regional lymphadenitis is uncommon.

      Management of acute otitis externa involves general ear care measures, optimizing any underlying medical or skin conditions that are risk factors, avoiding the use of hearing aids or ear plugs if there is a suspected contact allergy, and avoiding the use of ear drops if there is a suspected allergy to any of its ingredients. Treatment options include over-the-counter acetic acid 2% ear drops or spray, aural toileting via dry swabbing, irrigation, or microsuction, and prescribing topical antibiotics with or without a topical corticosteroid. Oral antibiotics may be prescribed in severe cases or for immunocompromised individuals.

      Follow-up is advised if symptoms do not improve within 48-72 hours of starting treatment, if symptoms have not fully resolved

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  • Question 49 - A 60-year-old woman presents with a gradual decline in her hearing. She struggles...

    Incorrect

    • A 60-year-old woman presents with a gradual decline in her hearing. She struggles to understand her husband's words at times and describes his voice as muffled. Both of her ears are affected, and her hearing worsens in noisy settings. During the examination, both of her eardrums appear normal, and Rinne's test yields normal results.

      What is the MOST LIKELY diagnosis for this patient?

      Your Answer:

      Correct Answer: Presbycusis

      Explanation:

      Presbycusis is a type of hearing loss that occurs gradually as a person gets older. It affects both ears and is caused by the gradual deterioration of the hair cells in the cochlea and the cochlear nerve. The most noticeable hearing loss is at higher frequencies, and it worsens over time. People with presbycusis often have difficulty hearing speech clearly, and they may describe words as sounding muffled or blending together. A test called Rinne’s test will show normal results in cases of presbycusis. If a patient has presbycusis, it is recommended that they be referred for a hearing aid fitting.

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  • Question 50 - A 5-year-old girl is brought in with a history of high temperatures and...

    Incorrect

    • A 5-year-old girl is brought in with a history of high temperatures and severe right-sided ear pain. She had a very restless night, but her pain suddenly improved this morning. Since she has improved, there has been noticeable purulent discharge coming from her right ear. On examination, you are unable to visualise the tympanic membrane due to the presence of profuse discharge.

      What is the SINGLE most appropriate next management step for this patient?

      Your Answer:

      Correct Answer: Review patient again in 14 days

      Explanation:

      This child has a past medical history consistent with acute purulent otitis media on the left side. The sudden improvement and discharge of pus from the ear strongly suggest a perforated tympanic membrane. It is not uncommon to be unable to see the tympanic membrane in these situations.

      Initially, it is best to adopt a watchful waiting approach to tympanic membrane perforation. Spontaneous healing occurs in over 90% of patients, so only persistent cases should be referred for myringoplasty. There is no need for an urgent same-day referral in this case.

      The use of topical corticosteroids and gentamicin is not recommended when there is a tympanic membrane perforation.

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  • Question 51 - A 65 year old male comes to the emergency department complaining of sudden...

    Incorrect

    • A 65 year old male comes to the emergency department complaining of sudden onset of right sided facial droop and right sided facial pain extending from the mouth to the ear. Upon examination, you observe an inability to fully close the right eye or lift the right side of the mouth to smile. Additionally, you notice a cluster of small vesicles just below and lateral to the right commissure of the mouth.

      What is the probable cause of this patient's symptoms?

      Your Answer:

      Correct Answer: Varicella zoster infection

      Explanation:

      Ramsay Hunt syndrome occurs when the dormant herpes zoster virus in the facial nerve becomes active again. This leads to the development of a vesicular rash, which can appear on the external ear, auditory canal, face near the mouth, or inside the mouth. It is often referred to as shingles of the facial nerve, but it is more complex than that. The infection primarily affects the geniculate ganglion of the facial nerve, but because the vestibulocochlear nerve (CN VIII) is close by in the bony facial canal, symptoms of CN VIII dysfunction like tinnitus and vertigo may also be present.

      Further Reading:

      Ramsay Hunt syndrome, also known as herpes zoster oticus, is a condition caused by the reactivation of the varicella zoster virus within the geniculate ganglion of the facial nerve. It is characterized by several clinical features, including ipsilateral facial paralysis, otalgia (ear pain), a vesicular rash on the external ear, ear canal, face, and/or mouth, and vestibulocochlear dysfunction (such as vertigo, tinnitus, hearing loss, or hyperacusis). Flu-like symptoms may also precede the rash. It is important to note that symptoms can vary, and in some cases, the rash may be absent.

      The diagnosis of Ramsay Hunt syndrome is usually made based on clinical presentation. Treatment typically involves the use of antiviral medications, such as aciclovir or famciclovir, as well as steroids. In cases where the patient is unable to close their eye, an eye patch and lubricants may be used to protect the eye. The typical medication prescription for an adult includes aciclovir 800 mg five times daily or famciclovir 500 mg three times a day for 7-10 days, along with prednisolone 50 mg for 10 days or 60 mg once daily for 5 days, followed by a gradual reduction in dose.

      Complications of Ramsay Hunt syndrome can include postherpetic neuralgia, corneal abrasions, secondary bacterial infection of the lesions, and chronic tinnitus and/or vestibular dysfunction. It is important for individuals with this condition to receive appropriate medical management to minimize these complications and promote recovery.

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  • Question 52 - A 35-year-old patient arrives at the emergency department with a complaint of sudden...

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    • A 35-year-old patient arrives at the emergency department with a complaint of sudden hearing loss. During the examination, tuning fork tests are conducted. Weber's test shows lateralization to the right side, and Rinne's test is positive for both ears.

      Based on this assessment, which of the following can be concluded?

      Your Answer:

      Correct Answer: Right sided sensorineural hearing loss

      Explanation:

      When performing Weber’s test, if the sound lateralizes to the unaffected side, it suggests sensorineural hearing loss in the opposite ear. For example, if the sound lateralizes to the left, it indicates sensorineural hearing loss in the right ear. On the other hand, if there is conductive hearing loss in the left ear, the sound will lateralize to the affected side. Additionally, a positive Rinne test result, where air conduction is greater than bone conduction, is typically seen in normal hearing and sensorineural loss. Conversely, a negative Rinne test result, where bone conduction is greater than air conduction, is expected in cases of conductive hearing loss. In summary, these test results can help identify the presence of sensorineural loss in the opposite ear.

      Further Reading:

      Hearing loss is a common complaint that can be caused by various conditions affecting different parts of the ear and nervous system. The outer ear is the part of the ear outside the eardrum, while the middle ear is located between the eardrum and the cochlea. The inner ear is within the bony labyrinth and consists of the vestibule, semicircular canals, and cochlea. The vestibulocochlear nerve connects the inner ear to the brain.

      Hearing loss can be classified based on severity, onset, and type. Severity is determined by the quietest sound that can be heard, measured in decibels. It can range from mild to profound deafness. Onset can be sudden, rapidly progressive, slowly progressive, or fluctuating. Type of hearing loss can be either conductive or sensorineural. Conductive hearing loss is caused by issues in the external ear, eardrum, or middle ear that disrupt sound transmission. Sensorineural hearing loss is caused by problems in the cochlea, auditory nerve, or higher auditory processing pathways.

      To diagnose sensorineural and conductive deafness, a 512 Hz tuning fork is used to perform Rinne and Weber’s tests. These tests help determine the type of hearing loss based on the results. In Rinne’s test, air conduction (AC) and bone conduction (BC) are compared, while Weber’s test checks for sound lateralization.

      Cholesteatoma is a condition characterized by the abnormal accumulation of skin cells in the middle ear or mastoid air cell spaces. It is believed to develop from a retraction pocket that traps squamous cells. Cholesteatoma can cause the accumulation of keratin and the destruction of adjacent bones and tissues due to the production of destructive enzymes. It can lead to mixed sensorineural and conductive deafness as it affects both the middle and inner ear.

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  • Question 53 - A fit and healthy 40-year-old woman presents with a sudden onset of facial...

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    • A fit and healthy 40-year-old woman presents with a sudden onset of facial palsy that began 48 hours ago. After conducting a thorough history and examination, a diagnosis of Bell's palsy is determined.
      Which of the following statements about Bell's palsy is NOT true?

      Your Answer:

      Correct Answer: It typically spares the upper facial muscles

      Explanation:

      Bell’s palsy is a condition characterized by a facial paralysis that affects the lower motor neurons. It can be distinguished from an upper motor neuron lesion by the individual’s inability to raise their eyebrow and the involvement of the upper facial muscles.

      One notable feature of Bell’s palsy is the occurrence of Bell’s phenomenon, which refers to the upward and outward rolling of the eye on the affected side when attempting to close the eye and bare the teeth.

      Approximately 80% of sudden onset lower motor neuron facial palsies are attributed to Bell’s palsy. It is believed that this condition is caused by swelling of the facial nerve within the petrous temporal bone, which is thought to be a result of a latent herpesvirus, specifically HSV-1 and HZV.

      Treatment for Bell’s palsy often involves the use of steroids and acyclovir. These medications can help alleviate symptoms and promote recovery.

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  • Question 54 - A 65-year-old man presents with short episodes of vertigo that worsen in the...

    Incorrect

    • A 65-year-old man presents with short episodes of vertigo that worsen in the morning and are triggered by head movement. You suspect a diagnosis of benign paroxysmal positional vertigo (BPPV).
      Which straightforward bedside test can be conducted to confirm the diagnosis?

      Your Answer:

      Correct Answer: The Dix-Hallpike test

      Explanation:

      The Dix-Hallpike test is a straightforward examination that can be utilized to verify the diagnosis of benign paroxysmal positional vertigo (BPPV).

      To conduct the Dix-Hallpike test, the patient is swiftly brought down to a supine position with the neck extended by the clinician executing the maneuver. The test yields a positive result if the patient experiences a recurrence of their vertigo symptoms and the clinician performing the test observes nystagmus.

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  • Question 55 - A 45-year-old woman comes in with recurring nosebleeds. During the examination, you observe...

    Incorrect

    • A 45-year-old woman comes in with recurring nosebleeds. During the examination, you observe a small bleeding point in the front of the nose.
      What is the PRIMARY location for anterior bleeding?

      Your Answer:

      Correct Answer: Kiesselbach’s plexus

      Explanation:

      The upper part of the nose receives blood supply from the anterior and posterior ethmoidal arteries, which are derived from the internal carotid artery. On the other hand, the remaining parts of the nose and sinuses are nourished by the greater palatine, sphenopalatine, and superior labial arteries. These arteries are branches of the external carotid arteries.

      In the front part of the nasal septum, there exists a network of blood vessels where the branches of the internal and external carotid artery connect. This network is known as Kiesselbach’s plexus, also referred to as Little’s area. It is worth noting that Kiesselbach’s plexus is the most common location for anterior bleeding.

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  • Question 56 - A 32 year old female presents to the emergency department complaining of feeling...

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    • A 32 year old female presents to the emergency department complaining of feeling something enter her left ear and experiencing a persistent sensation of it being stuck inside. Upon examination using an otoscope, a small fly is observed moving within the ear canal but appears to be trapped in earwax. The tympanic membrane appears intact.

      What is the most suitable initial approach to managing this patient?

      Your Answer:

      Correct Answer: Instill the ear canal with 2% lidocaine

      Explanation:

      Lidocaine is commonly chosen because it offers some local anesthesia. Alternatively, mineral oil can be used. Cold water irrigation can often cause nausea and vomiting, so it is recommended to use warm water for irrigation. An ENT clinician should be able to remove an insect from the ear canal. However, if removal attempts are unsuccessful or complications arise, a referral may be necessary.

      Further Reading:

      Foreign bodies in the ear or nose are a common occurrence, especially in children between the ages of 2 and 8. Foreign bodies in the ear are more common than those in the nose. Symptoms of foreign bodies in the ear may include ear pain, a feeling of fullness, impaired hearing, discharge, tinnitus, and vertigo. It is important to consider referral to an ENT specialist for the removal of potentially harmful foreign bodies such as glass, sharp objects, button batteries, and tightly wedged items. ENT involvement is also necessary if there is a perforation of the eardrum or if the foreign body is embedded in the eardrum.

      When preparing a patient for removal, it is important to establish rapport and keep the patient relaxed, especially if they are a young child. The patient should be positioned comfortably and securely, and ear drops may be used to anesthetize the ear. Removal methods for foreign bodies in the ear include the use of forceps or a hook, irrigation (except for batteries, perforations, or organic material), suction, and magnets for ferrous metal foreign bodies. If there is an insect in the ear, it should be killed with alcohol, lignocaine, or mineral oil before removal.

      After the foreign body is removed, it is important to check for any residual foreign bodies and to discharge the patient with appropriate safety net advice. Prophylactic antibiotic drops may be considered if there has been an abrasion of the skin.

      Foreign bodies in the nose are less common but should be dealt with promptly due to the risk of posterior dislodgement into the airway. Symptoms of foreign bodies in the nose may include nasal discharge, sinusitis, nasal pain, epistaxis, or blood-stained discharge. Most nasal foreign bodies are found on the anterior or middle third of the nose and may not show up on x-rays.

      Methods for removing foreign bodies from the nose include the mother’s kiss technique, suction, forceps, Jobson horne probe, and foley catheter. The mother’s kiss technique involves occluding the patent nostril and having a parent blow into the patient’s mouth. A foley catheter can be used by inserting it past the foreign body and inflating the balloon to gently push the foreign body out. ENT referral may be necessary if the foreign body cannot be visualized but there is a high suspicion, if attempts to remove the foreign body have failed, if the patient requires sed

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  • Question 57 - A 14-year-old girl presents with a sudden onset of a painful throat that...

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    • A 14-year-old girl presents with a sudden onset of a painful throat that has been bothering her for the past day. She has no history of a cough and no symptoms of a cold. During the examination, her temperature is measured at 38.5°C, and there is clear evidence of pus on her right tonsil, which also appears to be swollen and red. No swollen lymph nodes are felt in the front of her neck.
      Based on the FeverPAIN Score used to evaluate her sore throat, what is the most appropriate course of action?

      Your Answer:

      Correct Answer: Treat immediately with empiric antibiotics

      Explanation:

      Two scoring systems are suggested by NICE to aid in the evaluation of sore throat: The Centor Clinical Prediction Score and The FeverPAIN Score.

      The FeverPAIN score was developed from a study involving 1760 adults and children aged three and above. The score was tested in a trial that compared three prescribing strategies: empirical delayed prescribing, using the score to guide prescribing, or a combination of the score with the use of a near-patient test (NPT) for streptococcus. Utilizing the score resulted in faster symptom resolution and a reduction in the prescription of antibiotics (both reduced by one third). The inclusion of the NPT did not provide any additional benefit.

      The score comprises of five factors, each of which is assigned one point: Fever (Temp >38°C) in the last 24 hours, Purulence, Attended rapidly in under three days, Inflamed tonsils, and No cough or coryza.

      Based on the score, the recommendations are as follows:
      – Score 0-1 = 13-18% likelihood of streptococcus infection, antibiotics are not recommended.
      – Score 2-3 = 34-40% likelihood of streptococcus infection, consider delayed prescribing of antibiotics (3-5 day ‘backup prescription’).
      – Score 4-5 = 62-65% likelihood of streptococcus infection, use immediate antibiotics if severe, or a 48-hour short ‘backup prescription.’

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  • Question 58 - You are requested to observe and approve a DOPS form for a final...

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    • You are requested to observe and approve a DOPS form for a final year medical student who will be conducting nasal cautery on a 68-year-old patient experiencing epistaxis. You inquire with the student regarding potential complications associated with the procedure. What is a commonly acknowledged complication of nasal cautery?

      Your Answer:

      Correct Answer: Septal perforation

      Explanation:

      Epistaxis, or nosebleed, is a common condition that can occur in both children and older adults. It is classified as either anterior or posterior, depending on the location of the bleeding. Anterior epistaxis usually occurs in younger individuals and arises from the nostril, most commonly from an area called Little’s area. These bleeds are usually not severe and account for the majority of nosebleeds seen in hospitals. Posterior nosebleeds, on the other hand, occur in older patients with conditions such as hypertension and atherosclerosis. The bleeding in posterior nosebleeds is likely to come from both nostrils and originates from the superior or posterior parts of the nasal cavity or nasopharynx.

      The management of epistaxis involves assessing the patient for signs of instability and implementing measures to control the bleeding. Initial measures include sitting the patient upright with their upper body tilted forward and their mouth open. Firmly pinching the cartilaginous part of the nose for 10-15 minutes without releasing the pressure can also help stop the bleeding. If these measures are successful, a cream called Naseptin or mupirocin nasal ointment can be prescribed for further treatment.

      If bleeding persists after the initial measures, nasal cautery or nasal packing may be necessary. Nasal cautery involves using a silver nitrate stick to cauterize the bleeding point, while nasal packing involves inserting nasal tampons or inflatable nasal packs to stop the bleeding. In cases of posterior bleeding, posterior nasal packing or surgery to tie off the bleeding vessel may be considered.

      Complications of epistaxis can include nasal bleeding, hypovolemia, anemia, aspiration, and even death. Complications specific to nasal packing include sinusitis, septal hematoma or abscess, pressure necrosis, toxic shock syndrome, and apneic episodes. Nasal cautery can lead to complications such as septal perforation and caustic injury to the surrounding skin.

      In children under the age of 2 presenting with epistaxis, it is important to refer them for further investigation as an underlying cause is more likely in this age group.

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  • Question 59 - A 3-year-old toddler comes in with a high temperature, trouble swallowing, and difficulty...

    Incorrect

    • A 3-year-old toddler comes in with a high temperature, trouble swallowing, and difficulty speaking. The child is drooling and has been intubated by a senior anesthesiologist and ENT surgeon. After examination, the diagnosis is determined to be acute epiglottitis.
      What is the MOST LIKELY organism responsible for this condition?

      Your Answer:

      Correct Answer: Streptococcus spp.

      Explanation:

      Acute epiglottitis is inflammation of the epiglottis, which can be life-threatening if not treated promptly. When the soft tissues surrounding the epiglottis are also affected, it is called acute supraglottitis. This condition is most commonly seen in children between the ages of 3 and 5, but it can occur at any age, with adults typically presenting in their 40s and 50s.

      In the past, Haemophilus influenzae type B was the main cause of acute epiglottitis, but with the introduction of the Hib vaccination, it has become rare in children. Streptococcus spp. is now the most common causative organism. Other potential culprits include Staphylococcus aureus, Pseudomonas spp., Moraxella catarrhalis, Mycobacterium tuberculosis, and the herpes simplex virus. In immunocompromised patients, Candida spp. and Aspergillus spp. infections can occur.

      The typical symptoms of acute epiglottitis include fever, sore throat, painful swallowing, difficulty swallowing secretions (especially in children who may drool), muffled voice, stridor, respiratory distress, rapid heartbeat, tenderness in the front of the neck over the hyoid bone, ear pain, and swollen lymph nodes in the neck. Some patients may also exhibit the tripod sign, where they lean forward on outstretched arms to relieve upper airway obstruction.

      To diagnose acute epiglottitis, fibre-optic laryngoscopy is considered the gold standard investigation. However, this procedure should only be performed by an anaesthetist in a setting prepared for intubation or tracheostomy in case of airway obstruction. Other useful tests include a lateral neck X-ray to look for the thumbprint sign, throat swabs, blood cultures, and a CT scan of the neck if an abscess is suspected.

      When dealing with a case of acute epiglottitis, it is crucial not to panic or distress the patient, especially in pediatric cases. Avoid attempting to examine the throat with a tongue depressor, as this can trigger spasm and worsen airway obstruction. Instead, keep the patient as calm as possible and immediately call a senior anaesthetist, a senior paediatrician, and an ENT surgeon. Nebulized adrenaline can be used as a temporary measure if there is critical airway obstruction.

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  • Question 60 - A 62-year-old woman presents with severe otalgia in her right ear that has...

    Incorrect

    • A 62-year-old woman presents with severe otalgia in her right ear that has been gradually worsening over the past few weeks. She describes the pain as ‘constant’, and she has been unable to sleep for several nights. Her family have noticed that the right side of her face appears to be ‘drooping’. Her past medical history includes poorly controlled type 2 diabetes mellitus. She was diagnosed with otitis externa by a colleague a few weeks earlier, but the pain has failed to settle despite two separate courses of antibiotic drops. On examination, she has a right-sided lower motor neuron facial nerve palsy. Her right ear canal is very swollen and purulent exudate is visible. You are unable to clearly view her tympanic membrane. A swab of the ear taken last week has cultured Pseudomonas aeruginosa.
      What is the SINGLE most likely diagnosis?

      Your Answer:

      Correct Answer: Malignant otitis externa

      Explanation:

      Malignant otitis externa (MOE), also known as necrotising otitis externa, is a rare type of ear infection that primarily affects older individuals with diabetes, particularly if their diabetes is poorly managed.

      MOE initially starts as an infection in the ear canal and gradually spreads to the surrounding bone and soft tissues. In about 98% of cases, the responsible pathogen is Pseudomonas aeruginosa.

      Typically, MOE presents with intense ear pain and persistent inflammation of the ear canal that does not respond well to topical antibiotics. The pain is often described as constant and tends to worsen at night. Even after the swelling of the ear canal subsides with the use of topical antibiotics, the pain may persist. Other symptoms that may be present include pus drainage from the ear and temporal headaches. Approximately 50% of patients also experience facial nerve paralysis, and cranial nerves IX to XII may also be affected.

      If left untreated, MOE can be life-threatening, and serious complications may arise, such as skull base osteomyelitis, subdural empyema, and cerebral abscess.

      To diagnose MOE, technetium scanning and contrast-enhanced CT scanning are typically performed. Treatment usually involves long-term administration of intravenous antibiotics.

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