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Question 1
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A 29-year-old man presented to the hospital, accompanied by the police after having had a fight in a casino. The casino manager called the police when the man refused to leave after he had spent almost 24 hours gambling. The patient ran out of money and was harassing other clients, trying to borrow money from them and telling them that he will return it after he had won and invested the prize money. The patient has no known next of kin and refuses to engage with the attending doctor. He threatens to assault the medical staff and is eventually put under urgent mental health Section 4. A review of his medical notes reveals that the only medication on which he has been is lithium for a known psychiatric illness, but he has not been in touch with his general practitioner for the past two months.
What is the best course of action for managing this patient?Your Answer: Check the lithium levels and consider adding olanzapine
Explanation:Management of Bipolar Depression with Mania or Hypomania
According to the latest NICE guideline CG85, patients with bipolar depression presenting with mania or hypomania should have their lithium levels checked and consider adding an antipsychotic such as haloperidol, olanzapine, quetiapine or risperidone. Therefore, checking the lithium levels and considering adding olanzapine is the correct answer in this case.
Stopping lithium without checking the levels first is not recommended as it is a mood stabiliser and may be required for the patient. Starting haloperidol or risperidone without checking the lithium levels is also not recommended as the doctor must consider the patient’s lithium levels before adding an antipsychotic.
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This question is part of the following fields:
- Psychiatry
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Question 2
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A 45-year-old patient presents after trauma and exhibits a lack of sensation in the anatomical snuff box. Which nerve is likely responsible for this sensory loss?
Your Answer: Radial nerve
Explanation:Common Nerve Injuries and Their Effects
Radial nerve injury causes a condition known as wrist drop, which is characterized by the inability to extend the wrist and fingers. This injury also results in varying degrees of sensory loss, with the anatomical snuffbox being a common area affected.
On the other hand, median nerve injury leads to the loss of sensation in the thumb, index, middle, and lateral half of the ring finger. This condition can also cause weakness in the muscles that control the thumb, leading to difficulty in grasping objects.
Lastly, ulnar nerve injury results in a claw hand deformity, where the fingers are flexed and cannot be straightened. This injury also causes a loss of sensation over the medial half of the ring finger and little finger.
In summary, nerve injuries can have significant effects on the function and sensation of the hand. It is important to seek medical attention if any of these symptoms are experienced to prevent further damage.
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This question is part of the following fields:
- Neurology
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Question 3
Correct
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All can cause a mydriatic pupil, except?
Your Answer: Argyll-Robertson pupil
Explanation:The Argyll-Robertson pupil is a well-known pupillary syndrome that can be observed in cases of neurosyphilis. This condition is characterized by pupils that are able to accommodate, but do not react to light. A helpful mnemonic for remembering this syndrome is Accommodation Reflex Present (ARP) but Pupillary Reflex Absent (PRA). Other features of the Argyll-Robertson pupil include small and irregular pupils. The condition can be caused by various factors, including diabetes mellitus and syphilis.
Mydriasis, which is the enlargement of the pupil, can be caused by various factors. These include third nerve palsy, Holmes-Adie pupil, traumatic iridoplegia, pheochromocytoma, and congenital conditions. Additionally, certain drugs can also cause mydriasis, such as topical mydriatics like tropicamide and atropine, sympathomimetic drugs like amphetamines and cocaine, and anticholinergic drugs like tricyclic antidepressants. It’s important to note that anisocoria, which is when one pupil is larger than the other, can also result in the appearance of mydriasis.
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This question is part of the following fields:
- Ophthalmology
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Question 4
Incorrect
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A 23-year-old woman urgently schedules an appointment due to a two-day history of increasing soreness, redness, and discharge from her left eye. She describes a gritty sensation in the affected eye but denies any foreign body exposure. The patient is otherwise healthy and admits to wearing contact lenses for up to 16 hours daily but has stopped since the onset of symptoms and is using glasses instead. Upon examination, the left eye appears inflamed with excessive tearing, while the right eye is normal. There are no abnormalities in the periorbital tissues, and visual acuity is normal with glasses. What is the most appropriate course of action?
Your Answer: Prescribe chloramphenicol eye drops
Correct Answer: Refer for same day ophthalmology assessment
Explanation:If a patient who wears contact lenses complains of a painful, red eye, it is important to refer them to an eye casualty department to rule out microbial keratitis. While conjunctivitis is the most common cause of a red eye, it can usually be treated with antibiotic eye drops in primary care. However, contact lens wearers are at a higher risk of developing microbial keratitis, which can lead to serious complications such as vision loss. Distinguishing between the two conditions requires a slit-lamp examination, which is why same-day referral to ophthalmology is necessary. Contact lenses should not be used, and medical treatment is required. It is important to note that steroid eye drops should not be prescribed for acute red eye from primary care, and artificial tears are not appropriate for this type of infection.
Understanding Keratitis: Inflammation of the Cornea
Keratitis is a condition that refers to the inflammation of the cornea. While conjunctivitis is a common eye infection that is not usually serious, microbial keratitis can be sight-threatening and requires urgent evaluation and treatment. The causes of keratitis can vary, with bacterial infections typically caused by Staphylococcus aureus and Pseudomonas aeruginosa commonly seen in contact lens wearers. Fungal and amoebic infections can also cause keratitis, with acanthamoebic keratitis accounting for around 5% of cases. Parasitic infections such as onchocercal keratitis can also cause inflammation of the cornea.
Other factors that can cause keratitis include viral infections such as herpes simplex keratitis, environmental factors like photokeratitis (e.g. welder’s arc eye), and exposure keratitis. Clinical features of keratitis include a red eye with pain and erythema, photophobia, a foreign body sensation, and the presence of hypopyon. Referral is necessary for contact lens wearers who present with a painful red eye, as an accurate diagnosis can only be made with a slit-lamp examination.
Management of keratitis involves stopping the use of contact lenses until symptoms have fully resolved, as well as the use of topical antibiotics such as quinolones. Cycloplegic agents like cyclopentolate can also be used for pain relief. Complications of keratitis can include corneal scarring, perforation, endophthalmitis, and visual loss. Understanding the causes and symptoms of keratitis is important for prompt diagnosis and treatment to prevent serious complications.
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This question is part of the following fields:
- Ophthalmology
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Question 5
Incorrect
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A 25-year-old primigravida woman at 36 weeks gestation comes in with mild irregular labor pains in the lower abdomen. Upon examination, her cervix is firm, posterior, and closed, and fetal heart tones are present. However, the pain subsides during the consultation. What would be the most suitable course of action?
Your Answer: Vaginal swab
Correct Answer: Reassure and discharge
Explanation:False labor typically happens during the final month of pregnancy. It is characterized by contractions felt in the lower abdomen that are irregular and spaced out every 20 minutes. However, there are no progressive changes in the cervix.
Labour is divided into three stages, with the first stage beginning from the onset of true labour until the cervix is fully dilated. This stage is further divided into two phases: the latent phase and the active phase. The latent phase involves dilation of the cervix from 0-3 cm and typically lasts around 6 hours. The active phase involves dilation from 3-10 cm and progresses at a rate of approximately 1 cm per hour. In primigravidas, this stage can last between 10-16 hours.
During this stage, the baby’s presentation is important to note. Approximately 90% of babies present in the vertex position, with the head entering the pelvis in an occipito-lateral position. The head typically delivers in an occipito-anterior position.
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This question is part of the following fields:
- Obstetrics
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Question 6
Correct
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A 57-year-old male with a known history of rheumatic fever and frequent episodes of pulmonary oedema is diagnosed with pulmonary hypertension. During examination, an irregularly irregular pulse was noted and auscultation revealed a loud first heart sound and a rumbling mid-diastolic murmur. What is the most probable cause of this patient's pulmonary hypertension?
Your Answer: Mitral stenosis
Explanation:Cardiac Valve Disorders: Mitral Stenosis, Mitral Regurgitation, Aortic Regurgitation, Pulmonary Stenosis, and Primary Pulmonary Hypertension
Cardiac valve disorders are conditions that affect the proper functioning of the heart valves. Among these disorders are mitral stenosis, mitral regurgitation, aortic regurgitation, pulmonary stenosis, and primary pulmonary hypertension.
Mitral stenosis is a narrowing of the mitral valve, usually caused by rheumatic fever. Symptoms include palpitations, dyspnea, and hemoptysis. Diagnosis is aided by electrocardiogram, chest X-ray, and echocardiography. Management may be medical or surgical.
Mitral regurgitation is a systolic murmur that presents with a sustained apex beat displaced to the left and a left parasternal heave. On auscultation, there will be a soft S1, a loud S2, and a pansystolic murmur heard at the apex radiating to the left axilla.
Aortic regurgitation presents with a collapsing pulse with a wide pulse pressure. On palpation of the precordium, there will be a sustained and displaced apex beat with a soft S2 and an early diastolic murmur at the left sternal edge.
Pulmonary stenosis is associated with a normal pulse, with an ejection systolic murmur radiating to the lung fields. There may be a palpable thrill over the pulmonary area.
Primary pulmonary hypertension most commonly presents with progressive weakness and shortness of breath. There is evidence of an underlying cardiac disease, meaning the underlying pulmonary hypertension is more likely to be secondary to another disease process.
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This question is part of the following fields:
- Cardiology
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Question 7
Incorrect
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A 65-year-old man comes to the Emergency Department with confusion and difficulty breathing, with an AMTS score of 9. During the examination, his respiratory rate is 32 breaths/minute, and his blood pressure is 100/70 mmHg. His blood test shows a urea level of 6 mmol/l. What is a predictive factor for increased mortality in this pneumonia patient?
Your Answer: Urea 6 mmol/l
Correct Answer: Respiratory rate >30 breaths/minute
Explanation:Prognostic Indicators in Pneumonia: Understanding the CURB 65 Score
The CURB 65 score is a widely used prognostic tool for patients with pneumonia. It consists of five indicators, including confusion, urea levels, respiratory rate, blood pressure, and age. A respiratory rate of >30 breaths/minute and new-onset confusion with an AMTS score of <8 are two of the indicators that make up the CURB 65 score. However, in the case of a patient with a respiratory rate of 32 breaths/minute and an AMTS score of 9, these indicators still suggest a poor prognosis. A urea level of >7 mmol/l and a blood pressure of <90 mmHg systolic and/or 60 mmHg diastolic are also indicators of a poor prognosis. Finally, age >65 is another indicator that contributes to the CURB 65 score. Understanding these indicators can help healthcare professionals assess the severity of pneumonia and determine appropriate treatment plans.
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This question is part of the following fields:
- Respiratory
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Question 8
Incorrect
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An 80-year-old woman complains of colicky abdominal pain and a tender mass in her groin. Upon examination, a small firm mass is found below and lateral to the pubic tubercle. What is the most probable underlying diagnosis?
Your Answer: Incarcerated inguinal hernia
Correct Answer: Incarcerated femoral hernia
Explanation:The most probable cause of the symptoms, which include intestinal issues and a mass in the femoral canal area, is a femoral hernia. This type of hernia is less common than inguinal hernias but accounts for a significant proportion of all groin hernias.
Understanding the Femoral Canal
The femoral canal is a fascial tunnel located at the medial aspect of the femoral sheath. It contains both the femoral artery and femoral vein, with the canal lying medial to the vein. The borders of the femoral canal include the femoral vein laterally, the lacunar ligament medially, the inguinal ligament anteriorly, and the pectineal ligament posteriorly.
The femoral canal is significant as it allows the femoral vein to expand, enabling increased venous return to the lower limbs. However, it can also be a site for femoral hernias, which occur when abdominal contents protrude through the femoral canal. This is a potential space, and the relatively tight neck of the canal places hernias at high risk of strangulation.
The contents of the femoral canal include lymphatic vessels and Cloquet’s lymph node. Understanding the anatomy and physiological significance of the femoral canal is important for medical professionals in diagnosing and treating potential hernias and other conditions that may affect this area.
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This question is part of the following fields:
- Surgery
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Question 9
Correct
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A 50-year-old woman comes to see her GP for a follow-up on her Dupuytren's contracture. She has been experiencing more difficulty lately with her job, which involves a lot of typing. Despite taking Naproxen, she has not found much relief. During the examination, the GP observes that the metacarpophalangeal joints on her right hand's little finger and ring finger are bent forward by 30 degrees, and she is unable to place her hand flat on the table. What should be the GP's next appropriate step in managing her condition?
Your Answer: Make a routine referral to orthopaedics to be seen by a hand specialist
Explanation:When a patient with Dupuytren’s contracture is unable to straighten their metacarpophalangeal joints and place their hand flat on a table, surgical treatment should be considered. This condition occurs when the palmar fascia becomes stiff and fibroses, causing the affected fingers to contract, typically the ring and little finger of the right hand.
The severity of the condition will determine the appropriate management approach. In cases where the condition is severe and impacting the patient’s quality of life, referral to a hand specialist for secondary intervention is recommended. This may involve either surgical intervention or injectable enzyme therapy, which should only be initiated by a specialist.
For minor cases where the condition is not significantly affecting the patient’s quality of life, primary care management may be appropriate. This will involve reassurance that the condition may improve over time, regular reviews, and advice on when to return for referral if necessary.
It is important to note that corticosteroid injections are not effective in treating Dupuytren’s contracture. Additionally, as this is not an acute problem, patients should not be advised to attend the emergency department.
Understanding Dupuytren’s Contracture
Dupuytren’s contracture is a condition that affects about 5% of the population. It is more common in older men and those with a family history of the condition. The causes of Dupuytren’s contracture include manual labor, phenytoin treatment, alcoholic liver disease, diabetes mellitus, and trauma to the hand.
The condition typically affects the ring finger and little finger, causing them to become bent and difficult to straighten. In severe cases, the hand may not be able to be placed flat on a table.
Surgical treatment may be necessary when the metacarpophalangeal joints cannot be straightened.
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This question is part of the following fields:
- Musculoskeletal
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Question 10
Correct
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A 56-year-old man presents to the clinic with complaints of back pain. He describes experiencing poorly localised lower back pain for the past 2 weeks, which began after doing some yard work. The patient works as a carpenter and reports that the pain has not improved with the use of a heating pad or over-the-counter pain medication. He denies any fever or neurological symptoms. During the examination, paraspinal tenderness is noted, and the straight-leg test is negative. The patient reports intentional weight loss of 5kg over the past 3 months, and his body mass index is 30 kg/m².
What is the most appropriate next step in managing this patient's condition?Your Answer: Add a NSAID
Explanation:The patient is likely experiencing musculoskeletal lower back pain, which may have been worsened by physical labor. There is no indication of infection or cancer, and an MRI is not necessary at this point as it would not alter the treatment plan. It is recommended that patients with back pain remain physically active instead of being on strict bed rest. NSAIDs are the preferred initial treatment for back pain and are more effective than using only paracetamol. Opioids should not be the first choice for treatment.
Management of Non-Specific Lower Back Pain
Lower back pain is a common condition that affects many people. In 2016, NICE updated their guidelines on the management of non-specific lower back pain. The guidelines recommend NSAIDs as the first-line treatment for back pain. Lumbar spine x-rays are not recommended, and MRI should only be offered to patients where malignancy, infection, fracture, cauda equina or ankylosing spondylitis is suspected.
Patients with non-specific back pain are advised to stay physically active and exercise. NSAIDs are recommended as the first-line analgesia, and proton pump inhibitors should be co-prescribed for patients over the age of 45 years who are given NSAIDs. For patients with sciatica, NICE guidelines on neuropathic pain should be followed.
Other possible treatments include exercise programmes and manual therapy, but only as part of a treatment package including exercise, with or without psychological therapy. Radiofrequency denervation and epidural injections of local anaesthetic and steroid may also be considered for acute and severe sciatica.
In summary, the management of non-specific lower back pain involves encouraging self-management, staying physically active, and using NSAIDs as the first-line analgesia. Other treatments may be considered as part of a treatment package, depending on the severity of the condition.
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This question is part of the following fields:
- Musculoskeletal
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