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  • Question 1 - A toddler is brought to your clinic as the mother has noticed some...

    Correct

    • A toddler is brought to your clinic as the mother has noticed some skin lesions on the child's face. Upon examination, you observe multiple small white papules on the nose. What is the probable diagnosis?

      Your Answer: Milia

      Explanation:

      Milia, which are often found on the face of newborns, are a normal occurrence and can be seen in up to 50% of babies. They typically disappear on their own within a few weeks.

      Understanding Milia: Small, Benign Cysts on the Face

      Milia are small cysts that are filled with keratin and are typically found on the face. These cysts are benign and are not harmful to one’s health. Although they can appear at any age, they are more commonly found in newborns. Milia are often described as small, white bumps that are painless and do not cause any discomfort.

      While the exact cause of milia is unknown, they are thought to occur when dead skin cells become trapped in the skin’s surface. They can also develop as a result of using heavy skin care products or as a side effect of certain medications. In most cases, milia will disappear on their own without any treatment. However, if they persist or become bothersome, a dermatologist may recommend treatment options such as extraction or chemical peels.

    • This question is part of the following fields:

      • Dermatology
      8.8
      Seconds
  • Question 2 - A 50-year-old woman presents to the Emergency Department with sudden, painless loss of...

    Incorrect

    • A 50-year-old woman presents to the Emergency Department with sudden, painless loss of vision in her right eye. On examination, fundoscopy reveals a pale retina with a cherry-red spot at the macula in her right eye. Her left eye is normal.
      What is the most likely diagnosis?

      Your Answer: Age-related macular degeneration (AMD)

      Correct Answer: Central retinal-artery occlusion (CRAO)

      Explanation:

      Differentiating Eye Conditions: A Brief Overview

      Central retinal-artery occlusion (CRAO) is characterized by a sudden loss of vision due to the lack of blood supply to the inner layer of the retina. On fundoscopy, the retina appears pale with a ‘cherry-red spot’ at the macula.

      Age-related macular degeneration (AMD) is the most common cause of irreversible vision loss in the developed world. However, deterioration in vision is usually gradual in AMD unless there is a retinal haemorrhage, which would be seen on fundoscopy.

      Central retinal-vein occlusion (CRVO) results in retinal hypoxia and is characterized by tortuous vessels, retinal-vein engorgement, haemorrhages, cotton-wool spots, and optic disc swelling.

      Glaucoma is a progressive optic neuropathy that can result in irreversible loss of nerve fibres if left untreated. On fundoscopy, you may see ‘cupping of the optic disc or an increased cup-to-disc ratio.

      Retinal detachment refers to the separation of the inner layers of the retina from the underlying retinal pigment epithelium. It may present with four Fs: floaters, flashing lights (photopsia), field loss, and fall in visual acuity. Retinal detachment is one of the most time-critical eye emergencies encountered in the emergency setting.

      In summary, understanding the different presentations and fundoscopic findings of these eye conditions is crucial in making an accurate diagnosis and providing appropriate management.

    • This question is part of the following fields:

      • Ophthalmology
      5.4
      Seconds
  • Question 3 - A 25-year-old woman presents to her GP with recurrent, foul-smelling discharge from her...

    Correct

    • A 25-year-old woman presents to her GP with recurrent, foul-smelling discharge from her right ear and decreased hearing on that side. She has been experiencing these episodes every few months, but now notices the discharge on most days. During childhood, she frequently swam and had grommet insertion for glue ear, which fell out when she was around 10 years old. She has no significant medical history and takes only the combined oral contraceptive pill.

      After conducting hearing tests, the following results were obtained:
      - Rinne's test (right side): bone conduction > air conduction
      - Rinne's test (left side): air conduction > bone conduction
      - Weber's test: lateralisation to the right

      What is the likely diagnosis?

      Your Answer: Cholesteatoma

      Explanation:

      The patient is experiencing a conductive hearing loss on the right side, as evidenced by Rinne’s test showing bone conduction > air conduction in the affected ear and Weber’s test lateralizing to the right ear. The most likely diagnosis is cholesteatoma, which is associated with recurrent ear discharge and glue ear. Cholesteatoma occurs when squamous epithelium forms pockets on the tympanic membrane, leading to cyst-like growths that produce keratin and slough over time. This causes erosion in the middle ear, creating an environment for anaerobic bacterial growth.

      Acoustic neuroma, on the other hand, causes sensorineural hearing loss, which is characterized by air conduction > bone conduction in both ears and Weber test lateralizing to the unaffected ear. It is associated with dizziness and typically causes unilateral hearing loss. As the tumor grows, patients may develop neurological symptoms that can be predicted by the affected cranial nerves.

      Otitis externa is an acute infection of the outer ear that can cause conductive hearing loss, but as the patient has a chronic history and lacks ear pain, this diagnosis is less likely. Otosclerosis, which presents with progressive conductive hearing loss and tinnitus, is an autosomal dominant trait that typically affects individuals aged 20-40 years with a family history of early-onset hearing loss. As it does not typically present with smelly ear discharge, other diagnoses should be considered first.

      Rinne’s and Weber’s Test for Differentiating Conductive and Sensorineural Deafness

      Rinne’s and Weber’s tests are two diagnostic tools used to differentiate between conductive and sensorineural deafness. Rinne’s test involves placing a tuning fork over the mastoid process until the sound is no longer heard, then repositioning it just over the external acoustic meatus. A positive test indicates that air conduction (AC) is better than bone conduction (BC), while a negative test suggests conductive deafness if BC is greater than AC.

      On the other hand, Weber’s test involves placing a tuning fork in the middle of the forehead equidistant from the patient’s ears and asking which side is loudest. In unilateral sensorineural deafness, sound is localized to the unaffected side, while in unilateral conductive deafness, sound is localized to the affected side.

      To interpret the results of Rinne’s and Weber’s tests, a normal result indicates that AC is greater than BC bilaterally, and the sound is midline in Weber’s test. Conductive hearing loss is indicated by BC being greater than AC in the affected ear, while AC is greater than BC in the unaffected ear, and the sound lateralizes to the affected ear in Weber’s test. Sensorineural hearing loss is indicated by AC being greater than BC bilaterally, and the sound lateralizes to the unaffected ear in Weber’s test.

    • This question is part of the following fields:

      • ENT
      34.3
      Seconds
  • Question 4 - A 26-year-old female patient visits the sexual health clinic seeking emergency contraception after...

    Correct

    • A 26-year-old female patient visits the sexual health clinic seeking emergency contraception after having unprotected sex 2 days ago. She is currently on the combined oral contraceptive pill but has missed the last 3 pills. The patient is on the 8th day of her menstrual cycle and has asthma, for which she uses fluticasone and salbutamol inhalers. The healthcare provider prescribes levonorgestrel. What advice should be given to the patient?

      Your Answer: She can restart her pill immediately

      Explanation:

      Levonorgestrel (Levonelle) can be followed immediately by hormonal contraception for emergency contraception.

      Patients can resume their regular pill regimen right after taking levonorgestrel for emergency contraception. Levonorgestrel is an approved method of emergency contraception that can be used within 72 hours of unprotected sexual intercourse. It is the preferred oral emergency contraceptive for patients with asthma, as ulipristal is not recommended for those with severe asthma. Unlike ulipristal, which requires a waiting period of 5 days, patients can start hormonal contraception immediately after taking levonorgestrel. However, patients should use condoms for 7 days after restarting their combined oral contraceptive pill (COCP). It is important to note that the other options provided are incorrect. The progesterone-only pill requires condom use for 48 hours, unless initiated within the first 5 days of the menstrual cycle. Ulipristal acetate requires a waiting period of 5 days before restarting hormonal contraception. The COCP requires condom use for 7 days after restarting.

      Emergency contraception is available in the UK through two methods: emergency hormonal contraception and intrauterine device (IUD). Emergency hormonal contraception includes two types of pills: levonorgestrel and ulipristal. Levonorgestrel works by stopping ovulation and inhibiting implantation, while ulipristal primarily inhibits ovulation. Levonorgestrel should be taken as soon as possible after unprotected sexual intercourse, within 72 hours, and is 84% effective when used within this time frame. The dose should be doubled for those with a BMI over 26 or weight over 70kg. Ulipristal should be taken within 120 hours of intercourse and may reduce the effectiveness of hormonal contraception. The most effective method of emergency contraception is the copper IUD, which can be inserted within 5 days of unprotected intercourse or up to 5 days after the likely ovulation date. It may inhibit fertilization or implantation and is 99% effective regardless of where it is used in the cycle. Prophylactic antibiotics may be given if the patient is at high risk of sexually transmitted infection.

    • This question is part of the following fields:

      • Reproductive Medicine
      17.5
      Seconds
  • Question 5 - A 35-year-old woman with a history of eczema and Crohn's disease presents with...

    Incorrect

    • A 35-year-old woman with a history of eczema and Crohn's disease presents with a pruritic, red rash in the right and left popliteal regions. She works as a nurse and frequently scratches the back of her knees while on duty. This is the third time she has experienced such a popliteal rash. She reports having had similar skin conditions affecting her posterior neck and inguinal areas in the past.
      Upon examination, both popliteal areas are inflamed with mild swelling and exudation. There are some accompanying vesicles and papules.
      What is the most probable diagnosis?

      Your Answer:

      Correct Answer: Atopic dermatitis

      Explanation:

      Dermatological Conditions and Their Distribution: Understanding the Diagnosis

      When it comes to diagnosing skin conditions, the location and distribution of the rash or lesion are just as important as their appearance. For instance, a rash in the flexural regions of an adult patient, such as the popliteal region, is likely to be atopic dermatitis, especially if the patient has a history of asthma. Acute dermatitis typically presents with erythema, oedema, vesicles, and papules.

      On the other hand, dermatitis herpetiformis, which is often associated with coeliac disease and malabsorption, presents with grouped vesicles and papules over the extensor surfaces of the elbows, knees, upper back, and buttocks. A rash limited to the popliteal region is unlikely to be dermatitis herpetiformis.

      Lichen planus, characterized by flat-topped, pruritic, polygonal, red-to-violaceous papules or plaques, is mostly found on the wrists, ankles, or genitalia. Psoriasis, which presents with silvery, scaling, erythematous plaques, is primarily found on the extensor surfaces. Seborrhoeic dermatitis, which is found in the distribution of the sebaceous glands, such as the nasolabial folds, scalp, eyebrows, genitalia, and presternal regions, is unlikely to be the cause of a rash limited to the popliteal region.

      In summary, understanding the distribution and location of skin lesions is crucial in making an accurate diagnosis of dermatological conditions.

    • This question is part of the following fields:

      • Dermatology
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  • Question 6 - A nurse updates you on a 32-year-old woman who is 38 weeks pregnant....

    Incorrect

    • A nurse updates you on a 32-year-old woman who is 38 weeks pregnant. The patient's blood pressure reading is 155/90 mmHg, up from 152/85 mmHg two days ago. A 24-hour urine collection shows a urinary protein excretion of 0.7g / 24 hours. The patient was previously healthy before pregnancy. Following oral labetalol administration, what is the next step in managing this situation?

      Your Answer:

      Correct Answer: Plan delivery of the foetus within 48 hours

      Explanation:

      Pregnant women who have mild or moderate gestational hypertension, are beyond 37 weeks of pregnancy, and exhibit pre-eclampsia symptoms, should be advised to deliver their baby within 24 to 48 hours as per the existing recommendations.

      Hypertension during pregnancy is a common occurrence that requires careful management. In normal pregnancies, blood pressure tends to decrease in the first trimester and then gradually increase to pre-pregnancy levels by term. However, in cases of hypertension during pregnancy, the systolic blood pressure is usually above 140 mmHg or the diastolic blood pressure is above 90 mmHg. Additionally, an increase of more than 30 mmHg systolic or 15 mmHg diastolic from the initial readings may also indicate hypertension.

      There are three categories of hypertension during pregnancy: pre-existing hypertension, pregnancy-induced hypertension (PIH), and pre-eclampsia. Pre-existing hypertension refers to a history of hypertension before pregnancy or elevated blood pressure before 20 weeks gestation. PIH occurs in the second half of pregnancy and resolves after birth. Pre-eclampsia is characterized by hypertension and proteinuria, and may also involve edema.

      The management of hypertension during pregnancy involves the use of antihypertensive medications such as labetalol, nifedipine, and hydralazine. In cases of pre-existing hypertension, ACE inhibitors and angiotensin II receptor blockers should be stopped immediately and alternative medications should be prescribed. Women who are at high risk of developing pre-eclampsia should take aspirin from 12 weeks until the birth of the baby. It is important to carefully monitor blood pressure and proteinuria levels during pregnancy to ensure the health of both the mother and the baby.

    • This question is part of the following fields:

      • Reproductive Medicine
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  • Question 7 - A 75-year-old woman comes to the clinic with a painful swelling on the...

    Incorrect

    • A 75-year-old woman comes to the clinic with a painful swelling on the left side of her neck below the jaw angle that has been bothering her for the past 5 days. She also reports a bad taste in her mouth. During the physical examination, the patient has a temperature of 37.8ºC and a tender submandibular mass measuring 4x5cm. Additionally, there is tender lymphadenopathy. What is the probable diagnosis?

      Your Answer:

      Correct Answer: Sialadenitis

      Explanation:

      This woman is experiencing sialadenitis, which is inflammation of the salivary gland. It is likely caused by a stone blocking the duct. The submandibular gland is located below the jawline and its duct drains into the floor of the mouth. When there is a discharge from this duct, it can cause a bad taste in the mouth. There are three main salivary glands: the parotid glands, which are located in front of and below each ear, the submandibular glands, which are located below the jawline, and the sublingual glands, which are located beneath the tongue. Disorders of these glands can be caused by infection, inflammation, obstruction, or malignancy. Swelling of the submandibular gland can be caused by a stone or a tumor, which can be either benign or malignant.

      Salivary Glands and Their Pathologies

      Salivary glands are responsible for producing saliva, which aids in digestion and protects the mouth from harmful bacteria. There are three pairs of salivary glands: parotid, submandibular, and sublingual. The parotid gland is the most common site for tumors, while the submandibular gland is most commonly affected by stones.

      Tumors in the salivary glands are rare, but when they do occur, 80% of them are found in the parotid gland. Of these, 80% are pleomorphic adenomas, which are benign. These tumors typically grow slowly and are painless, but surgical removal carries a risk of damage to the facial nerve (CN VII). Warthin’s tumor is another benign tumor that affects the salivary glands, but it is less common than pleomorphic adenomas.

      Stones in the salivary glands can cause recurrent pain and swelling, especially when eating. They are most commonly found in the submandibular gland and can lead to infection if left untreated. Other causes of salivary gland enlargement include viral or bacterial infections, as well as autoimmune disorders like Sjogren’s syndrome. Proper diagnosis and treatment are important for managing these conditions and preventing complications.

    • This question is part of the following fields:

      • ENT
      0
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  • Question 8 - A 65-year-old man with a history of type 2 diabetes, angina, and erectile...

    Incorrect

    • A 65-year-old man with a history of type 2 diabetes, angina, and erectile dysfunction presents with complaints of rectal pain. During a per rectum examination, the patient experiences discomfort and an anal ulceration is discovered. What is the most probable cause of this man's symptoms?

      Your Answer:

      Correct Answer: Nicorandil

      Explanation:

      Nicorandil, a medication used for angina, can lead to anal ulceration as a potential adverse effect. GTN spray may cause headaches, dizziness, and low blood pressure. Gastric discomfort is a possible side effect of both metformin and ibuprofen. Excessive use of paracetamol can result in liver damage.

      Nicorandil is a medication that is commonly used to treat angina. It works by activating potassium channels, which leads to vasodilation. This process is achieved by stimulating guanylyl cyclase, which increases the levels of cGMP in the body. However, there are some adverse effects associated with the use of nicorandil, including headaches, flushing, and the development of ulcers in the skin, mucous membranes, and eyes. Additionally, nicorandil can cause gastrointestinal ulcers, including anal ulceration. It is important to note that nicorandil should not be used in patients with left ventricular failure.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 9 - You assess a patient's eye and discovered that both pupils constrict when focusing...

    Incorrect

    • You assess a patient's eye and discovered that both pupils constrict when focusing on a nearby object but fail to narrow when exposed to bright light. What is the most frequent reason for this pupillary response in the United Kingdom?

      Your Answer:

      Correct Answer: Diabetes mellitus

      Explanation:

      In the UK, diabetes mellitus is now the most frequent cause of Argyll-Robertson pupil, as neurosyphilis is no longer commonly observed due to effective antibiotic treatment. This condition is not caused by sexually transmitted diseases such as chlamydia or gonorrhoea, nor is it associated with optic neuritis, which instead causes a Marcus Gunn pupil or Relative afferent pupillary defect.

      Argyll-Robertson Pupil: A Classic Pupillary Syndrome

      The Argyll-Robertson Pupil (ARP) is a classic pupillary syndrome that is sometimes observed in neurosyphilis. It is characterized by small, irregular pupils that do not respond to light but do respond to accommodation. A useful mnemonic for remembering this syndrome is Accommodation Reflex Present (ARP) but Pupillary Reflex Absent (PRA).

      The ARP can be caused by various factors, including diabetes mellitus and syphilis. It is important to note that the presence of an ARP may indicate underlying neurological or systemic disease and should prompt further evaluation and management. Proper diagnosis and treatment of the underlying condition can help prevent further complications and improve patient outcomes.

    • This question is part of the following fields:

      • Ophthalmology
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  • Question 10 - A 70-year-old man has been admitted to the stroke ward due to experiencing...

    Incorrect

    • A 70-year-old man has been admitted to the stroke ward due to experiencing dense right-sided weakness and facial droop. The stroke team has treated him for an acute stroke, and he has been making good progress with the help of the physiotherapy and occupational therapy team. Although the CT head did not reveal any abnormalities, the team has arranged for an MRI head and a Doppler ultrasound of the carotid arteries. The MRI head has shown a left-sided infarct, and the carotid doppler has revealed severe stenosis of the left carotid artery. What should be the next appropriate plan for the stroke team?

      Your Answer:

      Correct Answer: Refer to the vascular surgeons for consideration of carotid artery endarterectomy

      Explanation:

      If a patient experiences a stroke or TIA in the carotid territory and is not severely disabled, carotid artery endarterectomy may be a viable option. Additionally, if the patient is making positive strides with physiotherapy and has significant carotid stenosis, they should be evaluated by the surgical team for potential endarterectomy. At this time, there is no need for involvement from the cardiology team as it is unclear what cardiac investigations have already been conducted. An MRI of the C-spine would not provide any additional information for the management plan, and there is no indication for repeat blood tests.

      The Royal College of Physicians (RCP) and NICE have published guidelines on the diagnosis and management of patients following a stroke. The management of acute stroke includes maintaining normal levels of blood glucose, hydration, oxygen saturation, and temperature. Blood pressure should not be lowered in the acute phase unless there are complications. Aspirin should be given as soon as possible if a haemorrhagic stroke has been excluded. Anticoagulants should not be started until brain imaging has excluded haemorrhage. Thrombolysis with alteplase should only be given if administered within 4.5 hours of onset of stroke symptoms and haemorrhage has been definitively excluded. Mechanical thrombectomy is a new treatment option for patients with an acute ischaemic stroke. NICE recommends thrombectomy for people who have acute ischaemic stroke and confirmed occlusion of the proximal anterior circulation demonstrated by computed tomographic angiography or magnetic resonance angiography. Secondary prevention includes the use of clopidogrel and dipyridamole. Carotid artery endarterectomy should only be considered if carotid stenosis is greater than 70% according to ECST criteria or greater than 50% according to NASCET criteria.

    • This question is part of the following fields:

      • Neurology
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  • Question 11 - Which one of the following statements regarding the NHS Breast Cancer Screening Programme...

    Incorrect

    • Which one of the following statements regarding the NHS Breast Cancer Screening Programme is accurate?

      Your Answer:

      Correct Answer: Women are screened every 3 years

      Explanation:

      Breast cancer screening is offered to women aged 50-70 years through the NHS Breast Screening Programme. Mammograms are provided every three years, and women over 70 years are encouraged to make their own appointments. While the effectiveness of breast screening is debated, it is estimated that the programme saves around 1,400 lives annually.

      For those with familial breast cancer, NICE guidelines recommend referral if there is a family history of breast cancer with any of the following: diagnosis before age 40, bilateral breast cancer, male breast cancer, ovarian cancer, Jewish ancestry, sarcoma in a relative under 45 years, glioma or childhood adrenal cortical carcinomas, complicated patterns of multiple cancers at a young age, or paternal history of breast cancer with two or more relatives on the father’s side. Women at increased risk due to family history may be offered screening at a younger age. Referral to a breast clinic is recommended for those with a first-degree relative diagnosed with breast cancer before age 40, a first-degree male relative with breast cancer, a first-degree relative with bilateral breast cancer before age 50, two first-degree relatives or one first-degree and one second-degree relative with breast cancer, or a first- or second-degree relative with breast and ovarian cancer.

    • This question is part of the following fields:

      • Reproductive Medicine
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  • Question 12 - A 32-year-old woman with epilepsy complains of acne and bleeding gums. Which medication...

    Incorrect

    • A 32-year-old woman with epilepsy complains of acne and bleeding gums. Which medication is most likely responsible for these symptoms?

      Your Answer:

      Correct Answer: Phenytoin

      Explanation:

      Side Effects of Common Anticonvulsants

      Anticonvulsants are medications used to treat seizures and epilepsy. However, they commonly have side effects that patients should be aware of. Here are some of the common or more serious side effects reported for some of the most commonly prescribed anticonvulsants:

      Phenytoin: This medication can cause paraesthesia, gingival hypertrophy, tiredness, acne, hirsutism, coarsening of facial appearance, peripheral neuropathy, Steven-Johnson syndrome, and blood dyscrasias (such as aplastic anaemia and megaloblastic anaemia).

      Sodium valproate (Epilim®): Side effects of this medication may include weight gain, thrombocytopenia, transient hair loss, aggression and behavioural changes, ataxia and tremors.

      Carbamazepine: Dry mouth, fatigue, hyponatraemia, blood dyscrasia (such as aplastic anaemia), thrombocytopenia, haemolytic anaemia, eosinophilia, dermatitis, gynaecomastia, male infertility, hepatitis, and restlessness are all possible side effects of this medication.

      Lamotrigine (Lamictal®): Skin rash and hypersensitivity, blurred vision, dizziness, sleep disturbance, and joint pains are some of the side effects that may occur with this medication.

      Levetiracetam (Keppra®): Weight change and anorexia, abdominal pains, nausea, diarrhoea, and anxiety are all possible side effects of this medication.

      It’s important to note that gingival hypertrophy and tenderness are common effects of phenytoin, but not the other medications listed. Patients taking phenytoin should be encouraged to maintain good oral hygiene. Overall, patients should be aware of the potential side effects of their anticonvulsant medication and discuss any concerns with their healthcare provider.

    • This question is part of the following fields:

      • Pharmacology/Therapeutics
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  • Question 13 - A 42-year-old man was seen by his General Practitioner and diagnosed with community-acquired...

    Incorrect

    • A 42-year-old man was seen by his General Practitioner and diagnosed with community-acquired pneumonia. He has completed a 7-day course of antibiotics but continues to have a fever and productive cough. He is not confused, and his observations are all normal apart from a fever of 39 °C. His chest X-ray has signs of atypical pneumonia. He has no drug allergies.
      Which of the following is the most appropriate antibiotic therapy?

      Your Answer:

      Correct Answer: Clarithromycin

      Explanation:

      Antibiotics for Different Types of Pneumonia

      Pneumonia can be caused by various types of bacteria and viruses, and different antibiotics are used to treat them. Atypical pneumonia, caused by organisms such as chlamydia pneumoniae and mycoplasma pneumoniae, does not respond to amoxicillin and requires a 10-14 day course of macrolide antibiotics such as clarithromycin. On the other hand, severe hospital-acquired infections with multidrug-resistant Gram-negative bacteria are treated with aminoglycoside antibiotics like amikacin. Amoxicillin is recommended as first-line treatment for mild community-acquired pneumonia caused by Streptococcus pneumoniae and other bacteria, but it is not effective against atypical pneumonia. Imipenem, a broad-spectrum antibiotic, is used for a range of bacterial infections but not for atypical pneumonia. Cefuroxime, a second-generation cephalosporin antibiotic, is effective against certain bacteria but not indicated for atypical pneumonia. Knowing which antibiotics to use for different types of pneumonia is crucial for effective treatment.

    • This question is part of the following fields:

      • Infectious Diseases
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  • Question 14 - A 56-year-old male patient arrives at the emergency department complaining of back pain...

    Incorrect

    • A 56-year-old male patient arrives at the emergency department complaining of back pain and fever that have persisted for two weeks. During the examination, it is discovered that he has weakness in his right lower limb. The patient has a history of stroke and type 2 diabetes mellitus. Although he has not traveled recently, discitis is suspected. What is the probable organism responsible for this condition?

      Your Answer:

      Correct Answer: Staphylococcus aureus

      Explanation:

      Understanding Discitis: Causes, Symptoms, Diagnosis, and Treatment

      Discitis is a condition characterized by an infection in the intervertebral disc space, which can lead to serious complications such as sepsis or an epidural abscess. The most common cause of discitis is bacterial, with Staphylococcus aureus being the most frequent culprit. However, it can also be caused by viral or aseptic factors. The symptoms of discitis include back pain, pyrexia, rigors, and sepsis. In some cases, neurological features such as changing lower limb neurology may occur if an epidural abscess develops.

      To diagnose discitis, imaging tests such as MRI are used due to their high sensitivity. A CT-guided biopsy may also be required to guide antimicrobial treatment. The standard therapy for discitis involves six to eight weeks of intravenous antibiotic therapy. The choice of antibiotic depends on various factors, with the most important being the identification of the organism through a positive culture, such as a blood culture or CT-guided biopsy.

      Complications of discitis include sepsis and epidural abscess. Therefore, it is essential to assess the patient for endocarditis, which can be done through transthoracic echo or transesophageal echo. Discitis is usually due to haematogenous seeding of the vertebrae, which implies that the patient has had a bacteraemia, and seeding could have occurred elsewhere. Understanding the causes, symptoms, diagnosis, and treatment of discitis is crucial in managing this condition and preventing its complications.

    • This question is part of the following fields:

      • Musculoskeletal
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  • Question 15 - A 35-year-old female patient visits her general practitioner with a concern of experiencing...

    Incorrect

    • A 35-year-old female patient visits her general practitioner with a concern of experiencing bleeding following sexual intercourse. What is the most frequently identifiable reason for postcoital bleeding?

      Your Answer:

      Correct Answer: Cervical ectropion

      Explanation:

      Postcoital bleeding is most commonly caused by cervical ectropion.

      Understanding Postcoital Bleeding

      Postcoital bleeding refers to vaginal bleeding that occurs after sexual intercourse. In approximately 50% of cases, no identifiable pathology is found. However, cervical ectropion is the most common identifiable cause, accounting for around 33% of cases. This condition is more prevalent in women who are taking the combined oral contraceptive pill. Other potential causes of postcoital bleeding include cervicitis, which may be due to Chlamydia infection, cervical cancer, polyps, and trauma.

    • This question is part of the following fields:

      • Reproductive Medicine
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  • Question 16 - As a young physician working in a psychiatric ward, you encounter a situation...

    Incorrect

    • As a young physician working in a psychiatric ward, you encounter a situation where a teenage patient has become uncontrollable and tried to assault a staff member. The patient is currently being restrained in the prone position on the floor, but is still struggling and attempting to break free. The restraint has been in place for approximately 10 minutes. What steps should you take in this scenario?

      Your Answer:

      Correct Answer: Give him rapid tranquillisation

      Explanation:

      To avoid prolonged manual restraint, it is recommended to consider rapid tranquillisation or seclusion as alternatives. Prolonged physical restraint poses both physical and emotional risks for both patients and staff. Handcuffs and other mechanical restraints should only be used in exceptional circumstances in high-secure settings. It is important to avoid releasing an agitated patient from restraint as it could be dangerous for staff and other patients. Patients should not be carried during any kind of restraint.

      Understanding Psychosis

      Psychosis is a term used to describe a person’s experience of perceiving things differently from those around them. This can manifest in various ways, including hallucinations, delusions, thought disorganization, alogia, tangentiality, clanging, and word salad. Associated features may include agitation/aggression, neurocognitive impairment, depression, and thoughts of self-harm. Psychotic symptoms can occur in a range of conditions, such as schizophrenia, depression, bipolar disorder, puerperal psychosis, brief psychotic disorder, neurological conditions, and drug use. The peak age of first-episode psychosis is around 15-30 years.

    • This question is part of the following fields:

      • Psychiatry
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  • Question 17 - A 48-year-old woman of Afro-Caribbean origin presents to her General Practitioner for a...

    Incorrect

    • A 48-year-old woman of Afro-Caribbean origin presents to her General Practitioner for a hypertension review. She has been taking 8 mg of perindopril per day for the last three years. Her average home blood pressure (BP) readings are 150/92 mmHg.
      On examination, she is obese, with a body mass index of 33 kg/m2. On investigation, her renal function is normal, as is urine dipstick testing. There is no evidence of left ventricular hypertrophy on the electrocardiogram. She is not diabetic.
      What is the most appropriate next step in this patient’s management?
      Select the SINGLE most appropriate option from the list below.
      Select ONE option only.

      Your Answer:

      Correct Answer: Switch to amlodipine

      Explanation:

      Treatment Options for Uncontrolled Hypertension

      Hypertension, or high blood pressure, is a common condition that can lead to serious health complications if left untreated. When first-line treatment with an angiotensin-converting enzyme (ACE) inhibitor is not effective, there are several options for adjusting medication to better control blood pressure.

      Switching to a calcium-channel blocker like amlodipine is recommended as a second-line treatment. Thiazide-like diuretics may also be considered. For patients over 55 years old without diabetes, or those of black African or Afro-Caribbean family origin without diabetes, calcium-channel blockers should be started as first-line treatment.

      Increasing the dose of perindopril erbumine beyond the maximum of 8 mg is not safe and may cause renal impairment. Adding atenolol is reserved for patients with known coronary artery disease or inadequately controlled hypertension on maximal doses of other medications.

      Thiazide diuretics like bendroflumethiazide are no longer recommended by NICE guidance. Instead, thiazide-like diuretics such as indapamide are recommended as a second-line alternative to calcium-channel blockers if hypertension is not adequately controlled on maximal doses of first-line treatment.

      If blood pressure remains uncontrolled despite medication adjustments, referral for ambulatory blood pressure monitoring may be necessary to determine the best course of action.

    • This question is part of the following fields:

      • Cardiovascular
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  • Question 18 - A 30-year-old woman visits her GP clinic as her sister was recently diagnosed...

    Incorrect

    • A 30-year-old woman visits her GP clinic as her sister was recently diagnosed with breast cancer. She is worried about her own risk and is considering genetic testing. However, there is no other history of breast cancer in the family. What specific information should lead to a referral to a breast specialist?

      Your Answer:

      Correct Answer: Her sister being 38-years-old

      Explanation:

      Familial breast cancer is linked to ovarian cancer, not endometrial cancer.

      Breast cancer screening is offered to women aged 50-70 years through the NHS Breast Screening Programme. Mammograms are provided every three years, and women over 70 years are encouraged to make their own appointments. While the effectiveness of breast screening is debated, it is estimated that the programme saves around 1,400 lives annually.

      For those with familial breast cancer, NICE guidelines recommend referral if there is a family history of breast cancer with any of the following: diagnosis before age 40, bilateral breast cancer, male breast cancer, ovarian cancer, Jewish ancestry, sarcoma in a relative under 45 years, glioma or childhood adrenal cortical carcinomas, complicated patterns of multiple cancers at a young age, or paternal history of breast cancer with two or more relatives on the father’s side. Women at increased risk due to family history may be offered screening at a younger age. Referral to a breast clinic is recommended for those with a first-degree relative diagnosed with breast cancer before age 40, a first-degree male relative with breast cancer, a first-degree relative with bilateral breast cancer before age 50, two first-degree relatives or one first-degree and one second-degree relative with breast cancer, or a first- or second-degree relative with breast and ovarian cancer.

    • This question is part of the following fields:

      • Genetics
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  • Question 19 - A 38-year-old man complains of dyspepsia without any alarm symptoms. He has no...

    Incorrect

    • A 38-year-old man complains of dyspepsia without any alarm symptoms. He has no significant medical history and this is his first episode. The plan is to use a test-and-treat approach. What is the most suitable test to detect Helicobacter pylori?

      Your Answer:

      Correct Answer: 13C-urea breath test

      Explanation:

      The urea breath test is a non-invasive, highly specific and sensitive method. Therefore, there is no need for an endoscopy. Instead, an alternative option is to use stool antigen instead of culture.

      Tests for Helicobacter pylori

      There are several tests available to diagnose Helicobacter pylori infection. One of the most common tests is the urea breath test, where patients consume a drink containing carbon isotope 13 (13C) enriched urea. The urea is broken down by H. pylori urease, and after 30 minutes, the patient exhales into a glass tube. Mass spectrometry analysis calculates the amount of 13C CO2, which indicates the presence of H. pylori. However, this test should not be performed within four weeks of treatment with an antibacterial or within two weeks of an antisecretory drug.

      Another test is the rapid urease test, also known as the CLO test. This involves mixing a biopsy sample with urea and a pH indicator. If there is a color change, it indicates the presence of H. pylori urease activity. Serum antibody tests can also be used, but they remain positive even after eradication. Culture of gastric biopsy can provide information on antibiotic sensitivity, while histological evaluation alone can be done through gastric biopsy. Lastly, the stool antigen test has a sensitivity of 90% and specificity of 95%.

      Overall, these tests have varying levels of sensitivity and specificity, and the choice of test depends on the patient’s clinical presentation and the availability of resources.

    • This question is part of the following fields:

      • Gastroenterology/Nutrition
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  • Question 20 - An informal inpatient who is believed to pose a risk to themselves or...

    Incorrect

    • An informal inpatient who is believed to pose a risk to themselves or others can be detained in hospital for 72 hours for further evaluation under which section of the Mental Health Act (MHA)?

      Your Answer:

      Correct Answer: Section 5 (2)

      Explanation:

      The Mental Health Act (MHA) has several sections that allow for compulsory admission and treatment of individuals with mental disorders. Section 5(2) can only be used for inpatients and is implemented by the Responsible Clinician or their designated deputy. It lasts for 72 hours and should be followed by a formal Mental Health Act assessment for consideration of detention under Section 2 or 3. Section 2 allows for compulsory admission and assessment of individuals who cannot be safely assessed in the community and refuse voluntary admission. It requires an application from the patient’s nearest relative or an Approved Mental Health Professional (AMHP) and two medical recommendations. It lasts up to 28 days and can be appealed within 14 days of admission. Section 136 allows the police to remove individuals from public places and take them to a place of safety, such as a Mental Health Unit or Accident and Emergency. Section 3 allows for compulsory admission and treatment of individuals who pose risks to self or others and refuse voluntary admission. It requires an application from the patient’s nearest relative or an AMHP and two medical recommendations. It lasts up to 6 months and can be appealed within the first 6 months and then once a year. Section 4 is an emergency section that allows for detention in hospital for up to 72 hours and requires an application from an AMHP or the patient’s nearest relative and one medical recommendation. It can be converted to Section 2 if a second medical recommendation is obtained within 72 hours and should only be used in urgent cases.

    • This question is part of the following fields:

      • Psychiatry
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  • Question 21 - A 35-year-old woman presents to you with concerns about her migraine prophylaxis medication...

    Incorrect

    • A 35-year-old woman presents to you with concerns about her migraine prophylaxis medication and its potential effects on her unborn child. She reports that her migraines used to occur 1-2 times per week, but since starting the medication, they have decreased to 1-2 times per month. Which medication commonly used for migraine prophylaxis is associated with congenital abnormalities, specifically cleft lip and palate?

      Your Answer:

      Correct Answer: Topiramate

      Explanation:

      If a person experiences more than 2 migraine attacks a month, they should be offered migraine prophylaxis. Propranolol and topiramate are both options for this, but propranolol is preferred for women of child-bearing age due to the risk of cleft lip/cleft palate in infants if topiramate is used during the first trimester of pregnancy. The combined oral contraceptive pill is not typically prescribed for migraines, and if a patient using it becomes pregnant, it will not harm the fetus. Triptan medications like sumatriptan and zolmitriptan are used for acute migraine treatment and should be taken as soon as a migraine starts. They may also be used for menstrual migraine prophylaxis, but should be avoided during pregnancy due to limited safety data.

      Managing Migraines: Guidelines and Treatment Options

      Migraines can be debilitating and affect a significant portion of the population. To manage migraines, it is important to understand the different treatment options available. According to the National Institute for Health and Care Excellence (NICE) guidelines, acute treatment for migraines involves a combination of an oral triptan and an NSAID or paracetamol. For young people aged 12-17 years, a nasal triptan may be preferred. If these measures are not effective, non-oral preparations of metoclopramide or prochlorperazine may be considered, along with a non-oral NSAID or triptan.

      Prophylaxis should be given if patients are experiencing two or more attacks per month. NICE recommends topiramate or propranolol, depending on the patient’s preference, comorbidities, and risk of adverse events. Propranolol is preferred in women of childbearing age as topiramate may be teratogenic and reduce the effectiveness of hormonal contraceptives. Acupuncture and riboflavin may also be effective in reducing migraine frequency and intensity for some people. For women with predictable menstrual migraines, frovatriptan or zolmitriptan may be recommended as a type of mini-prophylaxis.

      Specialists may consider other treatment options, such as candesartan or monoclonal antibodies directed against the calcitonin gene-related peptide (CGRP) receptor, like erenumab. However, pizotifen is no longer recommended due to common adverse effects like weight gain and drowsiness. It is important to exercise caution with young patients as acute dystonic reactions may develop. By following these guidelines and considering various treatment options, migraines can be effectively managed.

    • This question is part of the following fields:

      • Reproductive Medicine
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  • Question 22 - A 92-year-old male was admitted to the stroke ward with right-sided facial droop...

    Incorrect

    • A 92-year-old male was admitted to the stroke ward with right-sided facial droop and hemiplegia. CT head revealed a significant infarct in the left middle cerebral artery. The patient has finished a 2-week course of high-dose aspirin (300mg) for the management of an acute ischemic stroke. What is the best choice for secondary prevention?

      Your Answer:

      Correct Answer: Switch to clopidogrel

      Explanation:

      The preferred antiplatelet for secondary prevention following a stroke is clopidogrel 75mg, as it reduces the risk of major adverse cardiovascular events. It is recommended for patients who have had a transient ischaemic attack or confirmed stroke after two weeks of high-dose aspirin. Low-dose aspirin (75mg) and modified-release dipyridamole can be used as an alternative if clopidogrel is contraindicated. High-dose aspirin (300 mg) is only indicated in the first 2 weeks after an acute ischaemic stroke. Anticoagulants such as DOACs and warfarin are used to prevent clot formation and embolisation in patients with atrial fibrillation (AF) to reduce the risk of stroke. However, since there is no evidence of AF in this patient, these options are not applicable.

      The Royal College of Physicians (RCP) and NICE have published guidelines on the diagnosis and management of patients following a stroke. The management of acute stroke includes maintaining normal levels of blood glucose, hydration, oxygen saturation, and temperature. Blood pressure should not be lowered in the acute phase unless there are complications. Aspirin should be given as soon as possible if a haemorrhagic stroke has been excluded. Anticoagulants should not be started until brain imaging has excluded haemorrhage. Thrombolysis with alteplase should only be given if administered within 4.5 hours of onset of stroke symptoms and haemorrhage has been definitively excluded. Mechanical thrombectomy is a new treatment option for patients with an acute ischaemic stroke. NICE recommends thrombectomy for people who have acute ischaemic stroke and confirmed occlusion of the proximal anterior circulation demonstrated by computed tomographic angiography or magnetic resonance angiography. Secondary prevention includes the use of clopidogrel and dipyridamole. Carotid artery endarterectomy should only be considered if carotid stenosis is greater than 70% according to ECST criteria or greater than 50% according to NASCET criteria.

    • This question is part of the following fields:

      • Neurology
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  • Question 23 - A 23-year-old female patient visits the ophthalmologist complaining of painful red eyes. Upon...

    Incorrect

    • A 23-year-old female patient visits the ophthalmologist complaining of painful red eyes. Upon examination, the ophthalmologist diagnoses her with bilateral anterior uveitis. During the medical history, the patient reveals that she has been experiencing a persistent dry cough and has visited her GP several times. The ophthalmologist orders blood tests and a chest x-ray, which reveal elevated angiotensin-converting enzyme levels and bilateral hilar lymphadenopathy. What is the underlying cause of uveitis in this patient?

      Your Answer:

      Correct Answer: Sarcoidosis

      Explanation:

      Sarcoidosis may present as bilateral anterior uveitis in young adults, making it an important early consideration. Recurrent uveitis in both eyes, along with a history of pulmonary issues, should prompt investigation for sarcoidosis. The other options, which do not involve a dry cough, are not relevant. Rheumatoid arthritis affects small joints in the hands, feet, and wrists, while ankylosing spondylitis primarily affects the spine with symptoms of back pain and stiffness, neither of which are mentioned in this scenario.

      Anterior uveitis, also known as iritis, is a type of inflammation that affects the iris and ciliary body in the front part of the uvea. It is a common cause of red eye and is associated with HLA-B27, which may also be linked to other conditions. Symptoms of anterior uveitis include sudden onset of eye discomfort and pain, small or irregular pupils, intense sensitivity to light, blurred vision, redness, tearing, and the presence of pus and inflammatory cells in the front part of the eye. This condition may be associated with ankylosing spondylitis, reactive arthritis, ulcerative colitis, Crohn’s disease, Behcet’s disease, and sarcoidosis. Urgent review by an ophthalmologist is necessary, and treatment may involve the use of cycloplegics and steroid eye drops.

    • This question is part of the following fields:

      • Ophthalmology
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  • Question 24 - A middle-aged business executive presents with a red hot, swollen and very painful...

    Incorrect

    • A middle-aged business executive presents with a red hot, swollen and very painful right big toe. Joint aspiration reveals no organisms, but there are numerous neutrophils containing long needle-shaped crystals.
      Which of the following is the most likely diagnosis?

      Your Answer:

      Correct Answer: Gouty arthritis

      Explanation:

      Gout is a crystal arthropathy caused by hyperuricaemia, most commonly affecting middle-aged men. Diagnosis is confirmed by aspiration and examination of joint fluid. Treatment is with high-dose NSAIDs or coxibs initially, followed by allopurinol in the long term. RA presents as an acute monoarticular arthritis in only 10% of cases, and is more common in women between the ages of 35 and 55. Septic arthritis and gonococcal arthritis are bacterial infections that present with a hot, red, swollen joint and constitutional symptoms. Reactive arthritis is a sterile arthritis occurring following an infection, usually presenting as an acute, asymmetrical lower limb arthritis.

    • This question is part of the following fields:

      • Musculoskeletal
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  • Question 25 - A 50-year-old man who is being treated for schizophrenia with chlorpromazine experiences involuntary...

    Incorrect

    • A 50-year-old man who is being treated for schizophrenia with chlorpromazine experiences involuntary puckering of the lips. Which side effect of antipsychotic medication does this exemplify?

      Your Answer:

      Correct Answer: Tardive dyskinesia

      Explanation:

      Tardive dyskinesia can be caused by antipsychotics.

      Antipsychotics are a group of drugs used to treat schizophrenia, psychosis, mania, and agitation. They are divided into two categories: typical and atypical antipsychotics. The latter were developed to address the extrapyramidal side-effects associated with the first generation of typical antipsychotics. Typical antipsychotics work by blocking dopaminergic transmission in the mesolimbic pathways through dopamine D2 receptor antagonism. They are associated with extrapyramidal side-effects and hyperprolactinaemia, which are less common with atypical antipsychotics.

      Extrapyramidal side-effects (EPSEs) are common with typical antipsychotics and include Parkinsonism, acute dystonia, sustained muscle contraction, akathisia, and tardive dyskinesia. The latter is a late onset of choreoathetoid movements that may be irreversible and occur in 40% of patients. The Medicines and Healthcare products Regulatory Agency has issued specific warnings when antipsychotics are used in elderly patients, including an increased risk of stroke and venous thromboembolism. Other side-effects include antimuscarinic effects, sedation, weight gain, raised prolactin, impaired glucose tolerance, neuroleptic malignant syndrome, reduced seizure threshold, and prolonged QT interval.

    • This question is part of the following fields:

      • Psychiatry
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  • Question 26 - A 42-year-old man comes in with an ongoing itchy rash that has been...

    Incorrect

    • A 42-year-old man comes in with an ongoing itchy rash that has been present for a few weeks. During examination, he displays erythematous, scaly lesions beneath his eyebrows, around his nose, and at the top of his chest. He also has a history of dandruff that he manages well with over-the-counter shampoos. What is the best course of treatment for the lesions on his face and trunk?

      Your Answer:

      Correct Answer: Topical ketoconazole

      Explanation:

      Seborrhoeic dermatitis is typically characterized by a scaly rash around the peri-orbital and nasolabial areas, as well as dandruff. The recommended initial treatment is topical ketoconazole.

      Understanding Seborrhoeic Dermatitis in Adults

      Seborrhoeic dermatitis is a chronic skin condition that affects around 2% of the general population. It is caused by an inflammatory reaction related to the overgrowth of a fungus called Malassezia furfur, which is a normal inhabitant of the skin. The condition is characterized by eczematous lesions that appear on the sebum-rich areas of the body, such as the scalp, periorbital, auricular, and nasolabial folds. It can also lead to the development of otitis externa and blepharitis.

      Seborrhoeic dermatitis is often associated with other medical conditions, such as HIV and Parkinson’s disease. The management of the condition depends on the affected area. For scalp disease, over-the-counter preparations containing zinc pyrithione and tar are usually the first-line treatment. If these are not effective, ketoconazole is the preferred second-line agent. Selenium sulphide and topical corticosteroids may also be useful.

      For the face and body, topical antifungals such as ketoconazole and topical steroids are often used. However, it is important to use steroids for short periods only to avoid side effects. Seborrhoeic dermatitis can be difficult to treat, and recurrences are common. Therefore, it is important to work closely with a healthcare provider to manage the condition effectively.

    • This question is part of the following fields:

      • Dermatology
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  • Question 27 - A 25-year-old woman presents with recurrent syncope following aerobics classes. On examination, a...

    Incorrect

    • A 25-year-old woman presents with recurrent syncope following aerobics classes. On examination, a systolic murmur is heard that worsens with the Valsalva manoeuvre and improves on squatting. What is the most likely diagnosis?

      Your Answer:

      Correct Answer: Hypertrophic cardiomyopathy (HCM)

      Explanation:

      Differentiating Causes of Syncope: A Guide

      Syncope, or fainting, can be caused by a variety of underlying conditions. One such condition is hypertrophic cardiomyopathy (HCM), which often presents with syncope following exercise. Patients with HCM may also have a mid-systolic murmur and a jerky pulse, which worsens with Valsalva but improves with squatting.

      Atrial fibrillation, on the other hand, typically presents with palpitations, fatigue, or shortness of breath, but not syncope. It does not cause a murmur and results in an irregularly irregular pulse.

      Epilepsy is not a common cause of syncope, as typical seizures involve loss of consciousness, tensing, shaking, and postictal fatigue.

      Aortic stenosis can cause dizziness and syncope, and is usually associated with angina. The murmur associated with aortic stenosis is a crescendo-decrescendo murmur that radiates to the carotids.

      A vasovagal attack, while it can cause syncope, would not cause a murmur. If syncope is recurrent, other causes should be sought.

      Dyspnea is a common complaint in patients with HCM, but they may also experience angina or syncope. A left ventricular apical impulse, a prominent S4 gallop, and a harsh systolic ejection murmur are typical findings. The Valsalva maneuver can increase the murmur. An echocardiogram is the diagnostic procedure of choice.

      Most patients with aortic stenosis have gradually increasing obstruction for years but do not become symptomatic until their sixth to eighth decades.

    • This question is part of the following fields:

      • Cardiovascular
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  • Question 28 - A 30-year-old woman presents with a productive cough, weight loss, and night sweats,...

    Incorrect

    • A 30-year-old woman presents with a productive cough, weight loss, and night sweats, four months after returning from India. She is diagnosed with pulmonary tuberculosis and started on appropriate antibiotics. However, six weeks into her treatment, she experiences numbness and tingling in her distal extremities, a known side effect of isoniazid. What medication should have been prescribed alongside her antibiotic regimen to minimize this side effect?

      Your Answer:

      Correct Answer: Pyridoxine

      Explanation:

      To treat active tuberculosis, isoniazid is often prescribed alongside other antibiotics such as rifampicin, ethambutol, or pyrazinamide. However, it is important to note that isoniazid alone does not protect against peripheral neuropathy, a potential side effect of tuberculosis treatment.

      Rifampicin is an antibiotic that can increase the rate of B6 excretion, which may lead to a deficiency in some individuals.

      Ethambutol is another antibiotic used to treat tuberculosis, but it can cause a loss of visual acuity and color blindness.

      Prednisolone is typically only prescribed for meningeal or pericardial tuberculosis and can cause side effects such as mood changes, weight gain, and immunosuppression.

      Pyrazinamide is another antibiotic used to treat tuberculosis, but it can cause liver toxicity.

      Side-Effects and Mechanism of Action of Tuberculosis Drugs

      Rifampicin is a drug that inhibits bacterial DNA dependent RNA polymerase, which prevents the transcription of DNA into mRNA. However, it is a potent liver enzyme inducer and can cause hepatitis, orange secretions, and flu-like symptoms.

      Isoniazid, on the other hand, inhibits mycolic acid synthesis. It can cause peripheral neuropathy, which can be prevented with pyridoxine (Vitamin B6). It can also cause hepatitis and agranulocytosis. Additionally, it is a liver enzyme inhibitor.

      Pyrazinamide is converted by pyrazinamidase into pyrazinoic acid, which in turn inhibits fatty acid synthase (FAS) I. However, it can cause hyperuricaemia, leading to gout, as well as arthralgia, myalgia, and hepatitis.

      Lastly, Ethambutol inhibits the enzyme arabinosyl transferase, which polymerizes arabinose into arabinan. It can cause optic neuritis, so it is important to check visual acuity before and during treatment. Additionally, the dose needs adjusting in patients with renal impairment.

      In summary, these tuberculosis drugs have different mechanisms of action and can cause various side-effects. It is important to monitor patients closely and adjust treatment accordingly to ensure the best possible outcomes.

    • This question is part of the following fields:

      • Pharmacology/Therapeutics
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  • Question 29 - A 48-year-old man is attending the hypertension clinic. He was diagnosed approximately three...

    Incorrect

    • A 48-year-old man is attending the hypertension clinic. He was diagnosed approximately three months ago and commenced on ramipril. Despite titrating up to 10mg od, his blood pressure remains at 156/92 mmHg. What is the next best course of action in managing his hypertension?

      Your Answer:

      Correct Answer: Add amlodipine OR indapamide

      Explanation:

      To improve control of hypertension in patients who are already taking an ACE inhibitor or an angiotensin receptor blocker, the 2019 NICE guidelines recommend adding either a calcium channel blocker (such as amlodipine) or a thiazide-like diuretic (such as indapamide). This is a change from previous guidelines, which only recommended adding a calcium channel blocker in this situation.

      NICE Guidelines for Managing Hypertension

      Hypertension, or high blood pressure, is a common condition that can lead to serious health problems if left untreated. The National Institute for Health and Care Excellence (NICE) has published updated guidelines for the management of hypertension in 2019. Some of the key changes include lowering the threshold for treating stage 1 hypertension in patients under 80 years old, allowing the use of angiotensin receptor blockers instead of ACE inhibitors, and recommending the use of a calcium channel blocker or thiazide-like diuretic in addition to an ACE inhibitor or angiotensin receptor blocker.

      The guidelines also provide a flow chart for the diagnosis and management of hypertension. Lifestyle advice, such as reducing salt intake, caffeine intake, and alcohol consumption, as well as exercising more and losing weight, should not be forgotten and is frequently tested in exams. Treatment options depend on the patient’s age, ethnicity, and other factors, and may involve a combination of drugs.

      NICE recommends treating stage 1 hypertension in patients under 80 years old if they have target organ damage, established cardiovascular disease, renal disease, diabetes, or a 10-year cardiovascular risk equivalent to 10% or greater. For patients with stage 2 hypertension, drug treatment should be offered regardless of age. The guidelines also provide step-by-step treatment options, including adding a third or fourth drug if necessary.

      New drugs, such as direct renin inhibitors like Aliskiren, may have a role in patients who are intolerant of more established antihypertensive drugs. However, trials have only investigated the fall in blood pressure and no mortality data is available yet. Patients who fail to respond to step 4 measures should be referred to a specialist. The guidelines also provide blood pressure targets for different age groups.

    • This question is part of the following fields:

      • Cardiovascular
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  • Question 30 - Which of the following is an absolute contraindication to using combined oral contraceptive...

    Incorrect

    • Which of the following is an absolute contraindication to using combined oral contraceptive pills?

      Your Answer:

      Correct Answer: 36-year-old woman smoking 20 cigarettes/day

      Explanation:

      The decision to prescribe the combined oral contraceptive pill is now based on the UK Medical Eligibility Criteria (UKMEC), which categorizes potential contraindications and cautions on a four-point scale. UKMEC 1 indicates no restrictions for use, while UKMEC 2 suggests that the benefits outweigh the risks. UKMEC 3 indicates that the disadvantages may outweigh the advantages, and UKMEC 4 represents an unacceptable health risk. Examples of UKMEC 3 conditions include controlled hypertension, a family history of thromboembolic disease in first-degree relatives under 45 years old, and current gallbladder disease. Examples of UKMEC 4 conditions include a history of thromboembolic disease or thrombogenic mutation, breast cancer, and uncontrolled hypertension. Diabetes mellitus diagnosed over 20 years ago is classified as UKMEC 3 or 4 depending on severity. In 2016, breast feeding between 6 weeks and 6 months postpartum was changed from UKMEC 3 to UKMEC 2.

    • This question is part of the following fields:

      • Reproductive Medicine
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SESSION STATS - PERFORMANCE PER SPECIALTY

Dermatology (1/1) 100%
Ophthalmology (0/1) 0%
ENT (1/1) 100%
Reproductive Medicine (1/1) 100%
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