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Question 1
Incorrect
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A 32-year-old woman complains of right elbow discomfort for a few weeks. Upon examination, there is tenderness on the lateral aspect of the forearm and pain on passive extension of the wrist, with the elbow fully extended. What is the most probable cause?
Your Answer: Golfer’s elbow
Correct Answer: Tennis elbow
Explanation:Tennis elbow is inflammation of the wrist extensor tendon at the insertion site into the lateral epicondyle, causing elbow pain that radiates down the forearm. Cubital tunnel syndrome is compression of the ulnar nerve at the elbow, causing sensory changes and weakness of hand muscles. Carpal tunnel syndrome is compression of the median nerve at the wrist, causing paraesthesia and motor deficits in the first three digits. Golfer’s elbow is inflammation of the wrist flexor tendon at the site of insertion into the medial epicondyle, causing elbow pain that radiates into the forearm. Olecranon bursitis is inflammation of the bursa overlying the olecranon process, causing a swelling that may be tender or painless.
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This question is part of the following fields:
- Musculoskeletal
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Question 2
Incorrect
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A 63-year-old man presents to you after experiencing his first TIA. He states that he is typically in good health and was surprised to learn that he had suffered a 'mini stroke.' He is eager to resume his normal daily routine and is curious about when he can safely operate his vehicle once more.
What guidance would you offer him?Your Answer:
Correct Answer: Can start driving if symptom free after 1 month - no need to inform the DVLA
Explanation:Group 1 drivers do not need to inform the DVLA and can resume driving after being symptom-free for one month following a single TIA.
The DVLA has guidelines for drivers with neurological disorders. Those with epilepsy/seizures must not drive and must inform the DVLA. The length of time off driving varies depending on the type and frequency of seizures. Those with syncope may need time off driving depending on the cause and number of episodes. Those with other conditions such as stroke, craniotomy, pituitary tumor, narcolepsy/cataplexy, and chronic neurological disorders should inform the DVLA and may need time off driving.
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This question is part of the following fields:
- Neurology
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Question 3
Incorrect
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An elderly woman of 74 years old comes in with a vesicular rash surrounding her left eye. The eye appears red and she is experiencing some sensitivity to light. The initial diagnosis is herpes zoster ophthalmicus and an immediate referral to ophthalmology is arranged. What is the probable treatment she will receive?
Your Answer:
Correct Answer: Oral aciclovir
Explanation:If systemic therapy is administered, topical antivirals are unnecessary. However, secondary inflammation may be treated with topical corticosteroids.
Herpes Zoster Ophthalmicus: Symptoms, Treatment, and Complications
Herpes zoster ophthalmicus (HZO) is a condition that occurs when the varicella-zoster virus reactivates in the area supplied by the ophthalmic division of the trigeminal nerve. It is responsible for approximately 10% of shingles cases. The main symptom of HZO is a vesicular rash around the eye, which may or may not involve the eye itself. Hutchinson’s sign, a rash on the tip or side of the nose, is a strong indicator of nasociliary involvement and increases the risk of ocular involvement.
Treatment for HZO involves oral antiviral medication for 7-10 days, ideally started within 72 hours of symptom onset. Intravenous antivirals may be necessary for severe infections or immunocompromised patients. Topical antiviral treatment is not recommended for HZO, but topical corticosteroids may be used to treat any secondary inflammation of the eye. Ocular involvement requires urgent ophthalmology review to prevent complications such as conjunctivitis, keratitis, episcleritis, anterior uveitis, ptosis, and post-herpetic neuralgia.
In summary, HZO is a condition caused by the reactivation of the varicella-zoster virus in the ophthalmic division of the trigeminal nerve. It presents with a vesicular rash around the eye and may involve the eye itself. Treatment involves oral antiviral medication and urgent ophthalmology review is necessary for ocular involvement. Complications of HZO include various eye conditions, ptosis, and post-herpetic neuralgia.
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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 49-year-old male comes to the emergency department complaining of progressive weakness in both legs that started with leg pain a week ago. Upon examination, there is a decrease in patellar reflex bilaterally, and the patient has 3/5 strength throughout the neurological examination in the lower limbs bilaterally, but normal sensation. The patient has no significant medical history and is not taking any regular medications. What is the most probable organism responsible for his symptoms?
Your Answer:
Correct Answer: Campylobacter jejuni
Explanation:The patient in this scenario is experiencing leg or back pain before the onset of weakness, which is a common symptom of Guillain-Barre syndrome. The ascending weakness of the legs, along with reduced reflexes and normal sensation, is a typical presentation of this disease.
Escherichia coli is a frequent cause of traveller’s diarrhoea and gastroenteritis, but it is not associated with Guillain-Barre syndrome.
Coxsackievirus is the most common cause of viral meningitis in adults, but it is not linked to Guillain-Barre syndrome.
Herpes simplex virus causes genital and labial sores, but it does not play a role in the development of this disease.
Understanding Guillain-Barre Syndrome and Miller Fisher Syndrome
Guillain-Barre syndrome is a condition that affects the peripheral nervous system and is often triggered by an infection, particularly Campylobacter jejuni. The immune-mediated demyelination of the peripheral nervous system occurs due to the cross-reaction of antibodies with gangliosides. Studies have shown a correlation between the clinical features of the syndrome and the presence of anti-ganglioside antibodies, particularly anti-GM1 antibodies, which are present in 25% of patients.
Miller Fisher syndrome is a variant of Guillain-Barre syndrome that is characterized by ophthalmoplegia, areflexia, and ataxia. Unlike other forms of Guillain-Barre syndrome, Miller Fisher syndrome usually presents as a descending paralysis, with the eye muscles typically affected first. In 90% of cases, anti-GQ1b antibodies are present.
Understanding the pathogenesis and clinical features of Guillain-Barre syndrome and Miller Fisher syndrome is crucial for accurate diagnosis and effective treatment. Further research is needed to fully understand the mechanisms behind these conditions and to develop more targeted therapies.
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This question is part of the following fields:
- Neurology
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Question 5
Incorrect
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A 14-year-old girl presents to the GP with concerns regarding menstruation, as she has not yet started her periods. She has no past medical history.
On examination, there is little to no axillary or pubic hair, and she has a tall stature. Bilateral lower pelvic masses are noted. Her BMI is 19 kg/m².
Investigations are performed:
Hb 130 g/L (115 - 160)
Platelets 200 * 109/L (150 - 400)
WBC 5.7 * 109/L (4.0 - 11.0)
FSH 9 IU/L (1 - 12)
LH 7 IU/L (1 - 9)
Testosterone 100 ng/dL (15-70)
Estradiol 30 pg/mL (30 - 400)
What is the most likely diagnosis?Your Answer:
Correct Answer: Androgen insensitivity syndrome
Explanation:The most likely diagnosis for this patient is androgen insensitivity syndrome (AIS). This is because she has not started menstruating by the age of 15, has little to no axillary or pubic hair, and elevated testosterone levels. These symptoms are all indicative of AIS, which is a genetic condition where individuals with male chromosomes (46XY) have a female appearance due to their body’s resistance to testosterone. The lower pelvic masses seen on examination are likely to be undescended testes.
Congenital adrenal hyperplasia (CAH) is an unlikely diagnosis as it typically causes excess male-pattern hair growth, including axillary and pubic hair, which is not seen in this patient. Additionally, CAH would not explain the presence of the lower pelvic masses.
Functional hypothalamic amenorrhoea is also unlikely as this condition is typically associated with low body weight, which is not the case for this patient. Furthermore, her FSH and LH levels are within the normal range, indicating that there is no hypothalamic dysfunction.
Polycystic ovarian syndrome (PCOS) is an unlikely diagnosis as it typically causes irregular periods rather than a complete absence of menstruation. Additionally, patients with PCOS often have excessive hair growth, which is not seen in this patient. PCOS would also not explain the presence of the lower pelvic masses.
Understanding Androgen Insensitivity Syndrome
Androgen insensitivity syndrome is a genetic condition that affects individuals with an XY genotype, causing them to develop a female phenotype due to their body’s resistance to testosterone. This condition was previously known as testicular feminization syndrome. The main features of this condition include primary amenorrhea, little or no pubic and axillary hair, undescended testes leading to groin swellings, and breast development due to the conversion of testosterone to estrogen.
Diagnosis of androgen insensitivity syndrome can be made through a buccal smear or chromosomal analysis, which reveals a 46XY genotype. After puberty, testosterone levels in affected individuals are typically in the high-normal to slightly elevated range for postpubertal boys.
Management of androgen insensitivity syndrome involves counseling and raising the child as female. Bilateral orchidectomy is recommended to reduce the risk of testicular cancer due to undescended testes. Additionally, estrogen therapy may be used to promote the development of secondary sexual characteristics.
In summary, androgen insensitivity syndrome is a genetic condition that affects the development of individuals with an XY genotype, causing them to develop a female phenotype. Early diagnosis and management can help affected individuals lead healthy and fulfilling lives.
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This question is part of the following fields:
- Reproductive Medicine
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Question 6
Incorrect
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A 30-year-old female patient arrives at the Emergency Department with a two-day history of fever, headache, vomiting, and seizures. She has no significant medical history or allergies. Upon CT head examination, hypodensity of the left temporal lobe is identified, while a lumbar puncture reveals lymphocytes at 57 cells/µL (0-5 cells/µL), protein at 92 mg/100 mL (15-60 mg/100 mL), and glucose at 66 mg/100 mL (50-80 mg/100 mL). Serum blood glucose is normal. A brain MRI is subsequently performed, revealing prominent swelling and increased signal of the left temporal lobe and insular cortex. What is the urgent medication that must be initiated in this patient?
Your Answer:
Correct Answer: Aciclovir
Explanation:In cases of encephalitis caused by herpes simplex virus (HSV), urgent administration of IV aciclovir (which is effective against HSV) is necessary. Amantadine, which is used to manage influenza, is not appropriate. Cefotaxime, which is often used for suspected meningococcal disease, is also not appropriate. Fluconazole, an anti-fungal medication, is not appropriate as encephalitis is unlikely to be caused by a fungal infection.
Encephalitis: Symptoms, Causes, and Treatment
Encephalitis is a condition characterized by inflammation of the brain. It presents with symptoms such as fever, headache, psychiatric symptoms, seizures, and vomiting. Focal features such as aphasia may also be present. Peripheral lesions like cold sores are not related to the presence of HSV encephalitis. HSV-1 is responsible for 95% of cases in adults, and it typically affects the temporal and inferior frontal lobes.
To diagnose encephalitis, cerebrospinal fluid analysis is done, which shows lymphocytosis and elevated protein. PCR for HSV, VZV, and enteroviruses is also performed. Neuroimaging may reveal medial temporal and inferior frontal changes, such as petechial hemorrhages, but it is normal in one-third of patients. MRI is a better diagnostic tool. EEG may show lateralized periodic discharges at 2 Hz.
The treatment for encephalitis involves intravenous aciclovir, which should be started in all cases of suspected encephalitis. Early diagnosis and treatment are crucial in preventing complications and improving outcomes.
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This question is part of the following fields:
- Neurology
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Question 7
Incorrect
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A 32-year-old woman visits the Urgent Treatment Centre as she has discovered a tick-like insect attached to her ankle. She had been hiking in a nearby forest earlier today and is worried because her sister was diagnosed with Lyme disease after a similar experience.
There are no signs of inflammation or infection in the skin surrounding the tick.
What is the most suitable next step in managing this patient?
Your Answer:
Correct Answer: Remove the tick using fine-tipped tweezers, grasping the tick by the head as close to the skin as possible and pulling firmly upwards
Explanation:Proper Tick Removal Techniques and Treatment Options
Ticks are common parasites that can cause a range of illnesses, including Lyme disease. It is important to remove ticks properly to prevent infection. The best way to remove a tick is by using fine-tipped tweezers, grasping the tick as close to the skin as possible and pulling upwards firmly. This will prevent the body from detaching and leaving mouthparts in the skin. After removal, the bite area should be cleaned with antiseptic or soap and water. Irrigating the area with saline solution is not recommended as it may lead to partial removal of the tick. Prophylactic antibiotics are not recommended for tick bites, but antibiotics may be prescribed if a patient is diagnosed with Lyme disease. Vaccines for Lyme disease are not currently available. If there is a clear indication of infection, oral antibiotics may be prescribed. Proper tick removal and treatment can help prevent the spread of tick-borne illnesses.
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This question is part of the following fields:
- Immunology/Allergy
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Question 8
Incorrect
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A 70-year-old patient was discovered to have an abdominal aortic aneurysm during a routine medical check-up. The patient is currently receiving treatment for hypertension and high cholesterol but is otherwise healthy and medically capable. The aneurysm was infra-renal and had a diameter of 4.9 cm.
What is the best course of action for managing this patient?Your Answer:
Correct Answer: Ultrasound scan every three months
Explanation:Screening and Management of Abdominal Aortic Aneurysms
Abdominal aortic aneurysms (AAAs) are screened for initially by an ultrasound scan of the abdomen. Men are invited for an initial ultrasound during the year of their 65th birthday, while women are not routinely screened as AAA is predominantly found in men.
If the initial scan shows an AAA of less than 3 cm, patients are discharged. If it is between 3 and 4.4 cm, they are invited back for yearly screening. If it is between 4.5 and 5.4 cm, patients receive an ultrasound scan every three months. If the aneurysm is above 5.5 cm, patients are referred to a vascular surgeon for consideration for repair.
Elective surgery is recommended for aneurysms larger than 5.5 cm in diameter or those that are growing rapidly, as clinical trials have shown that the risk of rupture is increased when the aneurysm is larger than 5.5 cm. Immediate surgery is only performed on those aneurysms that are leaking or ruptured.
Surveillance is required to ensure the aneurysm remains below 5.5 cm. Patients with an aneurysm over 4.5 cm require an ultrasound scan every three months. Once the aneurysm reaches 5.5 cm, patients are referred for consideration of elective surgery.
Managing Abdominal Aortic Aneurysms: Screening and Treatment Guidelines
Abdominal aortic aneurysms (AAAs) are a serious health concern that require careful management. This article outlines the screening and treatment guidelines for AAAs.
Screening for AAAs is done initially by an ultrasound scan of the abdomen. Men are invited for an initial ultrasound during the year of their 65th birthday, while women are not routinely screened. Patients with an AAA less than 3 cm are discharged, while those with an AAA between 3 and 4.4 cm are invited back for yearly screening. Patients with an AAA between 4.5 and 5.4 cm require an ultrasound scan every three months, while those with an AAA over 5.5 cm are referred to a vascular surgeon for consideration of elective surgery.
Elective surgery is recommended for aneurysms larger than 5.5 cm in diameter or those that are growing rapidly.
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This question is part of the following fields:
- Cardiovascular
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Question 9
Incorrect
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Male infertility in cystic fibrosis is mostly due to which of the following?
Your Answer:
Correct Answer: Obliteration or failure of development of the vas deferens
Explanation:Understanding the Reproductive and Sexual Health Implications of Cystic Fibrosis
Cystic fibrosis (CF) is a genetic disorder that affects multiple organs, including the lungs, pancreas, and reproductive system. In over 95% of male patients with CF, infertility is caused by the congenital absence or obliteration of the vas deferens, leading to azoospermia. However, advancements in fertility treatments and surgical techniques have made it possible for some male patients to conceive. Impotence is not a symptom of CF. With significant improvements in diagnosis and treatment, the median survival age of CF patients has increased to around 40 years, with some individuals living into their 60s. Delayed puberty is a common occurrence in both male and female CF patients, but it is not a cause of infertility. Decreased spermatogenesis is not typically seen in CF. Understanding the reproductive and sexual health implications of CF is crucial for patients and healthcare providers to provide appropriate care and support.
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This question is part of the following fields:
- Genetics
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Question 10
Incorrect
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A 54 year old woman presents to the General Practice clinic with complaints of increasing dyspepsia, dysphagia, and fatigue. She reports a prolonged history of dark brown stools, but denies any recent episodes of fresh blood. She has not experienced any unexplained weight loss and underwent surgery for a peptic ulcer a decade ago. Upon investigation, she is found to have H. pylori. What should be the subsequent course of action?
Your Answer:
Correct Answer: 2 week referral to endoscopy
Explanation:Management of Dyspepsia and Referral for Possible Cancer
Dyspepsia is a common symptom that can be caused by various factors, including medication and lifestyle choices. However, it can also be a sign of underlying conditions such as stomach or oesophageal cancer. The 2015 NICE guidelines provide updated advice on when urgent referral for endoscopy is necessary. Patients with dysphagia or an upper abdominal mass consistent with stomach cancer should be referred urgently. Patients aged 55 years or older with weight loss and upper abdominal pain, reflux, or dyspepsia should also be referred urgently. Non-urgent referrals include patients with haematemesis or those with treatment-resistant dyspepsia, upper abdominal pain with low haemoglobin levels, or raised platelet count with other symptoms.
For patients with undiagnosed dyspepsia, a step-wise approach is recommended. First, medications should be reviewed for possible causes. Lifestyle advice should also be given. If symptoms persist, a trial of full-dose proton pump inhibitor for one month or a ‘test and treat’ approach for H. pylori can be tried. If symptoms persist after either approach, the alternative should be attempted. Testing for H. pylori infection can be done using a carbon-13 urea breath test, stool antigen test, or laboratory-based serology. If symptoms resolve following test and treat, there is no need to check for H. pylori eradication. However, if repeat testing is required, a carbon-13 urea breath test should be used.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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