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Question 1
Correct
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A 50-year-old woman presents with complaints of hot flashes that occur randomly and are affecting her work as a lawyer, especially during court sessions. She is hesitant to try hormone replacement therapy due to its side effects and is seeking alternative options. What medication can be prescribed to alleviate her symptoms?
Your Answer: Fluoxetine
Explanation:According to NICE guidelines, women experiencing vasomotor symptoms during menopause can be prescribed fluoxetine, a selective serotonin uptake inhibitor (SSRI). While clonidine is also approved for treating these symptoms, its effectiveness is not well-established and it can cause side effects such as dry mouth, sedation, depression, and fluid retention. Gabapentin is being studied for its potential to reduce hot flushes, but more research is needed.
Managing Menopause: Lifestyle Modifications, Hormone Replacement Therapy, and Non-Hormone Replacement Therapy
Menopause is a natural biological process that marks the end of a woman’s reproductive years. It is diagnosed when a woman has not had a period for 12 consecutive months. Menopausal symptoms are common and can last for up to 7 years, with varying degrees of severity and duration. The management of menopause can be divided into three categories: lifestyle modifications, hormone replacement therapy (HRT), and non-hormone replacement therapy.
Lifestyle modifications can help manage menopausal symptoms such as hot flushes, sleep disturbance, mood changes, and cognitive symptoms. Regular exercise, weight loss, stress reduction, and good sleep hygiene are recommended. For women who cannot or do not want to take HRT, non-hormonal treatments such as fluoxetine, citalopram, or venlafaxine for vasomotor symptoms, vaginal lubricants or moisturizers for vaginal dryness, and cognitive behavior therapy or antidepressants for psychological symptoms can be prescribed.
HRT is a treatment option for women with moderate to severe menopausal symptoms. However, it is contraindicated in women with current or past breast cancer, any estrogen-sensitive cancer, undiagnosed vaginal bleeding, or untreated endometrial hyperplasia. HRT brings certain risks, including venous thromboembolism, stroke, coronary heart disease, breast cancer, and ovarian cancer. Women should be advised of these risks and the fact that symptoms typically last for 2-5 years.
When stopping HRT, it is important to gradually reduce the dosage to limit recurrence of symptoms in the short term. However, in the long term, there is no difference in symptom control. Women who experience ineffective treatment, ongoing side effects, or unexplained bleeding should be referred to secondary care. Overall, managing menopause requires a personalized approach that takes into account a woman’s medical history, preferences, and individual symptoms.
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This question is part of the following fields:
- Reproductive Medicine
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Question 2
Correct
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What is the failure rate of male sterilization?
Your Answer: 1 in 2,000
Explanation:Vasectomy: A Simple and Effective Male Sterilisation Method
Vasectomy is a male sterilisation method that has a failure rate of 1 per 2,000, making it more effective than female sterilisation. The procedure is simple and can be done under local anesthesia, with some cases requiring general anesthesia. After the procedure, patients can go home after a couple of hours. However, it is important to note that vasectomy does not work immediately.
To ensure the success of the procedure, semen analysis needs to be performed twice following a vasectomy before a man can have unprotected sex. This is usually done at 12 weeks after the procedure. While vasectomy is generally safe, there are some complications that may arise, such as bruising, hematoma, infection, sperm granuloma, and chronic testicular pain. This pain affects between 5-30% of men.
In the event that a man wishes to reverse the procedure, the success rate of vasectomy reversal is up to 55% if done within 10 years. However, the success rate drops to approximately 25% after more than 10 years. Overall, vasectomy is a simple and effective method of male sterilisation, but it is important to consider the potential complications and the need for semen analysis before engaging in unprotected sex.
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This question is part of the following fields:
- Reproductive Medicine
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Question 3
Correct
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As a general practice registrar, you are reviewing a patient who was referred to ENT and has a history of acoustic neuroma on the right side. The patient, who is in their mid-50s, returned 2 months ago with pulsatile tinnitus in the left ear and was diagnosed with a left-sided acoustic neuroma after undergoing an MRI scan. Surgery is scheduled for later this week. What is the probable cause of this patient's recurrent acoustic neuromas?
Your Answer: Neurofibromatosis type 2
Explanation:Neurofibromatosis type 2 is commonly linked to bilateral acoustic neuromas (vestibular schwannomas). Additionally, individuals with this condition may also experience benign neurological tumors and lens opacities.
Understanding Vestibular Schwannoma (Acoustic Neuroma)
Vestibular schwannoma, also known as acoustic neuroma, is a type of brain tumor that accounts for 5% of intracranial tumors and 90% of cerebellopontine angle tumors. The condition is characterized by a combination of symptoms such as vertigo, hearing loss, tinnitus, and an absent corneal reflex. The affected cranial nerves can predict the features of the condition. For instance, cranial nerve VIII can cause vertigo, unilateral sensorineural hearing loss, and unilateral tinnitus. On the other hand, cranial nerve V can lead to an absent corneal reflex, while cranial nerve VII can cause facial palsy.
Bilateral vestibular schwannomas are often seen in neurofibromatosis type 2. The diagnosis of vestibular schwannoma is made through an MRI of the cerebellopontine angle, and audiometry is also important since only 5% of patients have a normal audiogram.
The management of vestibular schwannoma involves surgery, radiotherapy, or observation. The choice of treatment depends on the size and location of the tumor, the patient’s age and overall health, and the severity of symptoms. In conclusion, understanding vestibular schwannoma is crucial in managing the condition effectively.
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This question is part of the following fields:
- ENT
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Question 4
Incorrect
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A 28-year-old woman comes to your clinic for a check-up. She is currently 16 weeks pregnant and has had no complications so far. During her visit, she mentions that her 4-year-old son was recently diagnosed with chickenpox. The patient is concerned about the potential impact on her pregnancy as she cannot recall if she had chickenpox as a child. What would be the appropriate course of action for this patient?
Your Answer: Arrange a blood test for varicella antibodies, then immediately commence varicella-zoster immunoglobulin (VZIG) and adjust once the result arrives
Correct Answer: Arrange a blood test for varicella antibodies and await the result
Explanation:In cases where a pregnant woman is exposed to chickenpox and her immunity status is uncertain, it is recommended to conduct a blood test to check for varicella antibodies. If she is found to be not immune and is over 20 weeks pregnant, either VZIG or aciclovir can be given. However, VZIG is the only option for those under 20 weeks pregnant and not immune. It is important to note that VZIG is effective up to 10 days post-exposure, so there is no need to administer it immediately after the blood test. Prescribing medication without confirming the patient’s immunity status is not recommended. Similarly, reassuring the patient and sending her away without following proper prophylaxis protocol is not appropriate. It is also important to note that the varicella-zoster vaccine is not currently part of the UK’s vaccination schedule and does not play a role in the management of pregnant women.
Chickenpox exposure in pregnancy can pose risks to both the mother and fetus, including fetal varicella syndrome. Post-exposure prophylaxis (PEP) with varicella-zoster immunoglobulin (VZIG) or antivirals should be given to non-immune pregnant women, with timing dependent on gestational age. If a pregnant woman develops chickenpox, specialist advice should be sought and oral aciclovir may be given if she is ≥ 20 weeks and presents within 24 hours of onset of the rash.
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This question is part of the following fields:
- Reproductive Medicine
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Question 5
Correct
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A 35-year-old female patient complains of recurring episodes of vertigo accompanied by a sensation of 'fullness' and 'pressure' in her ears. She believes her hearing is impaired during these episodes. Physical examination reveals no abnormalities. What is the probable diagnosis?
Your Answer: Meniere's disease
Explanation:Understanding Meniere’s Disease
Meniere’s disease is a condition that affects the inner ear and its cause is still unknown. It is more commonly seen in middle-aged adults but can occur at any age and affects both men and women equally. The condition is characterized by excessive pressure and progressive dilation of the endolymphatic system. The most prominent symptoms of Meniere’s disease are recurrent episodes of vertigo, tinnitus, and sensorineural hearing loss. Other symptoms include a sensation of aural fullness or pressure, nystagmus, and a positive Romberg test. These episodes can last from minutes to hours and are typically unilateral, but bilateral symptoms may develop over time.
The natural history of Meniere’s disease shows that symptoms usually resolve in the majority of patients after 5-10 years. However, most patients are left with some degree of hearing loss, and psychological distress is common. To manage the condition, an ENT assessment is required to confirm the diagnosis. Patients should inform the DVLA, and the current advice is to cease driving until satisfactory control of symptoms is achieved. During acute attacks, buccal or intramuscular prochlorperazine may be administered, and admission to the hospital may be required. To prevent future attacks, betahistine and vestibular rehabilitation exercises may be of benefit.
In summary, Meniere’s disease is a condition that affects the inner ear and can cause recurrent episodes of vertigo, tinnitus, and hearing loss. While the cause is unknown, there are management strategies available to help control symptoms and prevent future attacks. It is important for patients to seek medical attention and inform the DVLA to ensure their safety and well-being.
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This question is part of the following fields:
- ENT
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Question 6
Incorrect
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Which of the following is not a risk factor for gastric cancer?
Your Answer: Blood group A
Correct Answer: History of duodenal ulceration
Explanation:Gastric Cancer: Risk Factors, Features, Investigations, and Management
Gastric cancer is a relatively uncommon cancer, accounting for only 2% of all cancer diagnoses in developed countries. It is more prevalent in older individuals, with half of patients being over 75 years old, and has a higher incidence in males. Risk factors for gastric cancer include Helicobacter pylori infection, atrophic gastritis, dietary factors such as salt and nitrate consumption, smoking, and blood group.
Symptoms of gastric cancer can be vague and include abdominal pain, dyspepsia, weight loss, anorexia, nausea, vomiting, and dysphagia. Overt upper gastrointestinal bleeding is rare. If the cancer has spread to the lymph nodes, Virchow’s node and Sister Mary Joseph’s node may be affected.
Diagnosis of gastric cancer is typically made through oesophago-gastro-duodenoscopy with biopsy. Signet ring cells may be present in gastric cancer, and a higher number of these cells is associated with a worse prognosis. Staging is done through CT scans.
Management of gastric cancer depends on the extent and location of the cancer. Surgical options include endoscopic mucosal resection, partial gastrectomy, and total gastrectomy. Chemotherapy may also be used.
Overall, gastric cancer is a relatively rare cancer with specific risk factors and symptoms. Early diagnosis and appropriate management are crucial for improving outcomes.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 7
Correct
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What is the primary mode of operation of Nexplanon (etonogestrel contraceptive implant)?
Your Answer: Inhibition of ovulation
Explanation:The primary way in which Nexplanon works is by preventing ovulation.
Implanon and Nexplanon are subdermal contraceptive implants that slowly release the progestogen hormone etonogestrel to prevent ovulation and thicken cervical mucus. Nexplanon is the newer version and has a redesigned applicator to prevent deep insertions and is radiopaque for easier location. It is highly effective with a failure rate of 0.07/100 women-years and lasts for 3 years. It does not contain estrogen, making it suitable for women with a past history of thromboembolism or migraine. It can be inserted immediately after a termination of pregnancy. However, a trained professional is needed for insertion and removal, and additional contraceptive methods are required for the first 7 days if not inserted on days 1 to 5 of a woman’s menstrual cycle.
The main disadvantage of these implants is irregular and heavy bleeding, which can be managed with a co-prescription of the combined oral contraceptive pill. Other adverse effects include headache, nausea, and breast pain. Enzyme-inducing drugs such as certain antiepileptic and rifampicin may reduce the efficacy of Nexplanon, and women should switch to a method unaffected by enzyme-inducing drugs or use additional contraception until 28 days after stopping the treatment.
There are also contraindications for using these implants, such as ischaemic heart disease/stroke, unexplained, suspicious vaginal bleeding, past breast cancer, severe liver cirrhosis, and liver cancer. Current breast cancer is a UKMEC 4 condition, which represents an unacceptable risk if the contraceptive method is used. Overall, these implants are a highly effective and long-acting form of contraception, but they require careful consideration of the potential risks and contraindications.
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This question is part of the following fields:
- Reproductive Medicine
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Question 8
Correct
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A father is worried about a swelling he has noticed on his two-day-old baby's head. The baby was delivered using forceps due to a prolonged second stage of labor. Upon examination, there is a swelling in the parietal region that does not cross the suture lines. The doctor informs him that it may take several weeks to resolve. What type of head injury is most likely responsible for this?
Your Answer: Cephalohaematoma
Explanation:A cephalohaematoma is a swelling that appears on a newborn’s head, usually a few hours after delivery. It is caused by bleeding between the skull and periosteum, with the parietal region being the most commonly affected site. This condition may lead to jaundice as a complication and can take up to three months to resolve.
In comparison to caput succedaneum, which is another type of swelling that can occur on a newborn’s head, cephalohaematoma is more localized and does not cross suture lines. Caput succedaneum, on the other hand, is a diffuse swelling that can cross suture lines and is caused by fluid accumulation in the scalp tissue. Both conditions are usually harmless and resolve on their own, but medical attention may be necessary in severe cases.
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This question is part of the following fields:
- Paediatrics
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Question 9
Correct
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A 28-year-old pregnant woman goes to her first prenatal appointment and is found to have a urinary tract infection based on a urine dipstick test. Despite being asymptomatic, which antibiotic should she steer clear of during the first trimester of pregnancy?
Your Answer: Trimethoprim
Explanation:Urinary tract infections in pregnancy should be treated to prevent pyelonephritis. Trimethoprim should be avoided in the first trimester due to teratogenicity risk. Erythromycin is not typically used for UTIs and nitrofurantoin should be avoided close to full term. Sulfonamides and quinolones should also be avoided in pregnancy.
Urinary tract infections (UTIs) are common in adults and can affect different parts of the urinary tract. The management of UTIs depends on various factors such as the patient’s age, gender, and pregnancy status. For non-pregnant women, local antibiotic guidelines should be followed if available. Trimethoprim or nitrofurantoin for three days are recommended by NICE Clinical Knowledge Summaries. However, if the patient is aged over 65 years or has visible or non-visible haematuria, a urine culture should be sent. Pregnant women with UTIs should be treated with nitrofurantoin, amoxicillin, or cefalexin for seven days. Trimethoprim should be avoided during pregnancy as it is teratogenic in the first trimester. Asymptomatic bacteriuria in pregnant women should also be treated to prevent progression to acute pyelonephritis. Men with UTIs should be offered a seven-day course of trimethoprim or nitrofurantoin unless prostatitis is suspected. A urine culture should be sent before antibiotics are started. Catheterised patients should not be treated for asymptomatic bacteria, but if symptomatic, a seven-day course of antibiotics should be given. Acute pyelonephritis requires hospital admission and treatment with a broad-spectrum cephalosporin or quinolone for 10-14 days. Referral to urology is not routinely required for men who have had one uncomplicated lower UTI.
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This question is part of the following fields:
- Reproductive Medicine
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Question 10
Incorrect
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Which one of the following is not a characteristic of essential tremor?
Your Answer: Titubation
Correct Answer: Autosomal recessive inheritance
Explanation:When arms are extended, essential tremor worsens, but it improves with the use of alcohol and propranolol. This is an autosomal dominant condition.
Understanding Essential Tremor
Essential tremor, also known as benign essential tremor, is a genetic condition that typically affects both upper limbs. The most common symptom is a postural tremor, which worsens when the arms are outstretched. However, the tremor can be improved by rest and alcohol consumption. Essential tremor is also the leading cause of head tremors, known as titubation.
When it comes to managing essential tremor, the first-line treatment is propranolol. This medication can help reduce the severity of the tremors. In some cases, primidone may also be used to manage the condition. It’s important to note that essential tremor is a lifelong condition, but with proper management, individuals can lead a normal life. By understanding the symptoms and treatment options, those with essential tremor can take control of their condition and improve their quality of life.
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This question is part of the following fields:
- Neurology
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Question 11
Incorrect
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A 24-year-old woman presents urgently to the hospital. She is 35 weeks pregnant and reports sudden onset of right-sided numbness and dysphasia. Initially, she experienced tingling in the right side of her face, which then spread to her right hand over a few minutes. Shortly after, she noticed difficulty finding words and her right arm felt clumsy. The entire episode resolved completely within 20-30 minutes. Upon arrival at the hospital, her neurological exam was normal.
What is the most likely diagnosis?Your Answer: Focal Onset Impaired Awareness Seizure
Correct Answer: Migraine aura without headache
Explanation:Migraine aura without headache is a condition where a person experiences the typical symptoms of a migraine aura, but without the accompanying headache. In some cases, a person may have multiple attacks with only an aura, while in rare cases, they may only experience the aura without a headache. To diagnose this condition, the International Headache Society requires the presence of one or more fully reversible aura symptoms, such as visual, sensory, speech and/or language, motor, brain stem, or retinal symptoms, along with at least two of the following characteristics: gradual spread of symptoms over more than 5 minutes, each symptom lasting between 5-60 minutes, and at least one symptom being unilateral. It can be difficult to distinguish an aura from a transient ischemic attack (TIA) in patients without a history of migraines, but the characteristic slow progression of symptoms is suggestive of migraine aura without headache. This condition is more commonly seen in patients with a previous history of migraines or a positive family history of migraines.
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This question is part of the following fields:
- Neurology
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Question 12
Correct
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Samantha, 74, visits her doctor complaining of jaundice. She is also a heavy drinker, consuming around 30-35 units per week. During the examination, a palpable gallbladder is detected, but there is no history of abdominal pain. The doctor orders blood tests, and the results are as follows:
- Albumin: 28 g/L
- Alk Phos: 320 U/L
- ALT: 90 U/L
- Bilirubin: 100 umol/L
- INR: 1.5
- GGT: 120 U/L
What is the most likely diagnosis for Samantha?Your Answer: Pancreatic cancer
Explanation:Pancreatic cancer is the correct answer for this question, as indicated by Courvoisier’s sign. This sign suggests that a painless, enlarged gallbladder and mild jaundice are unlikely to be caused by gallstones, but rather by a malignancy of the pancreas or biliary tree. While alcoholic hepatitis and primary biliary cirrhosis are possible differentials, the presence of a painless, enlarged gallbladder makes them less likely. Paracetamol overdose is not a likely cause, as it would not result in a painless, palpable gallbladder and jaundice is not typically associated with this type of overdose.
Understanding Pancreatic Cancer: Risk Factors, Symptoms, and Management
Pancreatic cancer is a type of cancer that is often diagnosed late due to its non-specific symptoms. Adenocarcinomas, which occur at the head of the pancreas, make up over 80% of pancreatic tumors. Risk factors for pancreatic cancer include increasing age, smoking, diabetes, chronic pancreatitis, hereditary non-polyposis colorectal carcinoma, and genetic mutations such as BRCA2 and KRAS.
Symptoms of pancreatic cancer can include painless jaundice, pale stools, dark urine, pruritus, anorexia, weight loss, epigastric pain, loss of exocrine and endocrine function, and atypical back pain. Migratory thrombophlebitis, also known as Trousseau sign, is more common in pancreatic cancer than in other cancers.
Diagnosis of pancreatic cancer can be made through ultrasound or high-resolution CT scanning, which may show the double duct sign – simultaneous dilatation of the common bile and pancreatic ducts. However, less than 20% of patients are suitable for surgery at diagnosis. A Whipple’s resection, or pancreaticoduodenectomy, may be performed for resectable lesions in the head of the pancreas. Adjuvant chemotherapy is usually given following surgery, and ERCP with stenting may be used for palliation.
In summary, pancreatic cancer is a serious disease with non-specific symptoms that can be difficult to diagnose. Understanding the risk factors and symptoms can help with early detection and management.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 13
Incorrect
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An 80-year-old male presents to the low-risk chest pain clinic with intermittent substernal chest pains. The pain typically comes on with exertion and improves with rest. A trial of GTN has been given by his GP which helps with his pain. He is a known ex-smoker of 35 pack-years. He has no diabetes, hyperlipidaemia, hypertension, and no family history of coronary artery disease.
During examination, his observations are stable. On auscultations of his chest, his first and second heart sounds are audible with no added sounds and his lungs are clear.
What investigation should be prioritized given his risk for coronary artery disease?Your Answer: Invasive coronary angiogram
Correct Answer: Contrast-enhanced coronary CT angiography
Explanation:The preferred initial diagnostic test for individuals with stable chest pain suspected to be caused by coronary artery disease is a CT coronary angiogram with contrast enhancement.
Assessment of Patients with Suspected Cardiac Chest Pain
When it comes to assessing patients with suspected cardiac chest pain, NICE has updated its guidelines in 2016. For patients presenting with acute chest pain, immediate management of suspected acute coronary syndrome (ACS) is crucial. This includes administering glyceryl trinitrate and aspirin 300 mg, but not other antiplatelet agents like Clopidogrel outside of the hospital. Oxygen therapy should not be routinely given, but only if sats are less than 94%. Referral depends on the timing of chest pain and ECG results. For patients presenting with stable chest pain, NICE defines anginal pain as constricting discomfort in the front of the chest, neck, shoulders, jaw, or arms, precipitated by physical exertion, and relieved by rest or GTN in about 5 minutes. Non-invasive functional imaging is recommended for patients in whom stable angina cannot be excluded by clinical assessment alone. Examples of non-invasive functional imaging include myocardial perfusion scintigraphy with single photon emission computed tomography (MPS with SPECT), stress echocardiography, first-pass contrast-enhanced magnetic resonance (MR) perfusion, or MR imaging for stress-induced wall motion abnormalities.
In summary, assessing patients with suspected cardiac chest pain requires immediate management for acute chest pain and referral based on timing and ECG results. For stable chest pain, NICE defines anginal pain and recommends non-invasive functional imaging for patients in whom stable angina cannot be excluded by clinical assessment alone.
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This question is part of the following fields:
- Cardiovascular
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Question 14
Correct
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A 35-year-old woman is admitted for an endoscopic retrograde cholangiopancreatography (ERCP) due to biliary colic. She has an uneventful procedure but is re-admitted the same night with severe abdominal pain.
On examination, she is tachycardic, short of breath, and has a pleural effusion on her chest X-ray (CXR).
Investigations reveal the following:
Investigation Result Normal value
C-reactive protein (CRP) 180 mg/l < 10 mg/l
White cell count (WCC) 15.0 × 109/l 4.0–11.0 × 109/l
Creatine (Cr) 140 µmol/l 50–120µmol/l
Urea 7.5mmol/l 2.5–6.5mmol/l
Phosphate (PO4-) 1.0mmol/l 0.8–1.5 mmol/l
Corrected Calcium (Ca2+) 0.8 mmol/l 2.20–2.60 mmol/l
What is her most likely diagnosis?Your Answer: Pancreatitis
Explanation:Understanding Complications of ERCP: Pancreatitis, Cholangitis, and More
ERCP (endoscopic retrograde cholangiopancreatography) is a common procedure used to diagnose and treat conditions of the bile ducts and pancreas. However, like any medical procedure, it carries risks and potential complications. One such complication is pancreatitis, which can present with non-specific symptoms but may be accompanied by hypocalcaemia. Immediate management includes confirming the diagnosis and severity of pancreatitis, intravenous fluid resuscitation, oxygen, and adequate analgesia. Another potential complication is ascending cholangitis, which can present with fever, jaundice, and abdominal pain. Biliary perforation is a serious but infrequent complication that is usually recognized during the procedure, while intestinal perforation is not an expected complication. A reaction to contrast would have occurred during the procedure. It is important to understand these potential complications and their symptoms in order to provide prompt and appropriate management.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 15
Incorrect
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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: Sildenafil
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.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 16
Correct
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A 45-year-old man who was previously healthy comes to the clinic complaining of increasing shortness of breath over the past four to five months. His father passed away a few years ago due to a lung disease. During the examination, the doctor notices an elevated jugular venous pressure and a palpable heave at the left sternal edge.
What is the most probable provisional diagnosis?Your Answer: Familial primary pulmonary hypertension
Explanation:Differential Diagnosis for Familial Primary Pulmonary Hypertension
Familial primary pulmonary hypertension is a rare condition that presents with breathlessness, fatigue, angina, or syncope. It has an autosomal dominant pattern of inheritance with incomplete penetrance and physical signs such as elevated JVP, left parasternal heave, pansystolic murmur, right ventricular S4, and peripheral edema. Without treatment, average survival is less than three years. While tricuspid regurgitation may be present, it is best explained in the context of a diagnosis of familial primary pulmonary hypertension. Chronic pulmonary thromboembolism is a more common differential diagnosis that should be considered. Constrictive pericarditis and pulmonary venous hypertension are unlikely diagnoses as they do not run in families. Clinical management requires a specialist with considerable expertise in the field.
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This question is part of the following fields:
- Cardiovascular
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Question 17
Correct
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A 42-year-old man with schizophrenia is brought to the clinic by one of his caregivers. He is currently taking clozapine and procyclidine. The caregiver reports that he seems more fatigued than usual and generally not feeling well. She also suspects that he may have gained weight. What is the most crucial examination to conduct?
Your Answer: Full blood count
Explanation:Monitoring FBC is crucial to detect agranulocytosis/neutropenia, a potentially fatal adverse reaction of clozapine. Additionally, patients taking this medication often experience weight gain.
Atypical antipsychotics are now recommended as the first-line treatment for patients with schizophrenia, as per the 2005 NICE guidelines. These medications have the advantage of significantly reducing extrapyramidal side-effects. However, they can also cause adverse effects such as weight gain, hyperprolactinaemia, and in the case of clozapine, agranulocytosis. The Medicines and Healthcare products Regulatory Agency has issued warnings about the increased risk of stroke and venous thromboembolism when antipsychotics are used in elderly patients. Examples of atypical antipsychotics include clozapine, olanzapine, risperidone, quetiapine, amisulpride, and aripiprazole.
Clozapine, one of the first atypical antipsychotics, carries a significant risk of agranulocytosis and requires full blood count monitoring during treatment. Therefore, it should only be used in patients who are resistant to other antipsychotic medication. The BNF recommends introducing clozapine if schizophrenia is not controlled despite the sequential use of two or more antipsychotic drugs, one of which should be a second-generation antipsychotic drug, each for at least 6-8 weeks. Adverse effects of clozapine include agranulocytosis, neutropaenia, reduced seizure threshold, constipation, myocarditis, and hypersalivation. Dose adjustment of clozapine may be necessary if smoking is started or stopped during treatment.
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This question is part of the following fields:
- Psychiatry
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Question 18
Correct
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A 63-year-old man presents with a complaint of neck and arm pain that has been ongoing for four months. He describes the pain as similar to 'electric shocks' and notes that it worsens when he turns his head. There is no history of trauma or any other apparent cause. The patient is in good health and not taking any medications. During the examination, it is noted that he has reduced sensation on the back of his thumb and middle finger. What is the probable underlying diagnosis?
Your Answer: C6 radiculopathy
Explanation:Understanding Dermatomes: Major Landmarks and Mnemonics
Dermatomes are areas of skin that are innervated by a single spinal nerve. Understanding dermatomes is important in diagnosing and treating various neurological conditions. The major dermatome landmarks are listed with helpful mnemonics to remember them.
Starting from the top of the body, the C2 dermatome covers the posterior half of the skull, resembling a cap. Moving down to C3, it covers the area of a high turtleneck shirt. C4 covers the area of a low-collar shirt. The C5 dermatome runs along the ventral axial line of the upper limb, while C6 covers the thumb and index finger. To remember this, make a 6 with your left hand by touching the tip of the thumb and index finger together.
Moving down to C7, it covers the middle finger and palm of the hand. C8 covers the ring and little finger. The T4 dermatome covers the area of the nipples, while T5 covers the inframammary fold. T6 covers the xiphoid process, and T10 covers the umbilicus. To remember this, think of BellybuT-TEN.
The L1 dermatome covers the inguinal ligament, which can be remembered by thinking of L for ligament, 1 for 1nguinal. L4 covers the knee caps, and to remember this, think of being down on all fours. L5 covers the big toe and dorsum of the foot (except the lateral aspect), and can be remembered by thinking of it as the largest of the five toes. Finally, the S1 dermatome covers the lateral foot and small toe, while S2 and S3 cover the genitalia.
Understanding dermatomes and their landmarks can aid in diagnosing and treating various neurological conditions. The mnemonics provided can help in remembering these important landmarks.
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This question is part of the following fields:
- Neurology
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Question 19
Incorrect
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A 25-year-old gymnast complains of experiencing pain in her lateral forearm that worsens when she straightens her wrist or fingers. Additionally, she occasionally feels a peculiar sensation in her hand similar to pins and needles. During the examination, she displays tenderness below the common extensor origin, with no pain over the lateral epicondyle itself. What is the probable reason for her forearm pain?
Your Answer: Lateral epicondylitis
Correct Answer: Radial tunnel syndrome
Explanation:Radial tunnel syndrome and lateral epicondylitis have similar presentations, but radial tunnel syndrome causes pain distal to the epicondyle and worsens with elbow extension and forearm pronation. This can make it challenging to differentiate between the two conditions. Radial tunnel syndrome is more common in athletes who frequently hyperextend their wrists or perform supination/pronation movements, such as gymnasts, racquet players, and golfers. Patients may also experience hand paraesthesia or wrist aching. Cubital tunnel syndrome, on the other hand, causes tingling and numbness in the 4th and 5th fingers, while olecranon bursitis results in swelling over the posterior elbow.
Understanding Lateral Epicondylitis
Lateral epicondylitis, commonly known as tennis elbow, is a condition that often occurs after engaging in activities that the body is not accustomed to, such as painting or playing tennis. It is most prevalent in individuals aged 45-55 years and typically affects the dominant arm. The primary symptom of this condition is pain and tenderness localized to the lateral epicondyle. The pain is often exacerbated by wrist extension against resistance with the elbow extended or supination of the forearm with the elbow extended. Episodes of lateral epicondylitis can last between 6 months and 2 years, with patients experiencing acute pain for 6-12 weeks.
To manage lateral epicondylitis, it is essential to avoid muscle overload and engage in simple analgesia. Steroid injections and physiotherapy are also viable options for managing the condition. By understanding the symptoms and management options for lateral epicondylitis, individuals can take the necessary steps to alleviate pain and discomfort associated with this condition.
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This question is part of the following fields:
- Musculoskeletal
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Question 20
Incorrect
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A 32-year-old man with a history of migraine and asthma seeks medical attention for worsening migraine symptoms. He is experiencing one debilitating migraine attack every two weeks, lasting approximately 24 hours, and only partially relieved by zolmitriptan. This has resulted in frequent work absences. His current medication regimen includes zolmitriptan, salbutamol, and Clenil. What is the most suitable medication to prescribe for reducing the frequency of his migraine attacks?
Your Answer: Amitriptyline
Correct Answer: Topiramate
Explanation:For the prophylaxis of migraines, NICE recommends either topiramate or propranolol. However, propranolol is not suitable for this patient due to his asthma. As for acute treatment, a combination of triptan and NSAID or triptan and paracetamol is recommended.
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.
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This question is part of the following fields:
- Neurology
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Question 21
Correct
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A 70-year-old man is admitted to the acute medical unit with an infective exacerbation of chronic obstructive pulmonary disease (COPD) which has failed to improve despite a course of antibiotics and steroids. He has a medical history of type 2 diabetes and hypertension and takes aspirin, simvastatin, amlodipine, and metformin. His random blood glucose on admission is 12.3mmol/l and a HbA1c test is ordered, which shows an IFCC-HbA1c of 45 mmol/mol and HbA1c of 6.3%. What is the best course of action?
Your Answer: Make no changes to diabetes medictions
Explanation:The HbA1c is a reliable indicator of good glycaemic control and should be used to determine any necessary changes to diabetes medications. It reflects average glucose levels over a period of 2-3 months, rather than a single reading. It is possible that the recent use of steroids has temporarily worsened glycaemic control in this case.
NICE updated its guidance on the management of type 2 diabetes mellitus (T2DM) in 2022, reflecting advances in drug therapy and improved evidence regarding newer therapies such as SGLT-2 inhibitors. The first-line drug of choice remains metformin, which should be titrated up slowly to minimize gastrointestinal upset. HbA1c targets should be agreed upon with patients and checked every 3-6 months until stable, with consideration for relaxing targets on a case-by-case basis. Dietary advice includes encouraging high fiber, low glycemic index sources of carbohydrates and controlling intake of foods containing saturated fats and trans fatty acids. Blood pressure targets are the same as for patients without type 2 diabetes, and antiplatelets should not be offered unless a patient has existing cardiovascular disease. Only patients with a 10-year cardiovascular risk > 10% should be offered a statin, with atorvastatin 20mg as the first-line choice.
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This question is part of the following fields:
- Endocrinology/Metabolic Disease
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Question 22
Correct
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A 38-year-old teacher presents with ongoing fatigue. During a routine blood test, abnormal liver function tests are detected, prompting a hepatitis screen. The results are as follows:
Negative for Anti-HAV IgG
Negative for HBsAg
Positive for Anti-HBs
Negative for Anti-HBc
Positive for Anti-HCV
What is the most likely interpretation of these results?Your Answer: Hepatitis C infection with previous hepatitis B vaccination
Explanation:To determine if a patient still has the hepatitis C virus, a HCV PCR test is necessary as only a small percentage of patients naturally clear the infection. Unfortunately, there is currently no vaccine available for hepatitis C.
When interpreting hepatitis B serology, the presence of surface antigen (HBsAg) typically indicates acute disease and triggers the production of anti-HBs. If HBsAg is present for more than six months, it suggests chronic disease and is infectious. Anti-HBs indicates immunity from either exposure or vaccination, while anti-HBc suggests previous or current infection. The appearance of IgM anti-HBc during acute or recent hepatitis B infection lasts for about six months. HbeAg is a marker of infectivity as it results from the breakdown of core antigen from infected liver cells.
Understanding Hepatitis C: Transmission, Complications, and Management
Hepatitis C is a viral infection that is expected to become a significant public health concern in the UK in the coming years. It is estimated that around 200,000 people in the country are chronically infected with the virus, with intravenous drug users and those who received blood transfusions prior to 1991 being at higher risk. The virus is an RNA flavivirus with an incubation period of 6-9 weeks.
Transmission of the virus can occur through needle stick injuries, vertical transmission from mother to child (especially if coexistent with HIV), and sexual intercourse (although the risk is low). There is currently no vaccine for hepatitis C. Symptoms of acute infection include a transient rise in serum aminotransferases, jaundice, fatigue, and arthralgia.
Around 15-45% of patients will clear the virus after an acute infection, while the majority (55-85%) will develop chronic hepatitis C. This can lead to complications such as rheumatological problems, cirrhosis, hepatocellular cancer, and cryoglobulinemia. Treatment for chronic infection depends on the viral genotype and aims for sustained virological response (SVR), defined as undetectable serum HCV RNA six months after the end of therapy. Interferon-based treatments are no longer recommended, with protease inhibitors such as daclatasvir and sofosbuvir or sofosbuvir and simeprevir being used instead. However, these treatments can have side effects such as haemolytic anaemia, cough, flu-like symptoms, depression, and fatigue.
In conclusion, understanding the transmission, complications, and management of hepatitis C is crucial in addressing this growing public health concern.
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This question is part of the following fields:
- Infectious Diseases
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Question 23
Correct
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A 75-year-old woman who has undergone a total hip replacement (THR) comes for evaluation because of discomfort on the side of her prosthesis. What is the primary cause for a revision surgery in a patient who has had a THR?
Your Answer: Aseptic loosening of the implant
Explanation:The primary cause for the revision of total hip replacements is aseptic loosening, followed by pain and dislocation.
Osteoarthritis (OA) of the hip is a prevalent condition, with the knee being the only joint more commonly affected. It is particularly prevalent in older individuals, and women are twice as likely to develop it. Obesity and developmental dysplasia of the hip are also risk factors. The condition is characterized by chronic groin pain that is exacerbated by exercise and relieved by rest. However, if the pain is present at rest, at night, or in the morning for more than two hours, it may indicate an alternative cause. The Oxford Hip Score is a widely used tool to assess the severity of the condition.
If the symptoms are typical, a clinical diagnosis can be made. Otherwise, plain x-rays are the first-line investigation. Management of OA of the hip includes oral analgesia and intra-articular injections, which provide short-term relief. However, total hip replacement is the definitive treatment.
Total hip replacement is a common operation in the developed world, but it is not without risks. Perioperative complications include venous thromboembolism, intraoperative fracture, nerve injury, surgical site infection, and leg length discrepancy. Postoperatively, posterior dislocation may occur during extremes of hip flexion, presenting with a clunk, pain, and inability to weight bear. Aseptic loosening is the most common reason for revision, and prosthetic joint infection is also a potential complication.
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This question is part of the following fields:
- Musculoskeletal
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Question 24
Correct
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A young man with a 5-year history of alcoholism successfully completes an inpatient drug rehabilitation programme. What advice will you give him to maintain sobriety?
Your Answer: Join a local Alcoholics Anonymous group
Explanation:Strategies for Preventing Alcohol Relapse
For individuals with alcohol-use disorders, preventing relapse is crucial for maintaining sobriety. Here are some strategies that can help:
1. Join a local Alcoholics Anonymous group or other self-help groups that require total abstinence. Active participation in these groups can offer the best chance of preventing relapses.
2. Limit consumption to socially appropriate amounts. Even small amounts of alcohol can trigger a relapse, so individuals who have completed a detoxification program are encouraged not to drink at all.
3. Take disulfiram as prescribed. This medication can cause unpleasant symptoms when alcohol is consumed, making it a deterrent for those who struggle with alcohol use. However, it should only be taken in the context of an appropriate alcohol detoxification program.
4. Take naltrexone as prescribed. This medication can help reduce cravings for alcohol, but it should not be taken as a deterrent before attending a party.
5. Plan a definite number of drinks before attending a party. However, individuals who have completed a detoxification program are still encouraged not to drink at all to prevent relapse.
By implementing these strategies, individuals with alcohol-use disorders can increase their chances of maintaining sobriety and preventing relapse.
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This question is part of the following fields:
- Psychiatry
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Question 25
Incorrect
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A 32-year-old woman comes to the clinic reporting several strange experiences. She explains feeling as though her environment is not real, almost like a dream. Additionally, she has been informed that she begins to smack her lips, although she has no memory of doing so. What is the probable diagnosis?
Your Answer: Absence seizure
Correct Answer: Focal impaired awareness seizure
Explanation:Focal aware seizures do not affect consciousness or awareness, and may involve automatic, repetitive actions such as lip smacking.
Epilepsy is classified based on three key features: where seizures begin in the brain, level of awareness during a seizure, and other features of seizures. Focal seizures, previously known as partial seizures, start in a specific area on one side of the brain. The level of awareness can vary in focal seizures, and they can be further classified as focal aware, focal impaired awareness, or awareness unknown. Focal seizures can also be motor, non-motor, or have other features such as aura. Generalized seizures involve networks on both sides of the brain at the onset, and consciousness is lost immediately. They can be further subdivided into motor and non-motor types. Unknown onset is used when the origin of the seizure is unknown. Focal to bilateral seizures start on one side of the brain in a specific area before spreading to both lobes and were previously known as secondary generalized seizures.
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This question is part of the following fields:
- Neurology
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Question 26
Correct
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A 45-year-old woman reports leakage of urine, which is happening more often. She is unable to control her urine when she feels the urge to go and has had a few instances where she couldn't make it to the bathroom in time. There is no pain during urination and her urine dipstick test is negative. Which of the following is the most probable diagnosis?
Your Answer: Urge incontinence
Explanation:Urinary incontinence is a common problem that affects more women than men and increases with age. There are different types of urinary incontinence, each with its own set of symptoms. Functional incontinence occurs when a person is unable to hold urine due to reasons other than lower urinary tract dysfunction, such as delirium or impaired mobility. Mixed incontinence is a combination of stress and urge incontinence, while overflow incontinence occurs when the bladder is overdistended and urine overflows despite the absence of detrusor contraction. Stress incontinence is characterized by urine loss during periods of increased intra-abdominal pressure, while urge incontinence is associated with a sudden and intense desire to void that cannot be prevented. Symptoms of urge incontinence include urinary frequency and nocturia. Treatment is directed at the underlying cause of the incontinence.
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This question is part of the following fields:
- Reproductive Medicine
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Question 27
Correct
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A 12-year-old girl comes to her GP with a complaint of amenorrhoea. Her parents inform the doctor that she requires extra support at school due to learning difficulties. During the examination, the doctor observes sparse breast development, broad shoulders, a wide neck, and elevated blood pressure. What is the most probable chromosomal abnormality in this patient?
Your Answer: 45 XO
Explanation:Common Chromosomal Abnormalities and Their Associated Conditions
45 XO is a chromosomal abnormality associated with Turner syndrome, which is characterized by sparse breast development, broad shoulders, high blood pressure, and a wide neck.
46 XY is the normal karyotype for men, but genetic abnormalities involving other chromosomes can still occur.
46 XX is the normal karyotype for women, but genetic abnormalities involving other chromosomes can still occur.
47 XXX is the chromosomal abnormality associated with triple X syndrome, which can be asymptomatic or result in learning difficulties, tall stature, or microcephaly.
47 XXY is the chromosomal abnormality associated with Klinefelter syndrome, which is characterized by tall stature, gynaecomastia, and infertility.
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This question is part of the following fields:
- Genetics
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Question 28
Correct
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A 27-year-old woman presents with new-onset diabetes. She has no past drug or treatment history. Her fasting blood glucose is 7.3 mmol/l. Other significant medical history included occasional diarrhoea in the last four months, for which she took repeated courses of tinidazole. She also had an episode of severe leg pain three months ago, for which she takes warfarin. She is presently very depressed, as her sister has had renal calculus surgery, which has not gone well; she is in the Intensive Care Unit (ICU) with sepsis.
What is the most appropriate next test?Your Answer: Genetic study
Explanation:Diagnostic Tests for Various Medical Conditions
Multiple Endocrine Neoplasia (MEN) 1 Syndrome: A genetic study to detect MEN 1 gene mutation on chromosome 11 is the best diagnostic test for patients with new-onset diabetes, diarrhea, and a past episode of deep vein thrombosis (DVT) who have a family history of renal calculi at a young age. This autosomal dominant disease is characterized by endocrine hyperfunction in various glands, with the parathyroid gland being the most common gland affected. Enteropancreatic tumors are the second most common, with gastrinoma and insulinoma being the two most common tumors. Glucagonoma can also occur, but rarely. Plasma glucagon and ghrelin levels are elevated in these cases.
Giardiasis: A blood test for Giardia antigen is recommended for patients with watery, sometimes foul-smelling, diarrhea that may alternate with soft, greasy stools, fatigue or malaise, abdominal cramps and bloating, gas or flatulence, nausea, and weight loss. Tinidazole should have eliminated Giardia, but if symptoms persist, a blood test for Giardia antigen can confirm the diagnosis.
Diabetes: A C-peptide assay can help distinguish type I diabetes from type II diabetes or maturity-onset diabetes of the young (MODY) by measuring how much of their own natural insulin a person is producing. This is useful if a patient receives insulin injections. The C-peptide assay will help clarify the cause of diabetes, but it will not help in detecting the underlying disease.
Colonoscopy: Colonoscopy is not needed for the occasional diarrhea at present.
Deep Vein Thrombosis (DVT): Protein C measurement will not help in the diagnosis of DVT. DVT occurs as a rare complication of glucagonoma, and treatment for glucagonoma includes octreotide, surgery, and streptozotocin (rarely).
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This question is part of the following fields:
- Endocrinology/Metabolic Disease
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Question 29
Correct
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A 30-year-old man presents to the emergency department following a motor vehicle collision where he was the driver. A lorry in front lost control and caused significant damage to his car, resulting in the dashboard and footwell being pushed forward. The patient is currently stable but complains of severe pain in his right leg. Upon examination, his right leg is internally rotated, slightly flexed, adducted, and shortened compared to the left. What is the likely diagnosis?
Your Answer: Posterior hip dislocation
Explanation:When a person has a posterior hip dislocation, their leg will appear shortened and internally rotated. This type of injury often occurs during car accidents, especially when the driver slams on the brakes to avoid a collision. The impact from the front of the car is then transferred through the leg to the hip joint, causing the femoral head to move behind the acetabulum. Pelvic fractures, on the other hand, typically cause pain when walking or touching the area, as well as instability, nerve or blood vessel damage in the leg, and signs of injury to pelvic organs such as bleeding from the rectum or blood in the urine. Anterior hip dislocations are less common than posterior ones, but they can cause the leg to appear abducted and externally rotated, with a noticeable bulge in the femoral head. These types of dislocations are often associated with hip prostheses. Finally, femoral shaft fractures can cause swelling, deformity, and shortening of the leg. Because such fractures require a significant amount of force to occur, there is usually also damage to the surrounding soft tissues and bleeding.
Understanding Hip Dislocation: Types, Management, and Complications
Hip dislocation is a painful condition that occurs when the ball and socket joint of the hip are separated. This is usually caused by direct trauma, such as road traffic accidents or falls from a significant height. The force required to cause hip dislocation can also result in other fractures and life-threatening injuries. Therefore, prompt diagnosis and appropriate management are crucial to reduce morbidity.
There are three types of hip dislocation: posterior, anterior, and central. Posterior dislocation is the most common, accounting for 90% of cases. It causes the affected leg to be shortened, adducted, and internally rotated. On the other hand, anterior dislocation results in abduction and external rotation of the affected leg, with no leg shortening. Central dislocation is rare and occurs when the femoral head is displaced in all directions.
The management of hip dislocation follows the ABCDE approach, which includes ensuring airway, breathing, circulation, disability, and exposure. Analgesia is also given to manage the pain. A reduction under general anaesthetic is performed within four hours to reduce the risk of avascular necrosis. Long-term management involves physiotherapy to strengthen the surrounding muscles.
Complications of hip dislocation include nerve injury, avascular necrosis, osteoarthritis, and recurrent dislocation due to damage to supporting ligaments. The prognosis is best when the hip is reduced less than 12 hours post-injury and when there is less damage to the joint. It takes about two to three months for the hip to heal after a traumatic dislocation.
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This question is part of the following fields:
- Musculoskeletal
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Question 30
Incorrect
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A 35-year-old woman presents with epigastric pain which radiates to the back. She feels nauseous and has been vomiting since arriving at the Emergency Department. On questioning, the woman tells you that she takes no regular medication. She was last in hospital three years ago after she slipped and fell in the shower. She was not admitted. She travelled to Thailand to visit relatives two months ago.
On examination, the woman’s abdomen is tender in the epigastrium. She is jaundiced. She is also tachycardia and pyrexia.
Investigations reveal the following:
Investigation Result Normal
Alkaline phosphatase (ALP) 280 IU 30–130 IU
Alanine aminotransferase (ALT) 50 IU 5–30 IU
Bilirubin 40 µmol/l 2–17 µmol/l
Amylase 900 u/l 30-100 u/l
What is the best initial treatment for this woman?Your Answer: IV fluids and chloroquinine
Correct Answer: Admission, intravenous (IV) fluids, analgesia, and place a nasogastric tube
Explanation:Initial Treatment for Pancreatitis: What to Do and What Not to Do
Pancreatitis is a serious condition that requires prompt and appropriate treatment. The initial management of pancreatitis involves admission, intravenous (IV) fluids, analgesia, and placing a nasogastric tube. However, there are certain things that should not be done in the initial treatment of pancreatitis.
One of the things that should not be done is administering antibiotics unless the pancreatitis is complicated by pancreatic necrosis, an abscess, or a pseudocyst > 6 cm for < 6 weeks. Another thing that should not be done is performing surgical intervention unless the pancreatitis is complicated by the aforementioned conditions. It is important to note that acute pancreatitis can cause a fever without the presence of an abscess or pseudocyst. Therefore, it is crucial to monitor the patient’s condition closely and perform further investigations if necessary. In addition, it is important to consider the patient’s medical history. If the patient has a history of excess alcohol consumption, this may be the cause of pancreatitis. In such cases, appropriate initial treatment should be given without delay. Overall, the initial treatment of pancreatitis should focus on stabilizing the patient’s condition and addressing the underlying cause of the condition. With proper management, the patient can recover from pancreatitis and avoid complications.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 31
Incorrect
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A 59-year-old woman comes in for a routine check-up with her primary care physician. She has a history of type 2 diabetes mellitus and is currently taking metformin and sitagliptin. During her last visit, her blood pressure was measured at 161/88 mmHg and she was advised to undergo 7 days of ambulatory blood pressure monitoring.
During this visit, her average ambulatory blood pressure is recorded as 158/74 mmHg. All other observations are stable and her cardiorespiratory examination is unremarkable. Her blood sugar level is 6.2 mmol/L.
What medication would be recommended to manage this patient's blood pressure?Your Answer: Amlodipine
Correct Answer: Lisinopril
Explanation:Regardless of age, ACE inhibitors/A2RBs are the first-line treatment for hypertension in diabetics.
Blood Pressure Management in Diabetes Mellitus
Patients with diabetes mellitus have traditionally been managed with lower blood pressure targets to reduce their overall cardiovascular risk. However, a 2013 Cochrane review found that there was little difference in outcomes between patients who had tight blood pressure control (targets < 130/85 mmHg) and those with more relaxed control (< 140-160/90-100 mmHg), except for a slightly reduced rate of stroke in the former group. As a result, NICE recommends a blood pressure target of < 140/90 mmHg for type 2 diabetics, the same as for patients without diabetes. For patients with type 1 diabetes, NICE recommends a blood pressure target of 135/85 mmHg unless they have albuminuria or two or more features of metabolic syndrome, in which case the target should be 130/80 mmHg. ACE inhibitors or angiotensin-II receptor antagonists (A2RBs) are the first-line antihypertensive regardless of age, as they have a renoprotective effect in diabetes. A2RBs are preferred for black African or African-Caribbean diabetic patients. Further management then follows that of non-diabetic patients. It is important to note that autonomic neuropathy may result in more postural symptoms in patients taking antihypertensive therapy. Therefore, the routine use of beta-blockers in uncomplicated hypertension should be avoided, particularly when given in combination with thiazides, as they may cause insulin resistance, impair insulin secretion, and alter the autonomic response to hypoglycemia.
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This question is part of the following fields:
- Cardiovascular
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Question 32
Correct
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A 35 year old woman who is 30 weeks pregnant presents with malaise, headaches and vomiting. She is admitted to the obstetrics ward after a routine blood pressure measurement was 190/95 mmHg. Examination reveals right upper quadrant abdominal pain and brisk tendon reflexes. The following blood tests are shown:
Hb 85 g/l
WBC 6 * 109/l
Platelets 89 * 109/l
Bilirubin 2.8 µmol/l
ALP 215 u/l
ALT 260 u/l
γGT 72 u/l
LDH 846 u/I
A peripheral blood film is also taken which shows polychromasia and schistocytes. What is the most likely diagnosis?Your Answer: HELLP syndrome
Explanation:The symptoms of HELLP syndrome, a severe form of pre-eclampsia, include haemolysis (H), elevated liver enzymes (EL), and low platelets (LP). A patient with this condition may experience malaise, nausea, vomiting, and headache, as well as hypertension with proteinuria and epigastric and/or upper abdominal pain. The patient in this case meets the requirements for a diagnosis of HELLP syndrome.
Liver Complications During Pregnancy
During pregnancy, there are several liver complications that may arise. One of the most common is intrahepatic cholestasis of pregnancy, which occurs in about 1% of pregnancies and is typically seen in the third trimester. Symptoms include intense itching, especially in the palms and soles, as well as elevated bilirubin levels. Treatment involves the use of ursodeoxycholic acid for relief and weekly liver function tests. Women with this condition are usually induced at 37 weeks to prevent stillbirth, although maternal morbidity is not typically increased.
Another rare complication is acute fatty liver of pregnancy, which may occur in the third trimester or immediately after delivery. Symptoms include abdominal pain, nausea and vomiting, headache, jaundice, and hypoglycemia. Severe cases may result in pre-eclampsia. ALT levels are typically elevated, and support care is the primary management until delivery can be performed once the patient is stabilized.
Finally, conditions such as Gilbert’s and Dubin-Johnson syndrome may be exacerbated during pregnancy. Additionally, HELLP syndrome, which stands for haemolysis, elevated liver enzymes, and low platelets, is a serious complication that can occur in the third trimester and requires immediate medical attention. Overall, it is important for pregnant women to be aware of these potential liver complications and to seek medical attention if any symptoms arise.
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This question is part of the following fields:
- Reproductive Medicine
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Question 33
Correct
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A 67-year-old man presents to you with progressive numbness in his right hand and entire right side, indicating a possible stroke. You promptly arrange for an ambulance and he returns 6 weeks later to express his gratitude and discuss medication. If there are no contraindications, what antiplatelet regimen is recommended after an acute ischemic stroke?
Your Answer: Aspirin 300 mg daily for 2 weeks then clopidogrel 75 mg daily long-term
Explanation:When a patient shows symptoms of acute stroke, it is crucial to immediately send them to the nearest stroke center. Treatment should not be administered until a diagnosis of ischemic stroke is confirmed. Once confirmed, the patient should be prescribed aspirin 300 mg daily for two weeks, followed by long-term use of clopidogrel 75 mg daily. Additionally, if the patient is not already taking a statin, it should be offered as a treatment option.
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.
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This question is part of the following fields:
- Neurology
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Question 34
Correct
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Which of the following is most commonly linked to elevated levels of CA 19-9?
Your Answer: Pancreatic cancer
Explanation:CA 19-9 and Pancreatic Cancer
Understanding Tumour Markers
Tumour markers are substances that can be found in the blood, urine, or tissues of people with cancer. They are often used to help diagnose and monitor cancer, as well as to determine the effectiveness of treatment. Tumour markers can be divided into different categories, including monoclonal antibodies against carbohydrate or glycoprotein tumour antigens, tumour antigens, enzymes, and hormones.
Monoclonal antibodies are used to target specific tumour antigens, which are proteins or other molecules that are found on the surface of cancer cells. Some common tumour markers include CA 125 for ovarian cancer, CA 19-9 for pancreatic cancer, and CA 15-3 for breast cancer. However, it is important to note that tumour markers usually have a low specificity, meaning that they can also be found in people without cancer.
Tumour antigens are proteins that are produced by cancer cells and can be detected in the blood or tissues of people with cancer. Some examples of tumour antigens include prostate specific antigen (PSA) for prostatic carcinoma, alpha-feto protein (AFP) for hepatocellular carcinoma and teratoma, and carcinoembryonic antigen (CEA) for colorectal cancer.
Enzymes and hormones can also be used as tumour markers. For example, alkaline phosphatase and neurone specific enolase are enzymes that can be elevated in people with cancer, while hormones such as calcitonin and ADH can be used to detect certain types of cancer.
In summary, tumour markers are an important tool in the diagnosis and monitoring of cancer. However, they should be used in conjunction with other diagnostic tests and imaging studies, as they are not always specific to cancer and can also be elevated in people without cancer.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 35
Incorrect
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At her routine check-up, a 75 year old woman is discovered to have a serum sodium level of 128 mmol/L. Despite feeling fine and having no symptoms, which of the following medications could be responsible for her hyponatraemia?
Your Answer: Irbesartan
Correct Answer: Sertraline
Explanation:Hyponatraemia, a condition where there is low sodium levels in the blood, can be caused by various drugs that either increase the production or enhance the effects of antidiuretic hormone (ADH). Among these drugs, diuretics (especially thiazides), SSRIs, antipsychotics like haloperidol, nonsteroidal anti-inflammatories, and carbamazepine are the most commonly implicated. SSRIs, in particular, can trigger the release of ADH, leading to hyponatraemia within the first few weeks of treatment. However, this condition usually resolves within two weeks of discontinuing the drug. The risk of developing hyponatraemia is higher in older patients and those taking diuretics concomitantly with SSRIs.
Understanding the Side-Effects and Interactions of SSRIs
SSRIs, or selective serotonin reuptake inhibitors, are commonly prescribed antidepressants that can have various side-effects and interactions with other medications. The most common side-effect of SSRIs is gastrointestinal symptoms, and patients taking these medications are at an increased risk of gastrointestinal bleeding. To mitigate this risk, a proton pump inhibitor should be prescribed if the patient is also taking a NSAID. Hyponatraemia, or low sodium levels, can also occur with SSRIs, and patients should be vigilant for increased anxiety and agitation after starting treatment.
Fluoxetine and paroxetine have a higher propensity for drug interactions, and citalopram has been associated with dose-dependent QT interval prolongation. The Medicines and Healthcare products Regulatory Agency (MHRA) has advised that citalopram and escitalopram should not be used in patients with congenital long QT syndrome, known pre-existing QT interval prolongation, or in combination with other medicines that prolong the QT interval. The maximum daily dose of citalopram has been reduced for certain patient populations.
SSRIs can also interact with other medications, such as NSAIDs, warfarin/heparin, aspirin, and triptans. It is important to review patients after starting antidepressant therapy and to gradually reduce the dose when stopping treatment to avoid discontinuation symptoms. These symptoms can include mood changes, restlessness, difficulty sleeping, unsteadiness, sweating, gastrointestinal symptoms, and paraesthesia.
In summary, understanding the potential side-effects and interactions of SSRIs is crucial for safe and effective treatment of depression and other mental health conditions. Patients should be closely monitored and counseled on the risks and benefits of these medications.
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This question is part of the following fields:
- Psychiatry
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Question 36
Correct
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A 42-year-old woman is admitted to the gastroenterology ward with persistent bloody diarrhoea, abdominal pain and fever. She has a history of Crohn's disease and is suspected to be experiencing an acute flare. Methotrexate is prescribed as part of her treatment. What potential side-effect should be monitored for?
Your Answer: Pneumonitis
Explanation:Methotrexate has the potential to cause pneumonitis, which is characterized by symptoms such as cough, fever, and difficulty breathing. Failure to promptly identify and treat pneumonitis can result in permanent lung damage. Therefore, the British National Formulary advises patients to seek medical attention if they experience any of these symptoms, and physicians should monitor for signs of pneumonitis during each visit and discontinue the medication if it is suspected. It should be noted that acute respiratory distress syndrome is not a known side effect of methotrexate.
Methotrexate: An Antimetabolite with Potentially Life-Threatening Side Effects
Methotrexate is an antimetabolite drug that inhibits the enzyme dihydrofolate reductase, which is essential for the synthesis of purines and pyrimidines. It is commonly used to treat inflammatory arthritis, psoriasis, and some types of leukemia. However, it is considered an important drug due to its potential for life-threatening side effects. Careful prescribing and close monitoring are essential to ensure patient safety.
The adverse effects of methotrexate include mucositis, myelosuppression, pneumonitis, pulmonary fibrosis, and liver fibrosis. The most common pulmonary manifestation is pneumonitis, which typically develops within a year of starting treatment and presents with non-productive cough, dyspnea, malaise, and fever. Women should avoid pregnancy for at least 6 months after treatment has stopped, and men using methotrexate need to use effective contraception for at least 6 months after treatment.
When prescribing methotrexate, it is important to follow guidelines and monitor patients regularly. Methotrexate is taken weekly, and FBC, U&E, and LFTs need to be regularly monitored. The starting dose is 7.5 mg weekly, and folic acid 5mg once weekly should be co-prescribed, taken more than 24 hours after the methotrexate dose. Only one strength of methotrexate tablet should be prescribed, usually 2.5 mg. It is also important to avoid prescribing trimethoprim or co-trimoxazole concurrently, as it increases the risk of marrow aplasia, and high-dose aspirin increases the risk of methotrexate toxicity.
In case of methotrexate toxicity, the treatment of choice is folinic acid. Methotrexate is a drug with a high potential for patient harm, and it is crucial to be familiar with guidelines relating to its use to ensure patient safety.
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This question is part of the following fields:
- Musculoskeletal
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Question 37
Incorrect
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A 65-year-old woman is discharged following an uncomplicated renal transplant for end-stage renal failure from hypertension. She received a kidney with 4 out of 6 mismatched human leukocyte antigen (HLA) and is taking the appropriate medications. Thirty days postoperatively, she developed watery loose stools, followed by a skin rash that is itchy, painful and red. On examination, she has a red-violet rash affecting her hands and feet.
Investigations reveal the following:
Investigation Result Normal value
Haemoglobin (Hb) 131 g/l 115–155 g/l
White cell count (WCC) 5.4 × 109/l 4.0–11.0 × 109/l
Platelets (PLT) 280 ×109/l 150–400 × 109/l
Sodium (Na+) 139 mmol/l 135–145 mmol/l
Potassium (K+) 4.0 mmol/l 3.5–5.0 mmol/l
Urea 15.1 mmol/l 2.5–6.5 mmol/l
Creatinine (Cr) 170 μmol/l 50–120 µmol/l
Alanine aminotransferase (ALT) 54 IU/l 7–55 IU/l
Alkaline phosphatase (ALP) 165 IU/l 30–130 IU/l
Bilirubin 62 µmol/l 2–17 µmol/l
Which of the following is the most likely diagnosis?Your Answer: Azathioprine toxicity
Correct Answer: Graft-versus-host disease
Explanation:Differential Diagnosis for a Patient with Watery Diarrhea and Rash after Renal Transplantation
Graft-versus-host disease (GVHD) is a potential complication of solid organ transplantation, with a mortality rate of 75%. It typically presents with watery diarrhea, a painful red-violet rash, and raised bilirubin. Diagnosis is obtained through biopsy, and treatment involves immunosuppressants such as tacrolimus and methylprednisolone.
Acute viral hepatitis is another possible cause of diarrhea and jaundice, but the patient’s normal ALT and atypical symptoms make it unlikely. Azathioprine toxicity can cause bone marrow suppression, while Sjögren syndrome causes dry eyes and xerostomia, neither of which fit this patient’s presentation.
Viral gastroenteritis is a consideration, but the presence of a painful/itchy rash and raised bilirubin suggests a need for further investigation. Given the recent renal transplant, a high degree of suspicion for GVHD and other potential complications is warranted.
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This question is part of the following fields:
- Renal Medicine/Urology
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Question 38
Correct
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A 32-year-old woman presents with intense itching at 36 weeks of pregnancy. The itching began 3 weeks ago and has been causing her sleepless nights. She experiences itching all over her body, particularly in her hands and feet, but has not observed any rashes. Her mother had comparable symptoms during her second pregnancy. Apart from this, she is in good health. What is the best course of action?
Your Answer: Check liver function tests
Explanation:The diagnosis that needs to be ruled out first is obstetric cholestasis, as it can heighten the chances of premature birth and fetal death. The condition is identified by abnormal liver function tests and itching without any skin rash. Unlike uric acid, it is the bile acids that are elevated in obstetric cholestasis.
Liver Complications During Pregnancy
During pregnancy, there are several liver complications that may arise. One of the most common is intrahepatic cholestasis of pregnancy, which occurs in about 1% of pregnancies and is typically seen in the third trimester. Symptoms include intense itching, especially in the palms and soles, as well as elevated bilirubin levels. Treatment involves the use of ursodeoxycholic acid for relief and weekly liver function tests. Women with this condition are usually induced at 37 weeks to prevent stillbirth, although maternal morbidity is not typically increased.
Another rare complication is acute fatty liver of pregnancy, which may occur in the third trimester or immediately after delivery. Symptoms include abdominal pain, nausea and vomiting, headache, jaundice, and hypoglycemia. Severe cases may result in pre-eclampsia. ALT levels are typically elevated, and support care is the primary management until delivery can be performed once the patient is stabilized.
Finally, conditions such as Gilbert’s and Dubin-Johnson syndrome may be exacerbated during pregnancy. Additionally, HELLP syndrome, which stands for haemolysis, elevated liver enzymes, and low platelets, is a serious complication that can occur in the third trimester and requires immediate medical attention. Overall, it is important for pregnant women to be aware of these potential liver complications and to seek medical attention if any symptoms arise.
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This question is part of the following fields:
- Reproductive Medicine
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Question 39
Incorrect
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A 67-year-old man arrives at the emergency department with a history of severe chest pain, scoring 9 out of 10, that began an hour ago. He is a smoker and is currently taking amlodipine for his hypertension. Following an ECG and troponin testing, he is diagnosed with NSTEMI. Using the GRACE score, his predicted 6-month mortality is 2%, and he is not at high risk of bleeding. However, the nearest primary percutaneous intervention unit is over an hour away. What is the appropriate management plan for this patient?
Your Answer: Thrombolysis
Correct Answer: Aspirin, ticagrelor and fondaparinux
Explanation:Managing Acute Coronary Syndrome: A Summary of NICE Guidelines
Acute coronary syndrome (ACS) is a common and serious medical condition that requires prompt management. The management of ACS has evolved over the years, with the development of new drugs and procedures such as percutaneous coronary intervention (PCI). The National Institute for Health and Care Excellence (NICE) has updated its guidelines on the management of ACS in 2020.
ACS can be classified into three subtypes: ST-elevation myocardial infarction (STEMI), non ST-elevation myocardial infarction (NSTEMI), and unstable angina. The management of ACS depends on the subtype. However, there are common initial drug therapies for all patients with ACS, such as aspirin and nitrates. Oxygen should only be given if the patient has oxygen saturations below 94%, and morphine should only be given for severe pain.
For patients with STEMI, the first step is to assess eligibility for coronary reperfusion therapy, which can be either PCI or fibrinolysis. Patients with NSTEMI/unstable angina require a risk assessment using the Global Registry of Acute Coronary Events (GRACE) tool to determine whether they need coronary angiography (with follow-on PCI if necessary) or conservative management.
This summary provides an overview of the NICE guidelines for managing ACS. The guidelines are complex and depend on individual patient factors, so healthcare professionals should review the full guidelines for further details. Proper management of ACS can improve patient outcomes and reduce the risk of complications.
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This question is part of the following fields:
- Cardiovascular
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Question 40
Incorrect
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A 54-year-old man with a history of alcoholic liver disease and cirrhosis is scheduled for an oesophago-gastro-duodenoscopy (OGD) to screen for oesophageal varices. The OGD reveals several high-risk varices, and medical prophylaxis is advised. What medication would be the best choice?
Your Answer: Terlipressin
Correct Answer: Propranolol
Explanation:Propranolol, a non-selective beta-blocker, is utilized for the prevention of oesophageal bleeding. Bisoprolol and metoprolol, both cardio-selective beta-blockers, are not as effective as propranolol for the extended management of varices. Terlipressin, a vasopressin analogue, is recommended for the immediate treatment of variceal bleeding.
Variceal haemorrhage is a serious condition that requires prompt management. The initial treatment involves resuscitation of the patient before endoscopy. Correcting clotting with FFP and vitamin K is important, as is the use of vasoactive agents such as terlipressin or octreotide. Prophylactic IV antibiotics are also recommended to reduce mortality in patients with liver cirrhosis. Endoscopic variceal band ligation is the preferred method of treatment, and the use of a Sengstaken-Blakemore tube or Transjugular Intrahepatic Portosystemic Shunt (TIPSS) may be necessary if bleeding cannot be controlled. Propranolol and EVL are effective in preventing rebleeding and mortality, and are recommended by NICE guidelines. Proton pump inhibitor cover is given to prevent EVL-induced ulceration.
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This question is part of the following fields:
- Gastroenterology/Nutrition
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Question 41
Correct
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A 25-year-old comes in for a check-up. Over the last 3 months, he has been experiencing frequent headaches. These headaches are now happening almost every day and can be quite intense. What characteristic in this patient should trigger an investigation for a secondary cause of headaches?
Your Answer: Headache triggered by coughing
Explanation:When dealing with an older patient, it is important to rule out glaucoma if they are experiencing severe unilateral eye pain. However, for a 23-year-old patient, this is not a top concern. Migraine and cluster headaches are common causes of unilateral eye pain, as well as sinusitis which can cause pain behind the eye.
Red Flags for Headaches
Headaches are a common complaint in clinical practice, but some symptoms may indicate a more serious underlying condition. The National Institute for Health and Care Excellence (NICE) has identified several red flags that should prompt further investigation. These include compromised immunity, a history of malignancy, sudden-onset headache, new-onset neurological deficit, impaired level of consciousness, recent head trauma, and symptoms suggestive of giant cell arteritis or acute narrow-angle glaucoma. Other red flags include vomiting without an obvious cause, worsening headache with fever, new-onset cognitive dysfunction, change in personality, orthostatic headache, and a substantial change in the characteristics of the headache. If any of these symptoms are present, it is important to seek medical attention promptly. By identifying these red flags, healthcare providers can ensure that patients receive appropriate care and treatment for their headaches.
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This question is part of the following fields:
- Neurology
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Question 42
Incorrect
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An 82-year-old woman presents to the Emergency Department after experiencing a blackout while shopping. Upon examination, she appears alert and oriented, and her vital signs are stable. Her CBG level is 5.8 mmol/l, and her pulse is irregular with a low volume at 89 beats per minute. Her blood pressure is 145/120 mmHg while lying and standing. There is no raised jugular venous pressure, and her apex beat is forceful but undisplaced. Heart sounds reveal a soft S2 and a soft ejection systolic murmur loudest in the right second intercostal space, with a possible fourth heart sound heard. Chest examination reveals occasional bibasal crackles that clear with coughing, and there is no peripheral edema. Based on these findings, what is the most likely cause of her collapse?
Your Answer: Aortic regurgitation
Correct Answer: Aortic stenosis
Explanation:Understanding Aortic Stenosis and Differential Diagnosis
Aortic stenosis is a condition that presents with symptoms of left ventricular failure, angina, and potential collapse or blackout if the stenosis is critical. A low-volume pulse, narrow pulse pressure, slow-rising carotid pulse, undisplaced, sustained/forceful apex beat, soft or absent A2, ejection systolic murmur + fourth heart sound, and pulmonary edema are significant signs of aortic stenosis.
It is important to differentiate aortic stenosis from other conditions such as mitral regurgitation, aortic regurgitation, mitral stenosis, and mixed mitral and aortic valve disease. Mitral regurgitation causes a pan-systolic murmur radiating to the axilla, while aortic regurgitation causes an early diastolic murmur and a collapsing pulse. Mitral stenosis causes a mid-diastolic murmur with a characteristic opening snap. There is no definitive evidence of mitral valve disease in this clinical scenario.
Understanding the signs and symptoms of aortic stenosis and differentiating it from other conditions is crucial for proper diagnosis and treatment.
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This question is part of the following fields:
- Cardiovascular
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Question 43
Correct
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A 30-year-old woman presents with a swollen first finger and wrist pain associated with a 5 month history of generalised fatigue. She has no other symptoms including no skin changes, and no previous medical history. Her mother suffers from psoriasis. She had the following blood tests as part of her investigations.
Hb 125 g/l
Platelets 390 * 109/l
WBC 9.5 * 109/l
ESR 78 mm/h
Rheumatoid Factor Negative
Antinuclear Antibody Negative
What is the most probable diagnosis?Your Answer: Psoriatic arthritis
Explanation:Although females in this age group can be affected by SLE and rheumatoid arthritis, the most probable diagnosis for this patient is psoriatic arthritis due to the presence of dactylitis and a first-degree relative with psoriasis. Furthermore, rheumatoid factor and antinucleur antibody are typically positive in rheumatoid arthritis, while antinucleur antibody is mainly positive in SLE. Gout usually targets the first metatarsophalangeal joint of the first toe.
Psoriatic arthropathy is a type of inflammatory arthritis that is associated with psoriasis. It is classified as one of the seronegative spondyloarthropathies and is known to have a poor correlation with cutaneous psoriasis. In fact, it often precedes the development of skin lesions. This condition affects both males and females equally, with around 10-20% of patients with skin lesions developing an arthropathy.
The presentation of psoriatic arthropathy can vary, with different patterns of joint involvement. The most common type is symmetric polyarthritis, which is very similar to rheumatoid arthritis and affects around 30-40% of cases. Asymmetrical oligoarthritis is another type, which typically affects the hands and feet and accounts for 20-30% of cases. Sacroiliitis, DIP joint disease, and arthritis mutilans (severe deformity of fingers/hand) are other patterns of joint involvement. Other signs of psoriatic arthropathy include psoriatic skin lesions, periarticular disease, enthesitis, tenosynovitis, dactylitis, and nail changes.
To diagnose psoriatic arthropathy, X-rays are often used. These can reveal erosive changes and new bone formation, as well as periostitis and a pencil-in-cup appearance. Management of this condition should be done by a rheumatologist, and treatment is similar to that of rheumatoid arthritis. However, there are some differences, such as the use of monoclonal antibodies like ustekinumab and secukinumab. Mild peripheral arthritis or mild axial disease may be treated with NSAIDs alone, rather than all patients being on disease-modifying therapy as with RA. Overall, psoriatic arthropathy has a better prognosis than RA.
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This question is part of the following fields:
- Musculoskeletal
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Question 44
Incorrect
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Which of the following is not an absolute contraindication to using combined oral contraceptive pills for women?
Your Answer: A 39-year-old who smokes 20 cigarettes/day
Correct Answer: Breast feeding a 10-week-old baby
Explanation:Breastfeeding is classified as UKMEC category 4 if done for less than 6 weeks after giving birth, but it is categorized as UKMEC category 2 if done after this period.
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.
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This question is part of the following fields:
- Reproductive Medicine
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Question 45
Correct
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A 6-year-old boy is brought to the Emergency Department by his parents. He has been feeling unwell for 6 days with diarrhoea and is now lethargic and pale. Despite drinking enough fluids, he has not urinated in over 14 hours. The child has no medical history and has received all of his vaccinations. His symptoms began 3 days after he ate a chicken burger at a fair. During the examination, the doctor noticed multiple petechiae on his torso and limbs, and his feet were swollen. What is the likely diagnosis, and what is the organism responsible for this patient's illness?
Your Answer: Escherichia coli
Explanation:This child’s symptoms, including oliguria, peripheral edema, petechial bruising, and pallor, suggest the possibility of hemolytic uremic syndrome (HUS). HUS is often associated with diarrheal illnesses and is characterized by normocytic anemia, thrombocytopenia, and acute kidney injury. The most common cause of HUS is Shiga-toxin producing Escherichia coli, which can be contracted from undercooked meat, such as a chicken burger from a carnival. While Campylobacter jejuni is a common cause of acute diarrhea, it is not typically associated with HUS. Clostridium perfringens can cause acute diarrhea and vomiting but is not associated with HUS. Salmonella species can also cause diarrheal illnesses, but they are not a common cause of HUS. In this case, Escherichia coli is the most likely causative organism.
Understanding Haemolytic Uraemic Syndrome
Haemolytic uraemic syndrome (HUS) is a condition that primarily affects young children and is characterized by a triad of symptoms, including acute kidney injury, microangiopathic haemolytic anaemia, and thrombocytopenia. The majority of cases are secondary and caused by Shiga toxin-producing Escherichia coli (STEC) 0157:H7, also known as ‘verotoxigenic’ or ‘enterohaemorrhagic’. Other causes of HUS include pneumococcal infection, HIV, systemic lupus erythematosus, drugs, and cancer. Primary HUS, also known as ‘atypical’, is caused by complement dysregulation.
To diagnose HUS, doctors may perform a full blood count to check for microangiopathic hemolytic anaemia and thrombocytopenia. A fragmented blood film may also be done to look for schistocytes and helmet cells. Additionally, a stool culture may be performed to check for evidence of STEC infection, and PCR for Shiga toxins may be done.
Treatment for HUS is supportive and may include fluids, blood transfusion, and dialysis if required. Antibiotics are not recommended, despite the preceding diarrhoeal illness in many patients. Plasma exchange may be considered for severe cases of HUS not associated with diarrhoea, while eculizumab, a C5 inhibitor monoclonal antibody, has shown greater efficiency than plasma exchange alone in the treatment of adult atypical HUS.
Overall, understanding the causes, symptoms, and management of HUS is crucial for healthcare professionals to provide appropriate care for patients with this condition.
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This question is part of the following fields:
- Paediatrics
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Question 46
Correct
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A mother is referred to a paediatric gynaecologist with her 12-year-old daughter. Her daughter is extremely short for her age, is deaf in both ears and has shown no signs of pubertal development. On examination, the clinician notes neck webbing, a high arched palate and low-set ears. He suspects that the child may have Turner syndrome.
Which of the following chromosomal abnormalities best describes Turner syndrome?Your Answer: 45,XO
Explanation:Understanding Turner Syndrome: Causes, Symptoms, and Treatment
Turner Syndrome is a genetic disorder that affects females and is caused by the absence of an entire sex chromosome or a partial deletion of the X chromosome. The normal female karyotype is 46XX, but in Turner Syndrome, it is 45X or 46XdelXp. This condition affects 1 in 2500 female births and is associated with various clinical features such as dwarfism, sexual infantilism, neck webbing, and streak gonads. Other associated stigmata include shield chest, high arched palate, low-set ears, lymphoedema, deafness, coarctation of the aorta, and pigmented moles.
Mosaicism is common in Turner Syndrome, which means that the severity of the condition can vary from person to person. Girls with Turner Syndrome are infertile and require hormone replacement therapy until menopause. Treatment aims to achieve normal pubertal progression through estradiol replacement therapy.
In conclusion, understanding Turner Syndrome is crucial for early diagnosis and management of the condition. With proper treatment and support, individuals with Turner Syndrome can lead healthy and fulfilling lives.
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This question is part of the following fields:
- Genetics
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Question 47
Correct
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A 61-year-old man presents to his GP with increasing mild confusion over the past 2 weeks. His husband has also noticed a decline in his mental state. The patient's medical history includes a road traffic accident 8 weeks ago, where he sustained a head injury but was discharged from the emergency department with no significant injuries. He denies any current symptoms of headache, nausea, or changes in vision. On examination, there are no focal neurological deficits, and both ocular and mental state exams are unremarkable. What is the most likely cause of this man's presentation?
Your Answer: Subdural haematoma
Explanation:Understanding Subdural Haemorrhage
A subdural haemorrhage is a condition where blood collects deep to the dural layer of the meninges. This collection of blood is not within the brain substance and is referred to as an ‘extra-axial’ or ‘extrinsic’ lesion. Subdural haematomas can be classified based on their age, which includes acute, subacute, and chronic. Although they occur within the same anatomical compartment, acute and chronic subdurals have significant differences in terms of their mechanisms, associated clinical features, and management.
An acute subdural haematoma is a collection of fresh blood within the subdural space and is commonly caused by high-impact trauma. This type of haematoma is associated with high-impact injuries, and there is often other underlying brain injuries. Symptoms and presentation vary depending on the size of the compressive acute subdural haematoma and the associated injuries. CT imaging is the first-line investigation, and surgical options include monitoring of intracranial pressure and decompressive craniectomy.
On the other hand, a chronic subdural haematoma is a collection of blood within the subdural space that has been present for weeks to months. Elderly and alcoholic patients are particularly at risk of subdural haematomas since they have brain atrophy and therefore fragile or taut bridging veins. Infants also have fragile bridging veins and can rupture in shaken baby syndrome. If the chronic subdural is an incidental finding or if it is small in size with no associated neurological deficit, it can be managed conservatively. However, if the patient is confused, has an associated neurological deficit, or has severe imaging findings, surgical decompression with burr holes is required.
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This question is part of the following fields:
- Neurology
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Question 48
Incorrect
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A 42-year-old woman has been asked to come back for a follow-up cervical smear by her GP. She had her routine cervical smear done a year ago which revealed the presence of high-risk HPV but no abnormal cytology. Her follow-up cervical smear still shows positive for high-risk HPV with no cytological abnormalities.
What is the best course of action for managing this patient?Your Answer: Repeat cervical smear in 6 months
Correct Answer: Repeat cervical smear in 12 months
Explanation:If the 1st repeat smear at 12 months is still positive for high-risk strains of human papillomavirus (hrHPV), the correct course of action is to repeat the smear 12 months later (i.e. at 24 months). Colposcopy is not indicated in this case, as it would only be necessary if this was her 3rd successive annual cervical smear that is still positive for hrHPV but with no cytological abnormalities. Repeating the cervical smear after 3 months is also not necessary, as this is only indicated if the first smear is inadequate. Similarly, repeating the cervical smear in 3 years is not appropriate, as hrHPV has been detected. Repeating the cervical smear after 6 months is also not necessary, as this is usually done as a test of cure following treatment for cervical intraepithelial neoplasia.
The cervical cancer screening program has evolved to include HPV testing, which allows for further risk stratification. A negative hrHPV result means a return to normal recall, while a positive result requires cytological examination. Abnormal cytology results lead to colposcopy, while normal cytology results require a repeat test at 12 months. Inadequate samples require a repeat within 3 months, and two consecutive inadequate samples lead to colposcopy. Treatment for CIN typically involves LLETZ or cryotherapy. Individuals who have been treated for CIN should be invited for a test of cure repeat cervical sample 6 months after treatment.
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This question is part of the following fields:
- Reproductive Medicine
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Question 49
Correct
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A 55-year-old man is referred to the Haematology Clinic under the 2-week-wait rule with significant fatigue and frequent infections over the past six months. His blood results confirm a diagnosis of chronic lymphocytic leukaemia (CLL) with a 17p chromosome deletion.
Which of the following is the most appropriate first-line treatment?Your Answer: Acalabrutinib
Explanation:Treatment Options for Chronic Lymphocytic Leukaemia (CLL)
The National Institute for Health and Care Excellence (NICE) has released new guidelines for managing newly diagnosed CLL in adults. Acalabrutinib is recommended as a monotherapy option if the patient has a 17p deletion or TP53 mutation, or if fludarabine plus cyclophosphamide and rituximab (FCR) or bendamustine plus rituximab (BR) are unsuitable. Prednisolone, a glucocorticoid commonly used in treating lymphoma, has no role in managing CLL. If there is no 17p deletion or TP53 mutation, FCR or BR would be the most appropriate first-line treatment. Conservative management is not recommended as the patient has developed signs of bone marrow dysfunction. Imatinib, the first-line treatment for CML, would not be useful for CLL.
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This question is part of the following fields:
- Haematology/Oncology
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Question 50
Correct
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A 42-year-old woman who is six weeks pregnant presents to the Cardiovascular Clinic with a swollen right leg. Doppler studies confirm a deep vein thrombosis (DVT). She has no signs or symptoms of a pulmonary embolism (PE) and is haemodynamically stable. What is the most appropriate management choice in this case?
Your Answer: Start subcutaneous low molecular weight heparin (LMWH) throughout pregnancy and change to warfarin in the postpartum period
Explanation:Treatment Options for Deep Vein Thrombosis in Pregnancy
Start subcutaneous low molecular weight heparin (LMWH) throughout pregnancy and change to warfarin in the postpartum period: LMWH is recommended for the treatment of DVT during pregnancy. Treatment should be continued for at least three months and until six weeks postpartum. Warfarin can be used after day five of the postpartum period. Both LMWH and warfarin are safe to use while breastfeeding.
Elastic band compression of the affected leg, bedrest, and foot elevation: These measures have no benefit in treating DVT and may even increase the risk of developing a pulmonary embolism (PE) or another DVT.
Commence intravenous (IV) heparin: IV heparin can be used for the treatment of a shocked patient with PE if thrombolysis is not possible. It should not be used for DVT alone.
Oral anticoagulation with warfarin daily throughout pregnancy and the postpartum period: Warfarin is not recommended during pregnancy as it can cross the placenta and increase the risk of congenital malformations and bleeding.
Aspirin 300 mg daily throughout pregnancy and the postpartum period: Aspirin is not effective in treating DVT or PE as it is an antiplatelet drug, not an anticoagulant.
Treatment Options for Deep Vein Thrombosis in Pregnancy
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This question is part of the following fields:
- Cardiovascular
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