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Question 1
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A 25-year-old male presents to the Emergency Department with severe abdominal pain. He is shivering and writhing in discomfort. Despite previous investigations, no cause for his pain has been found. He insists that he will harm himself unless he is given morphine. Which of the following terms best describes his behavior?
Your Answer: Malingering
Explanation:Fabricating or inflating symptoms for financial benefit is known as malingering, such as an individual who feigns whiplash following a car accident in order to receive an insurance payout.
This can be challenging as the individual may be experiencing withdrawal symptoms from opioid abuse. Nevertheless, among the given choices, the most suitable term to describe the situation is malingering since the individual is intentionally reporting symptoms to obtain morphine.
Psychiatric Terms for Unexplained Symptoms
There are various psychiatric terms used to describe patients who exhibit symptoms for which no organic cause can be found. One such disorder is somatisation disorder, which involves the presence of multiple physical symptoms for at least two years, and the patient’s refusal to accept reassurance or negative test results. Another disorder is illness anxiety disorder, which is characterized by a persistent belief in the presence of an underlying serious disease, such as cancer, despite negative test results.
Conversion disorder is another condition that involves the loss of motor or sensory function, and the patient does not consciously feign the symptoms or seek material gain. Patients with this disorder may be indifferent to their apparent disorder, a phenomenon known as la belle indifference. Dissociative disorder, on the other hand, involves the process of ‘separating off’ certain memories from normal consciousness, and may manifest as amnesia, fugue, or stupor. Dissociative identity disorder (DID) is the most severe form of dissociative disorder and was previously known as multiple personality disorder.
Factitious disorder, also known as Munchausen’s syndrome, involves the intentional production of physical or psychological symptoms. Finally, malingering is the fraudulent simulation or exaggeration of symptoms with the intention of financial or other gain. Understanding these psychiatric terms can help healthcare professionals better diagnose and treat patients with unexplained symptoms.
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This question is part of the following fields:
- Psychiatry
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Question 2
Correct
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Which of the subsequent anaesthetic agents possesses the most potent analgesic effect?
Your Answer: Ketamine
Explanation:Ketamine possesses a significant analgesic impact, making it suitable for inducing anesthesia during emergency procedures conducted outside of hospital settings, such as emergency amputations.
Overview of Commonly Used IV Induction Agents
Propofol, sodium thiopentone, ketamine, and etomidate are some of the commonly used IV induction agents in anesthesia. Propofol is a GABA receptor agonist that has a rapid onset of anesthesia but may cause pain on IV injection. It is widely used for maintaining sedation on ITU, total IV anesthesia, and day case surgery. Sodium thiopentone has an extremely rapid onset of action, making it the agent of choice for rapid sequence induction. However, it may cause marked myocardial depression and metabolites build up quickly, making it unsuitable for maintenance infusion. Ketamine, an NMDA receptor antagonist, has moderate to strong analgesic properties and produces little myocardial depression, making it a suitable agent for anesthesia in those who are hemodynamically unstable. However, it may induce a state of dissociative anesthesia resulting in nightmares. Etomidate has a favorable cardiac safety profile with very little hemodynamic instability but has no analgesic properties and is unsuitable for maintaining sedation as prolonged use may result in adrenal suppression. Postoperative vomiting is common with etomidate.
Overall, each of these IV induction agents has specific features that make them suitable for different situations. Anesthesiologists must carefully consider the patient’s medical history, current condition, and the type of surgery being performed when selecting an appropriate induction agent.
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This question is part of the following fields:
- Surgery
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Question 3
Incorrect
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A 30-year-old woman underwent a renal transplant two years ago due to end stage renal failure caused by haemolytic uraemic syndrome. She has been in good health since the transplant, without instances of rejection, and has been stable on antirejection therapy consisting of tacrolimus, prednisolone, and azathioprine. As both she and her donor were CMV seropositive, she is on valganciclovir prophylaxis. Additionally, she takes aspirin, bisoprolol, and paracetamol. She and her partner are contemplating trying to conceive. Which of her medications should she discontinue before attempting to conceive?
Your Answer: Azathioprine
Correct Answer: Valganciclovir
Explanation:The only teratogenic drug must be stopped prior to conception, while the risks of other medications must be balanced against the risks to the mother. The combination of tacrolimus, azathioprine, and steroids is considered the safest. If the patient is taking mycophenolate or sirolimus, they should be changed to azathioprine or a calcineurin inhibitor, respectively. Bisoprolol is generally safe in pregnancy, but if the patient becomes pregnant, they may need to switch to methyldopa or labetalol as alternative antihypertensives and receive closer monitoring in a joint clinic. Transplant patients should wait at least 12 months after surgery before trying to conceive and should be stable for at least six months without complications before doing so.
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This question is part of the following fields:
- Nephrology
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Question 4
Incorrect
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An 80-year-old nursing home resident with end-stage dementia has an acute bowel obstruction; she is not a suitable candidate for surgical intervention.
Which of the following medications may be most effective in reducing her discomfort?Your Answer: Lorazepam
Correct Answer: Loperamide hydrochloride
Explanation:Medications for Managing Bowel Obstruction in End-of-Life Care
Bowel obstruction during end-of-life care can be managed without surgery or nasogastric tube placement. Loperamide hydrochloride, an antidiarrhoeal medication, can provide relief by reducing bowel motility when used with an opiate analgesic. Ondansetron, an antiemetic, can treat nausea but may cause constipation by slowing gastric stasis. Dexamethasone can alleviate bowel discomfort by reducing inflammation and oedema caused by a tumour obstructing the bowel. Lorazepam can help alleviate distress or anxiety caused by symptoms, but it does not improve them. Paracetamol is a weak analgesic and is unlikely to relieve discomfort in this case.
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This question is part of the following fields:
- Palliative Care
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Question 5
Correct
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A 27-year-old man presents to his primary care physician with complaints of worsening back pain and stiffness over the past 5 months. He denies experiencing leg pain, loss of bladder or bowel control, or weakness in his lower extremities. The patient reports that the stiffness in his back tends to improve throughout the day. Upon examination, the physician notes mild tenderness directly over the lumbar spine and decreased range of motion with hip flexion. The patient has normal muscle strength in his lower extremities and intact sensation. X-ray results reveal sacroiliitis, vertebral squaring, and a ‘bamboo spine’. Which of the following is most likely associated with this patient’s condition?
Your Answer: Positive human leukocyte antigen HLA-B27
Explanation:Understanding Autoimmune Disorders: Differentiating Between Ankylosing Spondylitis, SLE, and Rheumatoid Arthritis
Autoimmune disorders can be difficult to diagnose due to their overlapping symptoms. However, certain laboratory tests can help differentiate between them.
One such test is the human leukocyte antigen (HLA)-B27, which is associated with ankylosing spondylitis. This autoimmune disorder primarily affects men and is characterized by back stiffness that improves throughout the day, sacroiliitis, and a bamboo spine on radiography.
On the other hand, positive antinuclear antibodies and anti-double-stranded DNA antibodies are associated with systemic lupus erythematosus (SLE). Patients with SLE may experience joint pain, skin rashes, and organ involvement.
Lastly, positive anti-cyclic citrullinated peptide (CCP) antibodies are associated with rheumatoid arthritis. This autoimmune disorder is characterized by joint pain, swelling, and stiffness, and can lead to joint deformities if left untreated.
In summary, understanding the specific laboratory tests associated with different autoimmune disorders can aid in their diagnosis and treatment.
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This question is part of the following fields:
- Rheumatology
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Question 6
Incorrect
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What is the most frequently occurring infectious agent linked to acute pyelonephritis?
Your Answer: Staphylococcus aureus
Correct Answer: Escherichia coli
Explanation:Common Pathogens in Acute Pyelonephritis
Acute pyelonephritis is commonly caused by Escherichia coli, which accounts for more than 80% of cases. Other pathogens that can cause this condition include Enterococcus faecalis, Klebsiella, and Proteus species. The infection typically begins in the bladder and then spreads to the renal parenchyma. At first, the bacteria multiply within the tubules. However, within 48 hours, damage to the tubular epithelium begins to occur.
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This question is part of the following fields:
- Infectious Diseases
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Question 7
Correct
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Which statement accurately reflects the results of a randomized controlled trial comparing sunscreen A and placebo for skin cancer prevention, where 100 patients were assigned to each group and 10% of patients in group A developed skin cancer with a relative risk of 0.7 compared to placebo?
Your Answer: The relative risk reduction for sunscreen A is 0.3
Explanation:When analyzing the results of a sunscreen study, it is important to consider the relative risk reduction. This value is calculated by subtracting the relative risk from 1. If the relative risk reduction is greater than 0, it means that the group receiving the sunscreen had a lower risk of skin cancer compared to the placebo group. However, without performing a statistical test, it is difficult to determine if the sunscreen is truly effective in preventing skin cancer.
Additionally, it is helpful to look at the absolute risk of skin cancer in the placebo group. In the given example, the absolute risk of skin cancer in group B was 14.2%. This value can be used to calculate the absolute risk reduction, which is the difference between the absolute risk of the placebo group and the absolute risk of the sunscreen group. In this case, the absolute risk reduction was 4.2%.
Overall, these values can provide insight into the effectiveness of a sunscreen in preventing skin cancer. However, it is important to note that further statistical analysis may be necessary to draw definitive conclusions.
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This question is part of the following fields:
- Clinical Sciences
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Question 8
Correct
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A 30-year-old woman is receiving treatment for a severe exacerbation of ulcerative colitis on a general medical ward. She is currently on IV steroids for the past 4 days. During the morning ward round, her bloods are taken to assess her illness. The results are as follows:
Na+ 136 mmol/L (135 - 145)
K+ 3.5 mmol/L (3.5 - 5.0)
Bicarbonate 25 mmol/L (22 - 29)
Urea 6.5 mmol/L (2.0 - 7.0)
Creatinine 112 µmol/L (55 - 120)
Magnesium 0.38 mmol/L (0.8 - 1.1)
CRP 32 (<5)
What would be the most appropriate next step in managing this patient's illness?Your Answer: IV magnesium
Explanation:The appropriate treatment for hypomagnesaemia is IV magnesium, especially if the patient’s magnesium level is below 0.4 mmol/L or if they are experiencing tetany, arrhythmias, or seizures. In this case, the patient’s hypomagnesaemia is likely caused by their ulcerative colitis-induced diarrhoea. Therefore, IV magnesium should be administered to correct the deficiency. There is no indication of infection, so IV antibiotics are not necessary at this time. Although the patient’s CRP is elevated due to their severe ulcerative colitis exacerbation, no action is not an appropriate response to the low magnesium level. While oral loperamide may help alleviate diarrhoea in patients without infection, it is not typically used in the management of ulcerative colitis exacerbations and will not address the abnormality in the patient’s blood results.
Understanding Hypomagnesaemia: Causes, Symptoms, and Treatment
Hypomagnesaemia is a condition characterized by low levels of magnesium in the blood. There are several causes of this condition, including the use of certain drugs such as diuretics and proton pump inhibitors, total parenteral nutrition, and chronic or acute diarrhoea. Alcohol consumption, hypokalaemia, hypercalcaemia, and metabolic disorders like Gitelman’s and Bartter’s can also lead to hypomagnesaemia. The symptoms of this condition may be similar to those of hypocalcaemia, including paraesthesia, tetany, seizures, and arrhythmias.
When the magnesium level drops below 0.4 mmol/L or when there are symptoms of tetany, arrhythmias, or seizures, intravenous magnesium replacement is commonly given. An example regime would be 40 mmol of magnesium sulphate over 24 hours. For magnesium levels above 0.4 mmol/L, oral magnesium salts are prescribed in divided doses of 10-20 mmol per day. However, diarrhoea can occur with oral magnesium salts. It is important to note that hypomagnesaemia can exacerbate digoxin toxicity.
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This question is part of the following fields:
- Pharmacology
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Question 9
Incorrect
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A 42-year-old man visits his doctor complaining of deteriorating vision. He states that his vision has been getting blurrier, particularly when reading. He denies experiencing any eye pain, redness, double vision, or other systemic symptoms. Upon examination, his visual acuity is measured using a Snellen chart and found to be 6/12 in both eyes. What is the most appropriate course of action to investigate a possible refractive error?
Your Answer: Cardiff Acuity Test
Correct Answer: Use of a pinhole occluder
Explanation:Identifying refractive error cannot be achieved through the use of tropicamide or lens decentration.
Understanding Blurred Vision
Blurred vision is a condition where there is a loss of clarity or sharpness of vision. It is a common symptom experienced by patients with long-term refractive errors. However, the term can mean different things to different patients and doctors, which is why it is important to assess for associated symptoms such as visual loss, double vision, and floaters.
There are various causes of blurred vision, including refractive errors, cataracts, retinal detachment, age-related macular degeneration, acute angle closure glaucoma, optic neuritis, and amaurosis fugax. To assess the condition, doctors may use a Snellen chart to measure visual acuity, pinhole occluders to check for refractive errors, visual fields, and fundoscopy.
The management of blurred vision depends on the suspected underlying cause. If the onset is gradual, corrected by a pinhole occluder, and there are no other associated symptoms, an optician review may be the next step. However, patients with other associated symptoms such as visual loss or pain should be seen by an ophthalmologist urgently. Understanding the causes and assessment of blurred vision is crucial in determining the appropriate management and treatment.
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This question is part of the following fields:
- Ophthalmology
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Question 10
Correct
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A 68-year-old woman presents to the Emergency Department with a 48-hour history of shortness of breath and an increased volume and purulence of sputum. She has a background history of chronic obstructive pulmonary disease (COPD), hypertension and ischaemic heart disease. Her observations show: heart rate (HR) 116 bpm, blood pressure (BP) 124/68 mmHg, respiratory rate (RR) 18 breaths per minute and oxygen saturation (SaO2) 94% on 2l/min via nasal cannulae. She is commenced on treatment for an infective exacerbation of COPD with nebulised bronchodilators, intravenous antibiotics, oral steroids and controlled oxygen therapy with a Venturi mask. After an hour of therapy, the patient is reassessed. Her observations after an hour are: BP 128/74 mmHg, HR 124 bpm, RR 20 breaths per minute and SaO2 93% on 24% O2 via a Venturi mask. Arterial blood gas sampling is performed:
Investigation Result Normal value
pH 7.28 7.35–7.45
PO2 8.6 kPa 10.5–13.5 kPa
pCO2 8.4 kPa 4.6–6.0 kPa
cHCO3- (P)C 32 mmol/l 24–30 mmol/l
Lactate 1.4 mmol/l 0.5–2.2 mmol/l
Sodium (Na+) 134 mmol/l 135–145 mmol/l
Potassium (K+) 3.8 mmol/l 3.5–5.0 mmol/l
Chloride (Cl-) 116 mmol/l 98-106 mmol/l
Glucose 5.4 mmol/l 3.5–5.5 mmol/l
Following this review and the arterial blood gas results, what is the most appropriate next step in this patient’s management?Your Answer: The patient should be considered for non-invasive ventilation (NIV)
Explanation:Management of Respiratory Acidosis in COPD Patients
The management of respiratory acidosis in COPD patients requires careful consideration of the individual’s condition. In this scenario, the patient should be considered for non-invasive ventilation (NIV) as recommended by the British Thoracic Society. NIV is particularly indicated in patients with a pH of 7.25–7.35. Patients with a pH of <7.25 may benefit from NIV but have a higher risk for treatment failure and therefore should be considered for management in a high-dependency or intensive care setting. However, NIV is not indicated in patients with impaired consciousness, severe hypoxaemia or copious respiratory secretions. It is important to note that a ‘Do Not Resuscitate Order’ should not be automatically made for patients with COPD. Each decision regarding resuscitation should be made on an individual basis. Intubation and ventilation should not be the first line of treatment in this scenario. A trial of NIV would be the most appropriate next step, as it has been demonstrated to reduce the need for intensive care management in this group of patients. Increasing the patient’s oxygen may be appropriate in type 1 respiratory failure, but in this case, NIV is the recommended approach. Intravenous magnesium therapy is not routinely recommended in COPD and is only indicated in the context of acute asthma. In conclusion, the management of respiratory acidosis in COPD patients requires a tailored approach based on the individual’s condition. NIV should be considered as the first line of treatment in this scenario.
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This question is part of the following fields:
- Respiratory
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Question 11
Incorrect
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A 28-year-old primigravida at 37 weeks presents to the antenatal unit with complaints of right-sided abdominal pain and vomiting. She denies any abnormal discharge and reports normal fetal movements. Her blood pressure is 148/97 mmHg and her blood results show Hb of 93 g/l, platelets of 89 * 109/l, WBC of 9.0 * 109/l, urate of 0.49 mmol/l, bilirubin of 32 µmol/l, ALP of 203 u/l, ALT of 190 u/l, and AST of 233 u/l. What is the most likely diagnosis?
Your Answer: Obstetric cholestasis
Correct Answer: HELLP syndrome
Explanation:The most probable diagnosis in this case is HELLP syndrome, which is a severe form of pre-eclampsia characterized by haemolysis, elevated liver enzymes, and low platelets. While hypertension, vomiting, and abdominal pain can support the diagnosis, they are not mandatory. The abdominal pain may indicate liver inflammation and stretching of the liver capsule.
Intense pruritus is the primary symptom of obstetric cholestasis, and a rise in serum bile acids is the most sensitive marker. Acute fatty liver is another severe condition associated with pre-eclampsia, which causes higher elevations in liver enzymes and deep jaundice. Hyperuricaemia can be a useful marker of pre-eclampsia and does not necessarily indicate gout. Urate levels increase due to reduced kidney function and clearance. Hyperemesis gravidarum is unlikely to present for the first time this late in pregnancy and should be a diagnosis of exclusion.
Pre-eclampsia is a condition that occurs during pregnancy and is characterized by high blood pressure, proteinuria, and edema. It can lead to complications such as eclampsia, neurological issues, fetal growth problems, liver involvement, and cardiac failure. Severe pre-eclampsia is marked by hypertension, proteinuria, headache, visual disturbances, and other symptoms. Risk factors for pre-eclampsia include hypertension in a previous pregnancy, chronic kidney disease, autoimmune disease, diabetes, chronic hypertension, first pregnancy, and age over 40. Aspirin may be recommended for women with high or moderate risk factors. Treatment involves emergency assessment, admission for observation, and medication such as labetalol, nifedipine, or hydralazine. Delivery of the baby is the most important step in management, with timing depending on the individual case.
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This question is part of the following fields:
- Obstetrics
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Question 12
Incorrect
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A 28-year-old accountant presents to the Emergency department with a sudden and severe headache that started six hours ago. She also reports feeling nauseous and has vomited three times. Upon examination, she has neck stiffness and photophobia, but her GCS is 15 and she has no fever. What is the most probable diagnosis?
Your Answer: Migraine
Correct Answer: Subarachnoid haemorrhage
Explanation:Diagnosing Severe Headaches: Subarachnoid Hemorrhage and Differential Diagnosis
The sudden onset of a severe headache is a strong indication of subarachnoid hemorrhage, which can be confirmed through a head CT scan. If the scan is normal, a lumbar puncture should be performed to check for red blood cells and xanthochromia. Bacterial meningitis is also a possible diagnosis, but it typically presents with other symptoms of sepsis such as fever. Migraines, on the other hand, are usually preceded by an aura and visual disturbances, and are often associated with prior history and risk factors. Sinusitis and cluster headaches are not suggested by the patient’s history.
Overall, it is important to consider a range of potential diagnoses when evaluating severe headaches, as prompt and accurate diagnosis is crucial for effective treatment.
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This question is part of the following fields:
- Emergency Medicine
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Question 13
Incorrect
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A 73-year-old man comes to the Emergency department after experiencing an injury while playing tennis. He felt something snap in his forearm while hitting a forehand shot. Upon examination, there is a noticeable lump above his elbow, about the size of an orange, and he has difficulty flexing his elbow. What type of injury is he likely to have sustained?
Your Answer: Distal biceps rupture
Correct Answer: Proximal biceps rupture
Explanation:The Biceps Brachii Muscle and Tendon Rupture
The biceps brachii muscle is located in the anterior compartment of the arm and is responsible for flexion. It has two heads, the short head attaching to the tip of the coracoid process of the scapula and the long head attaching to the supraglenoid tubercle of the scapula. The tendon of the long head crosses the head of the humerus within the glenohumeral joint and descends in the intertubercular groove of the humerus.
Rupture of the biceps tendon is usually caused by wear and tear of an inflamed tendon as it moves back and forth in the intertubercular groove of the humerus. This injury is common in older athletes, particularly baseball pitchers. The tendon is typically torn from its attachment to the supraglenoid tubercle of the scapula, resulting in a dramatic snap or pop and a ball-like bulge in the distal part of the arm.
While forceful flexion of the arm against excessive resistance can also cause biceps tendon rupture, it more commonly occurs as a result of repetitive overhead motions, such as those performed by swimmers. Conservative treatment is typically the best option, with patients becoming asymptomatic after four to six weeks. Surgical intervention is usually only necessary for cosmetic reasons or if shoulder reconstruction is required.
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This question is part of the following fields:
- Clinical Sciences
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Question 14
Incorrect
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A one-month-old baby boy develops bluish skin and mucous membrane discoloration. The pregnancy and delivery were uncomplicated. The arterial oxygen saturation is 70%, and the arterial partial pressure of oxygen is 35 mmHg (normal range is 75-100 mmHg) after receiving 100% oxygen. There are no signs of respiratory distress or pulmonary edema upon examination. What is the probable reason for the infant's discoloration?
Your Answer: Tricuspid atresia with atrial and ventricular septal defect
Correct Answer: Transposition of the great arteries (TGA)
Explanation:Causes of Cyanotic Congenital Heart Disease in Newborns
Cyanotic congenital heart disease is a condition that results in low oxygen levels in the blood, leading to a bluish discoloration of the skin. There are several causes of this condition in newborns, including transposition of the great arteries (TGA), tetralogy of Fallot with severe pulmonary stenosis, hypoplastic left heart syndrome, severe ventricular septal defect, and tricuspid atresia with atrial and ventricular septal defect.
Transposition of the great arteries (TGA) is the most common cause of cyanotic congenital heart disease in newborns. In this condition, the aorta and pulmonary trunk are switched, which is incompatible with life without an associated mixing defect such as atrial septal defect, ventricular septal defect, or patent ductus arteriosus.
Tetralogy of Fallot with severe pulmonary stenosis is another cause of cyanotic congenital heart disease in newborns. This condition results in cyanosis early after birth due to a severely stenotic pulmonary outflow, which maximizes the right-to-left shunt through the ventricular septal defect.
Hypoplastic left heart syndrome is a cyanotic congenital heart disease that is usually associated with pulmonary edema. This condition is caused by dysgenesis of the left ventricle, which leads to mixing of arterial and venous blood and subsequent cyanosis.
Severe ventricular septal defect results in left-to-right shunting of blood, which typically does not result in cyanosis until progressive cardiac decompensation occurs. This makes it an unlikely cause of cyanotic congenital heart disease in newborns who present with cyanosis immediately after birth.
Tricuspid atresia with atrial and ventricular septal defects is another cause of cyanotic congenital heart disease in newborns. This condition results in right-to-left blood shunting without pulmonary edema early after birth, but it is less common than other causes of cyanotic congenital heart disease.
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This question is part of the following fields:
- Paediatrics
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Question 15
Incorrect
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A 47-year-old woman presents to her General Practitioner (GP) with a 1-month history of post-coital bleeding, vaginal discomfort and intermittent vaginal discharge. She feels lethargic and reports unintentional weight loss. She is a single mother of two children and lives in shared accommodation with one other family. She is a smoker of 30 cigarettes a day. She has not engaged with the cervical screening programme.
Examination reveals a white lump on the cervix, associated with surface ulceration.
Cervical carcinoma is suspected.
Which of the following is a risk factor for developing cervical carcinoma?Your Answer: Late menopause
Correct Answer: Smoking
Explanation:Risk Factors for Cervical Carcinoma: Understanding the Role of Smoking, HPV, and Other Factors
Cervical carcinoma is a type of cancer that affects the cervix, the lower part of the uterus. While the exact causes of cervical carcinoma are not fully understood, several risk factors have been identified. In this article, we will explore some of the key risk factors associated with the development of cervical carcinoma, including smoking, HPV infection, late menopause, nulliparity, obesity, and the use of contraceptive pills.
Smoking is a significant risk factor for cervical carcinoma, accounting for 21% of cases in the UK. Nicotine and cotinine, two chemicals found in tobacco smoke, may directly damage DNA in cervical cells and act as a cofactor in HPV-driven carcinogenesis.
Persistent infection with HPV is the strongest risk factor for cervical carcinoma. Other risk factors include early sexual activity, low socio-economic status, co-infection with HIV, immunosuppression, and a family history of cervical carcinoma. Late menopause is a known risk factor for ovarian and endometrial carcinoma, but not cervical carcinoma. Nulliparity is associated with ovarian and endometrial carcinoma, but not cervical carcinoma. Obesity is a risk factor for endometrial carcinoma, but not cervical carcinoma.
The combined oral contraceptive pill has been associated with a small increase in the risk of developing cervical carcinoma, but there is no evidence to support an association with the progesterone-only pill.
In conclusion, understanding the risk factors associated with cervical carcinoma is important for prevention and early detection. Quitting smoking, practicing safe sex, and getting regular cervical cancer screenings can help reduce the risk of developing this type of cancer.
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This question is part of the following fields:
- Gynaecology
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Question 16
Incorrect
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A 33-year-old known insulin-dependent diabetic presents to the Emergency Department, feeling generally unwell and complaining of diarrhoea and vomiting. Their observations are within the normal range, and on examination they look pale and dehydrated.
A venous blood gas is performed which shows the following: pH 7.13, HCO3− 14, base excess −8.0. The result of the urea and electrolytes blood test are as follows: Na+ 140, K+ 4.0, Cl− 97, urea 4.5, creatinine 67.
What is the patient’s anion gap?Your Answer: 22
Correct Answer: 33
Explanation:Understanding the Anion Gap in Metabolic Acidosis
Metabolic acidosis is a condition where there is an excess of acid in the body. The anion gap is a useful tool for clinicians to determine the possible causes of metabolic acidosis. It represents the unmeasured anions in the plasma and is calculated using the formula: Anion gap = (sodium + potassium) − (chloride + bicarbonate). The normal range for the anion gap is 10–18 mmol/l, and values above 18 indicate a raised anion gap metabolic acidosis. This information helps narrow down the cause of the acidosis, which may not be obvious on initial assessment. A raised anion gap metabolic acidosis is due to a pathology where there are exogenous anions being produced that are not measured by routine blood tests, such as diabetic ketoacidosis, lactic acidosis, or antifreeze ingestion. Understanding the anion gap is crucial in diagnosing and treating metabolic acidosis.
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This question is part of the following fields:
- Clinical Biochemistry
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Question 17
Incorrect
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A 42-year-old man presents to his GP with complaints of persistent flu-like symptoms. Upon further inquiry, he reports experiencing fever, nausea, vomiting, muscle aches, weakness, and an itchy sensation for the past two weeks. He also mentions having red urine on a few occasions. The patient denies having any respiratory symptoms such as cough or haemoptysis. During the examination, the GP observes slight scleral icterus and small palpable purpura on the patient's lower legs and arms. Based on these findings, what is the most probable diagnosis?
Your Answer: Eosinophilic granulomatosis with polyangiitis
Correct Answer: Polyarteritis nodosa
Explanation:The presence of systemic vasculitic symptoms, along with signs of hepatitis B and the absence of pulmonary symptoms, indicates that the patient may have polyarteritis nodosa. The patient’s symptoms appear to be viral, except for the presence of itchiness, scleral jaundice, haematuria, and purpura, which suggest vasculitis. The absence of respiratory symptoms helps to eliminate other possible diagnoses, such as polymyalgia rheumatica. The patient’s scleral jaundice and itchiness may indicate obstructive hepatic impairment. Polyarteritis nodosa is strongly associated with hepatitis B infection and does not typically present with respiratory symptoms, unlike other types of vasculitis.
Polyarteritis Nodosa: Symptoms, Features, and Diagnosis
Polyarteritis nodosa (PAN) is a type of vasculitis that affects medium-sized arteries, causing inflammation and aneurysm formation. It is more common in middle-aged men and is often associated with hepatitis B infection. Symptoms of PAN include fever, malaise, weight loss, hypertension, and joint pain. It can also cause nerve damage, testicular pain, and a skin condition called livedo reticularis. In some cases, patients may experience kidney damage and renal failure. Diagnosis of PAN may involve testing for perinuclear-antineutrophil cytoplasmic antibodies (ANCA) and hepatitis B serology. Angiograms may also be used to detect changes in the affected arteries.
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This question is part of the following fields:
- Musculoskeletal
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Question 18
Incorrect
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A 45-year-old accountant presents to the GP with concerns about progressive difficulty in walking. He first noticed the onset of symptoms around eight months ago and has been finding it increasingly difficult to walk, although he has no problems in standing still. He has also noticed that he often loses his balance and feels rather unsteady of late. He has been researching his symptoms online and is worried that he may have Parkinson's disease.
With regard to Parkinson's disease, which of the following statements is correct?Your Answer: Fasciculation is rarely a feature
Correct Answer: Amyotrophic lateral sclerosis (ALS) occurs as a result of degeneration of the anterior horn cells of the spinal cord and upper motor neurones in the motor cortex
Explanation:Understanding Amyotrophic Lateral Sclerosis (ALS) and Motor Neurone Disease (MND)
Amyotrophic lateral sclerosis (ALS) is a type of motor neurone disease (MND) that affects the anterior horn cells of the spinal cord and upper motor neurones in the motor cortex. MND is a progressive disorder that leads to only motor deficits and affects middle-aged individuals, with a slight predominance in males. Neuronal loss occurs at all levels of the motor system, from the cortex to the anterior horn cells of the spinal cord. The prognosis for MND is poor, with a mean survival of 3-5 years from disease onset. Management is mainly symptomatic and requires a multidisciplinary approach, with early involvement of palliative care. The only licensed pharmacological agent in the UK is riluzole, which can increase survival by 3 months. Physical signs include both upper and lower motor neurone signs, with patients often developing prominent fasciculations. Sensation remains entirely intact, as this disease only affects motor neurones.
Understanding Amyotrophic Lateral Sclerosis (ALS) and Motor Neurone Disease (MND)
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This question is part of the following fields:
- Neurology
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Question 19
Incorrect
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Which of the following symptoms may suggest mania instead of hypomania?
Your Answer: Predominantly elevated mood
Correct Answer: Delusions of grandeur
Explanation:Understanding the Difference between Hypomania and Mania
Hypomania and mania are two terms that are often used interchangeably, but they actually refer to two different conditions. While both conditions share some common symptoms, there are some key differences that set them apart.
Mania is a more severe form of hypomania that lasts for at least seven days and can cause significant impairment in social and work settings. It may require hospitalization due to the risk of harm to oneself or others and may present with psychotic symptoms such as delusions of grandeur or auditory hallucinations.
On the other hand, hypomania is a lesser version of mania that lasts for less than seven days, typically 3-4 days. It does not impair functional capacity in social or work settings and is unlikely to require hospitalization. It also does not exhibit any psychotic symptoms.
Both hypomania and mania share common symptoms such as elevated or irritable mood, pressured speech, flight of ideas, poor attention, insomnia, loss of inhibitions, increased appetite, and risk-taking behavior. However, the length of symptoms, severity, and presence of psychotic symptoms help differentiate mania from hypomania.
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This question is part of the following fields:
- Psychiatry
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Question 20
Incorrect
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A 27-year-old woman who is at 38 weeks gestation is experiencing prolonged labour. She has developed gestational diabetes during her pregnancy, but it is well-controlled with insulin. During an attempt to expedite labour, an artificial rupture of membranes was performed. However, shortly after this, the cardiotocograph showed foetal bradycardia and variable decelerations. Upon examination, the umbilical cord was found to be palpable vaginally. Assistance has been requested.
What is the most appropriate course of action for managing this situation?Your Answer: Administer an IV oxytocin infusion
Correct Answer: Avoid handling the cord and keep it warm and moist
Explanation:In the case of umbilical cord prolapse, it is important to avoid handling the cord and keep it warm and moist to prevent vasospasm. This is especially crucial if the cord has passed the introitus. The prolapse may have been caused by artificial rupture of membranes, which is a risk factor. If there are signs of foetal distress, such as foetal bradycardia and late decelerations, it is considered an obstetric emergency. Attempting to place the cord back into the uterus is not recommended as it can cause vasospasm and reduce blood supply to the foetus, leading to complications such as death or permanent disability. Administering an IV oxytocin infusion is also not recommended as it can increase uterine contractions and worsen cord compression. Applying external suprapubic pressure is not relevant to the management of umbilical cord prolapse and is only used in cases of shoulder dystocia.
Understanding Umbilical Cord Prolapse
Umbilical cord prolapse is a rare but serious complication that can occur during delivery. It happens when the umbilical cord descends ahead of the presenting part of the fetus, which can lead to compression or spasm of the cord. This can cause fetal hypoxia and potentially irreversible damage or death. Certain factors increase the risk of cord prolapse, such as prematurity, multiparity, polyhydramnios, twin pregnancy, cephalopelvic disproportion, and abnormal presentations like breech or transverse lie.
Around half of all cord prolapses occur when the membranes are artificially ruptured. Diagnosis is usually made when the fetal heart rate becomes abnormal and the cord is palpable vaginally or visible beyond the introitus. Cord prolapse is an obstetric emergency that requires immediate management. The presenting part of the fetus may be pushed back into the uterus to avoid compression, and the cord should be kept warm and moist to prevent vasospasm. The patient may be asked to go on all fours or assume the left lateral position until preparations for an immediate caesarian section have been carried out. Tocolytics may be used to reduce uterine contractions, and retrofilling the bladder with saline can help elevate the presenting part. Although caesarian section is the usual first-line method of delivery, an instrumental vaginal delivery may be possible if the cervix is fully dilated and the head is low.
In conclusion, umbilical cord prolapse is a rare but serious complication that requires prompt recognition and management. Understanding the risk factors and appropriate interventions can help reduce the incidence of fetal mortality associated with this condition.
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This question is part of the following fields:
- Obstetrics
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Question 21
Incorrect
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A 28-year-old patient presents with progressive weakness of the arms and legs over 1 week. Three weeks earlier, she had an episode of diarrhoea lasting 5 days. Examination confirms distal weakness and ‘glove-and-stocking’ sensory loss.
What is the most likely diagnosis?Your Answer: Acute intermittent porphyria
Correct Answer: Guillain–Barré syndrome
Explanation:Differential Diagnosis for a Patient with Ascending Paralysis and Glove-and-Stocking Weakness
The patient presents with acute progressive ascending paralysis and glove-and-stocking weakness, which is typical of Guillain–Barré syndrome. However, cranial nerve palsies can also occur. It is important to consider other potential diagnoses, such as multiple sclerosis, subacute combined degeneration of the cord, diabetic neuropathy, and acute intermittent porphyria. MS is characterised by lesions separated in both space and time, while subacute combined degeneration of the cord is secondary to a deficiency of vitamin B12 and presents with progressive limb weakness, paraesthesiae, and visual disturbances. Diabetic neuropathy usually causes sensory impairment, not motor impairment, and acute intermittent porphyria manifests with a constellation of symptoms, including abdominal pain, peripheral and autonomic neuropathies, and proximal motor weakness. A thorough evaluation and diagnostic workup are necessary to determine the underlying cause of the patient’s symptoms.
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This question is part of the following fields:
- Neurology
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Question 22
Incorrect
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A 21-year-old man is brought to the psychiatrist by his father. He expresses concern for his son's mental health, as he has noticed him talking to himself frequently over the past 6 months. The patient is hesitant to speak with the psychiatrist and insists that his father stay in the room with him. During the psychiatric evaluation, it is revealed that the patient has been hearing a voice in his head for the past year, but denies any thoughts of self-harm or harm to others. The psychiatrist recommends a referral for further treatment, which causes the father to become emotional and question if he did something wrong as a parent. Which factor from the patient's history is a poor prognostic indicator for his condition?
Your Answer: Sudden onset
Correct Answer: Pre-morbid social withdrawal
Explanation:Schizophrenia is more likely to be diagnosed if the patient presents with Schneider’s first-rank symptoms, such as auditory hallucinations, which are characteristic of the condition. However, the presence of auditory hallucinations alone does not indicate a poor prognosis. A poor prognosis is associated with pre-morbid social withdrawal, low IQ, family history of schizophrenia, gradual onset of symptoms, and lack of an obvious precipitant. There is no known link between a family history of an eating disorder and a poor prognosis in schizophrenia.
Schizophrenia is a mental disorder that can have varying prognosis depending on certain factors. Some indicators associated with a poor prognosis include a strong family history of the disorder, a gradual onset of symptoms, a low IQ, a prodromal phase of social withdrawal, and a lack of an obvious precipitant. These factors can contribute to a more severe and chronic course of the illness, making it more difficult to manage and treat. It is important for individuals with schizophrenia and their loved ones to be aware of these indicators and seek appropriate treatment and support.
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This question is part of the following fields:
- Psychiatry
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Question 23
Correct
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A 26-year-old man is brought to his GP by his father as he is worried that his son has become socially withdrawn since puberty. Despite being regularly invited, he doesn't participate in after-work events. His father recently became concerned when his son stated that he doesn't need or want any friends. The patient has no significant medical history, denies alcohol dependence, and has recently been promoted at work. During the consultation, he remains with his arms folded and does not engage. There is no evidence of affection towards his father when he expresses his concern. What is the most likely diagnosis for this patient?
Your Answer: Schizoid personality disorder
Explanation:Personality disorders are a set of personality traits that are maladaptive and interfere with normal functioning in life. It is estimated that around 1 in 20 people have a personality disorder, which are typically categorized into three clusters: Cluster A, which includes Odd or Eccentric disorders such as Paranoid, Schizoid, and Schizotypal; Cluster B, which includes Dramatic, Emotional, or Erratic disorders such as Antisocial, Borderline (Emotionally Unstable), Histrionic, and Narcissistic; and Cluster C, which includes Anxious and Fearful disorders such as Obsessive-Compulsive, Avoidant, and Dependent.
Paranoid individuals exhibit hypersensitivity and an unforgiving attitude when insulted, a reluctance to confide in others, and a preoccupation with conspiratorial beliefs and hidden meanings. Schizoid individuals show indifference to praise and criticism, a preference for solitary activities, and emotional coldness. Schizotypal individuals exhibit odd beliefs and magical thinking, unusual perceptual disturbances, and inappropriate affect. Antisocial individuals fail to conform to social norms, deceive others, and exhibit impulsiveness, irritability, and aggressiveness. Borderline individuals exhibit unstable interpersonal relationships, impulsivity, and affective instability. Histrionic individuals exhibit inappropriate sexual seductiveness, a need to be the center of attention, and self-dramatization. Narcissistic individuals exhibit a grandiose sense of self-importance, lack of empathy, and excessive need for admiration. Obsessive-compulsive individuals are occupied with details, rules, and organization to the point of hampering completion of tasks. Avoidant individuals avoid interpersonal contact due to fears of criticism or rejection, while dependent individuals have difficulty making decisions without excessive reassurance from others.
Personality disorders are difficult to treat, but a number of approaches have been shown to help patients, including psychological therapies such as dialectical behavior therapy and treatment of any coexisting psychiatric conditions.
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This question is part of the following fields:
- Psychiatry
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Question 24
Incorrect
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A 28-year-old woman with Crohn's disease (CD) visits her primary care physician for a regular follow-up. During the examination, the doctor observes clubbing, hepatomegaly, and episcleritis, which are known signs linked with CD. What other non-intestinal symptom is commonly associated with CD?
Your Answer: Palmar erythema
Correct Answer: Pyoderma gangrenosum
Explanation:Extra-Intestinal Manifestations and Skin Conditions Associated with Inflammatory Bowel Disease
Inflammatory bowel disease (IBD), including Crohn’s disease (CD) and ulcerative colitis (UC), can present with extra-intestinal manifestations, with some features being more prevalent in one than the other. Joint complications are the most common, but other manifestations include eye inflammation, joint pain and stiffness, and liver and biliary tree issues. Additionally, CD can present with skin conditions such as pyoderma gangrenosum, while UC is associated with primary sclerosing cholangitis and cholangiocarcinoma.
Other skin conditions, such as necrobiosis lipoidica and palmar erythema, are not associated with IBD. Erythema multiforme is a drug-related skin rash, while lichen planus is a skin rash of unknown cause that is not associated with IBD. It is important for healthcare providers to be aware of these extra-intestinal manifestations and skin conditions when evaluating patients with IBD.
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This question is part of the following fields:
- Gastroenterology
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Question 25
Incorrect
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A 67-year-old woman presents with an inability to bear weight on her right thigh after a fall, accompanied by right incomplete atypical femoral fracture and left stress fractures. She had been experiencing vague bilateral thigh and groin pain for a month prior. Despite no metastatic spread to the femurs, she has a history of bony metastatic breast cancer, hypertension, heart failure, and depression. She has been taking spironolactone and furosemide for three years, Herceptin and alendronic acid for six years, and sertraline for ten years. Which medication is likely to have contributed to her condition?
Your Answer: Spironolactone
Correct Answer: Alendronic acid
Explanation:Atypical stress fractures are more likely to occur in patients taking bisphosphonates.
The correct medication in this case is alendronic acid, which is being used to treat bony metastases in a patient with breast cancer who is also receiving Herceptin. Bony pain or signs of fractures in a patient with a history of cancer should raise suspicion of increased activity of bony metastases. While investigations ruled out bony metastases to the femurs, other causes must be considered. Prolonged use of bisphosphonates, such as alendronic acid, can decrease the activity of osteoclasts and inhibit bone remodeling, leading to changes and damage in the bone that would normally have been repaired. This can result in brittle bones and increased fragility, which can lead to atypical stress fractures.
Furosemide, Herceptin, and sertraline are not associated with an increased risk of atypical stress fractures.
Bisphosphonates: Uses and Adverse Effects
Bisphosphonates are drugs that mimic the action of pyrophosphate, a molecule that helps prevent bone demineralization. They work by inhibiting osteoclasts, which are cells that break down bone tissue. This reduces the risk of bone fractures and can be used to treat conditions such as osteoporosis, hypercalcemia, Paget’s disease, and pain from bone metastases.
However, bisphosphonates can have adverse effects, including oesophageal reactions such as oesophagitis and ulcers, osteonecrosis of the jaw, and an increased risk of atypical stress fractures of the proximal femoral shaft in patients taking alendronate. Patients may also experience an acute phase response, which can cause fever, myalgia, and arthralgia. Hypocalcemia, or low calcium levels, can also occur due to reduced calcium efflux from bone, but this is usually not clinically significant.
To minimize the risk of adverse effects, patients taking oral bisphosphonates should swallow the tablets whole with plenty of water while sitting or standing. They should take the medication on an empty stomach at least 30 minutes before breakfast or other oral medications and remain upright for at least 30 minutes after taking the tablet. Hypocalcemia and vitamin D deficiency should be corrected before starting bisphosphonate treatment, and calcium supplements should only be prescribed if dietary intake is inadequate. The duration of bisphosphonate treatment varies depending on the patient’s level of risk, and some authorities recommend stopping treatment after five years for low-risk patients with a femoral neck T-score of > -2.5.
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This question is part of the following fields:
- Musculoskeletal
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Question 26
Incorrect
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A 25-year-old woman presents with a history of scant abnormal vaginal bleeding for 5 days before menses during each cycle over the past 6 months. She has been married for a year but has been unable to conceive. She experiences lower abdominal cramps during her menses and takes naproxen for relief. Additionally, she complains of pelvic pain during intercourse and defecation. On examination, mild tenderness is noted in the right adnexa. What is the most likely diagnosis?
Your Answer: Cervical cancer
Correct Answer: Endometriosis
Explanation:Common Causes of Abnormal Uterine Bleeding in Women
Abnormal uterine bleeding is a common gynecological problem that can have various underlying causes. Here are some of the most common causes of abnormal uterine bleeding in women:
Endometriosis: This condition occurs when the endometrial tissue grows outside the uterus, usually in the ovaries or pelvic cavity. Symptoms include painful periods, painful intercourse, painful bowel movements, and adnexal tenderness. Endometriosis can also lead to infertility.
Ovulatory dysfunctional uterine bleeding: This condition is caused by excessive production of vasoconstrictive prostaglandins in the endometrium during a menstrual period. Symptoms include heavy and painful periods. Non-steroidal anti-inflammatory drugs are the treatment of choice.
Cervical cancer: This type of cancer is associated with human papillomavirus infection, smoking, early intercourse, multiple sexual partners, use of oral contraceptives, and immunosuppression. Symptoms include vaginal spotting, post-coital bleeding, dyspareunia, and vaginal discharge. Cervical cancer is rare before the age of 25 and is unlikely to cause dysmenorrhea, dyspareunia, dyschezia, or adnexal tenderness.
Submucosal leiomyoma: This is a benign neoplastic mass of myometrial origin that protrudes into the intrauterine cavity. Symptoms include heavy and painful periods, but acute pain is rare.
Endometrial polyps: These are masses of endometrial tissue attached to the inner surface of the uterus. They are more common around menopausal age and can cause heavy or irregular bleeding. They are usually not associated with pain or menstrual cramps and are not pre-malignant.
Understanding the Common Causes of Abnormal Uterine Bleeding in Women
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This question is part of the following fields:
- Gynaecology
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Question 27
Correct
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A 28-year-old woman comes in for her 6-week postpartum check-up. She did not breastfeed and had a normal delivery. She wants to begin using contraception but is worried about any potential delay in her ability to conceive again within the next 1-2 years. What factor is most likely to cause a delay in her return to normal fertility?
Your Answer: Progesterone only injectable contraception
Explanation:Injectable Contraceptives: Depo Provera
Injectable contraceptives are a popular form of birth control in the UK, with Depo Provera being the main option available. This contraceptive contains 150 mg of medroxyprogesterone acetate and is administered via intramuscular injection every 12 weeks. It can be given up to 14 weeks after the last dose without the need for extra precautions. The primary method of action is by inhibiting ovulation, while secondary effects include cervical mucous thickening and endometrial thinning.
However, there are some disadvantages to using Depo Provera. Once the injection is given, it cannot be reversed, and there may be a delayed return to fertility of up to 12 months. Adverse effects may include irregular bleeding and weight gain, and there is a potential increased risk of osteoporosis. It should only be used in adolescents if no other method of contraception is suitable.
It is important to note that there are contraindications to using Depo Provera, such as current breast cancer (UKMEC 4) or past breast cancer (UKMEC 3). While Noristerat is another injectable contraceptive licensed in the UK, it is rarely used in clinical practice and is given every 8 weeks. Overall, injectable contraceptives can be an effective form of birth control, but it is important to weigh the potential risks and benefits before deciding on this method.
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This question is part of the following fields:
- Obstetrics
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Question 28
Incorrect
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A 65-year-old woman presents with abdominal pain that occurs after eating. She also reports weight loss due to her abdominal pain preventing her from eating large amounts. Her medical history includes stable angina and intermittent claudication caused by peripheral arterial disease. Upon examination, there are no visible abnormalities on the abdomen, but there is general tenderness upon palpation, no signs of organ enlargement, and normal bowel sounds. Routine blood tests, including full blood count, urea and electrolytes, and liver function tests, are normal. CT angiography shows an obstructed coeliac trunk and a stenosed but patent superior mesenteric artery. Which organ is most likely to be ischemic and contributing to this patient's symptoms?
Your Answer: Transverse colon
Correct Answer: Stomach
Explanation:Understanding Chronic Mesenteric Ischaemia and Organ Involvement
Chronic mesenteric ischaemia is a condition that occurs when there is reduced blood flow to the intestines due to the narrowing or blockage of major mesenteric vessels. Patients with this condition often present with postprandial abdominal pain, weight loss, and concurrent vascular co-morbidities. To develop symptoms, at least two of the major mesenteric vessels must be affected, with one of these two occluded.
The coeliac trunk is one of the major mesenteric vessels, and when it is occluded, the organs it supplies are at risk. These organs include the stomach, spleen, liver, gallbladder, pancreas, duodenum, and abdominal portion of the oesophagus.
The jejunum is supplied directly by the superior mesenteric artery, but it is less likely to be the cause of symptoms than a foregut structure supplied by the coeliac trunk. The transverse colon is supplied by the right and middle colic arteries and the left colic artery, but it is unlikely to be the cause of symptoms if neither the superior nor the inferior mesenteric artery is completely occluded. The descending colon is supplied by the left colic artery, but it is unlikely to be the organ causing symptoms if this artery is neither occluded nor stenosed. The ileum is also supplied by the superior mesenteric artery, but it is less likely to be the cause of symptoms than a foregut structure.
In summary, understanding the involvement of different organs in chronic mesenteric ischaemia can help in the diagnosis and management of this condition.
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This question is part of the following fields:
- Gastroenterology
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Question 29
Incorrect
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A 67-year-old male visits his doctor with complaints of urological symptoms. He reports frequent nighttime urination, urgency, difficulty initiating urination, and a weak stream. During a digital rectal exam, the doctor notes a smooth but enlarged prostate and orders a blood test to check PSA levels. To alleviate his symptoms, the doctor prescribes tamsulosin.
What is the mechanism of action of tamsulosin?Your Answer: α-2 antagonist
Correct Answer: α-1 antagonist
Explanation:The relaxation of smooth muscle is promoted by alpha-1 antagonists.
Benign prostatic hyperplasia (BPH) is a common condition that affects older men, with around 50% of 50-year-old men showing evidence of BPH and 30% experiencing symptoms. The risk of BPH increases with age, with around 80% of 80-year-old men having evidence of the condition. BPH typically presents with lower urinary tract symptoms (LUTS), which can be categorised into voiding symptoms (obstructive) and storage symptoms (irritative). Complications of BPH can include urinary tract infections, retention, and obstructive uropathy.
Assessment of BPH may involve dipstick urine tests, U&Es, and PSA tests. A urinary frequency-volume chart and the International Prostate Symptom Score (IPSS) can also be used to assess the severity of LUTS and their impact on quality of life. Management options for BPH include watchful waiting, alpha-1 antagonists, 5 alpha-reductase inhibitors, combination therapy, and surgery. Alpha-1 antagonists are considered first-line treatment for moderate-to-severe voiding symptoms, while 5 alpha-reductase inhibitors may be indicated for patients with significantly enlarged prostates and a high risk of progression. Combination therapy and antimuscarinic drugs may also be used in certain cases. Surgery, such as transurethral resection of the prostate (TURP), may be necessary in severe cases.
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This question is part of the following fields:
- Surgery
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Question 30
Incorrect
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A 45-year-old male presents with symptoms of polyuria and polydipsia. He is a non-smoker and drinks approximately 12 units of alcohol per week. He works as a taxi driver.
During examination, his BMI is found to be 33.4 kg/m2, and his blood pressure is 132/82 mmHg. All other aspects of his cardiovascular examination are normal.
Further investigations confirm a diagnosis of diabetes mellitus, with the following results:
- Fasting blood glucose: 12.1 mmol/L (3.0-6.0)
- HbA1c: 75 mmol/mol (20-42)
- Total cholesterol: 5.8 mmol/L (<5.2)
What would be the most appropriate initial treatment for this patient?Your Answer: Gliclazide
Correct Answer: Diet and lifestyle advice with metformin
Explanation:Early Use of Metformin for Type 2 Diabetes
Typical type 2 diabetes can be managed with diet and lifestyle advice along with metformin. However, the EASD/ADA guidelines were revised in 2007-2008 due to the growing evidence supporting the early use of metformin. As a result, relying solely on diet and lifestyle advice is no longer considered sufficient.
The updated guidelines emphasize the importance of early intervention with metformin to improve glycemic control and prevent complications associated with type 2 diabetes. This approach is particularly important for patients who are at high risk of developing cardiovascular disease or have other comorbidities. By starting treatment early, patients can achieve better outcomes and reduce the risk of long-term complications.
In summary, the early use of metformin is now recommended as a first-line treatment for type 2 diabetes, along with diet and lifestyle modifications. This approach can help patients achieve better glycemic control and reduce the risk of complications associated with the disease.
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This question is part of the following fields:
- Endocrinology
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Question 31
Correct
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A 75-year-old man presents to the Emergency Department with complaints of difficulty breathing. Upon examination, you observe that his trachea is centralized and there is decreased chest expansion on the left side, accompanied by a dull percussion note and diminished breath sounds. What is the diagnosis?
Your Answer: Pleural effusion
Explanation:Clinical Signs for Common Respiratory Conditions
Pleural effusion, pneumothorax, pulmonary embolism, pneumonia, and pulmonary edema are common respiratory conditions that require accurate diagnosis for proper management. Here are the clinical signs to look out for:
Pleural effusion: trachea central or pushed away from the affected side, reduced chest expansion on the affected side, reduced tactile vocal fremitus on the affected side, ‘stony dull’ or dull percussion note on the affected side, reduced air entry/breath sounds on the affected side, reduced vocal resonance on the affected side.
Pneumothorax: trachea central or pushed away from the affected side, reduced chest expansion on the affected side, reduced tactile vocal fremitus on the affected side, hyper-resonant percussion note on the affected side, reduced air entry/breath sounds on the affected side, reduced vocal resonance on the affected side.
Pulmonary embolism: respiratory examination is likely to be normal, there may be subtle signs related to the pulmonary embolism, eg pleural rub, or due to a chronic underlying chest disease.
Pneumonia: trachea central, chest expansion likely to be normal, increased tactile vocal fremitus over area(s) of consolidation, dull percussion note over areas of consolidation, reduced air entry/bronchial breath sounds/crepitations on auscultation.
Pulmonary edema: trachea central, chest expansion normal, normal vocal fremitus, resonant percussion note, likely to hear coarse basal crackles on auscultation.
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This question is part of the following fields:
- Respiratory
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Question 32
Incorrect
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John is a 28-year-old man who presents with complaints of fatigue, muscle pain, and dry eyes. He has also noticed a red-purple rash on his upper cheeks that worsens after sun exposure. Upon further inquiry, he reports frequent mouth ulcers. Based on these symptoms, you suspect systemic lupus erythematosus.
Initial laboratory tests show anemia and proteinuria on urinalysis.
Which test would be most suitable to rule out this diagnosis?Your Answer: Complement level
Correct Answer: Antinuclear antibody (ANA)
Explanation:The presence of anti-nuclear antibodies (ANA) is common in the adult population, but it is not a reliable diagnostic tool for autoimmune rheumatic disease without additional clinical features. To accurately diagnose systemic lupus erythematosus (SLE), the presence of anti-dsDNA antibodies, low complement levels, or anti-Smith (Sm) antibodies in patients with relevant clinical features is highly predictive. However, these markers cannot be used as rule-out tests, as there is still a chance of SLE even with a negative result. Anti-Ro/La antibodies are less specific to SLE, as they are also found in other autoimmune rheumatic disorders.
Systemic lupus erythematosus (SLE) can be investigated through various tests, including antibody tests. ANA testing is highly sensitive, making it useful for ruling out SLE, but it has low specificity. About 99% of SLE patients are ANA positive. Rheumatoid factor testing is positive in 20% of SLE patients. Anti-dsDNA testing is highly specific (>99%), but less sensitive (70%). Anti-Smith testing is also highly specific (>99%), but only 30% of SLE patients test positive. Other antibody tests include anti-U1 RNP, SS-A (anti-Ro), and SS-B (anti-La).
Monitoring of SLE can be done through various markers, including inflammatory markers such as ESR. During active disease, CRP levels may be normal, but a raised CRP may indicate an underlying infection. Complement levels (C3, C4) are low during active disease due to the formation of complexes that lead to the consumption of complement. Anti-dsDNA titres can also be used for disease monitoring, but it is important to note that they are not present in all SLE patients. Proper monitoring of SLE is crucial for effective management of the disease.
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This question is part of the following fields:
- Musculoskeletal
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Question 33
Incorrect
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A 35-year-old male was given steroids after a kidney transplant. After two years, he experienced hip pain and difficulty walking. What is the most probable cause of his symptoms?
Your Answer: Aluminium toxicity
Correct Answer: Avascular necrosis
Explanation:Avascular Necrosis and Its Causes
Avascular necrosis (AVN) is a condition that occurs when the blood supply to the bones is temporarily or permanently lost. This can be caused by various factors, including trauma or vascular disease. Some of the conditions that can lead to AVN include hypertension, sickle cell disease, caisson disease, and radiation-induced arthritis. Additionally, certain factors such as corticosteroid therapy, connective tissue disease, alcohol abuse, marrow storage disease (Gaucher’s disease), and dyslipoproteinaemia can also be associated with AVN in a more complex manner.
Of all the cases of non-traumatic avascular necrosis, 35% are associated with systemic (oral or intravenous) corticosteroid use. It is important to understand the causes of AVN in order to prevent and manage the condition effectively. By identifying the underlying factors that contribute to AVN, healthcare professionals can develop appropriate treatment plans and help patients manage their symptoms. With proper care and management, individuals with AVN can lead healthy and fulfilling lives.
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This question is part of the following fields:
- Nephrology
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Question 34
Incorrect
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A 45-year-old man with dyspepsia and a history of recurrent peptic ulcer disease presents with intractable watery diarrhoea and weight loss. He has multiple gastric and duodenal peptic ulcers, which are poorly responding to medications such as antacids and omeprazole. Gastric acid output and serum gastrin level are elevated. Serum gastrin level fails to decrease following a test meal. On abdominal computerised tomography (CT) scan, no masses are found in the pancreas or duodenum.
Which one of the following drugs is useful for this patient?Your Answer:
Correct Answer: Octreotide
Explanation:Treatment Options for Gastrinoma: Octreotide, Somatostatin Antagonist, Bromocriptine, Pergolide, and Leuprolide
Gastrinoma is a rare condition characterized by multiple, recurrent, and refractory peptic ulcer disease, along with watery diarrhea and weight loss. The diagnosis is supported by an elevated serum gastrin level that is not suppressed by the test meal. While neoplastic masses of gastrinoma may or may not be localized by abdominal imaging, treatment options are available.
Octreotide, a synthetic somatostatin, is useful in the treatment of gastrinoma, acromegaly, carcinoid tumor, and glucagonoma. Somatostatin is an inhibitory hormone in several endocrine systems, and a somatostatin antagonist would increase gastrin, growth hormone, and glucagon secretion. However, it has no role in the treatment of gastrinoma.
Bromocriptine, a dopamine agonist, is used in the treatment of Parkinson’s disease, hyperprolactinemia, and pituitary tumors. Pergolide, another dopamine receptor agonist, was formerly used in the treatment of Parkinson’s disease but is no longer administered due to its association with valvular heart disease. Neither medication has a role in the treatment of gastrinoma.
Leuprolide, a gonadotropin-releasing hormone (GnRH) receptor agonist, is used in the treatment of sex hormone-sensitive tumors such as prostate or breast cancer. It also has no role in the treatment of gastrinoma. Overall, octreotide remains the primary treatment option for gastrinoma.
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This question is part of the following fields:
- Gastroenterology
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Question 35
Incorrect
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A 28-year-old woman with clinical signs of hyperandrogenism (hirsutism, severe acne and pigmented areas of skin in the axillae) and multiple ovarian cysts, demonstrated on ultrasound scan of both ovaries, has been trying to conceive for six months, but her periods are irregular. She has lost 2 stones in weight and attends clinic for further advice on management.
What is the most appropriate step in the management of this 28-year-old patient with clinical signs of hyperandrogenism, multiple ovarian cysts, irregular periods, and a desire to conceive, who has lost 2 stones in weight?Your Answer:
Correct Answer: Clomiphene citrate
Explanation:Treatment Options for Infertility in Women with PCOS
Polycystic ovary syndrome (PCOS) is a common cause of infertility in women. Clomiphene citrate is the first-line medication used to induce ovulation in women with PCOS who wish to conceive. It works by binding to hypothalamic estrogen receptors, inhibiting the negative feedback on follicle-stimulating hormone (FSH) and triggering ovulation. However, it is important to counsel women about the increased risk of multiple pregnancy when treated with Clomiphene. Metformin, once considered a viable option for PCOS-related infertility, is now considered inferior to Clomiphene. However, it can be used in combination with Clomiphene to increase the success of ovulation induction. Gonadotrophins are recommended as second-line treatment for women who do not respond to Clomiphene. Laparoscopic ovarian drilling is a surgical option reserved for cases where Clomiphene has failed. It involves destroying ovarian stroma to reduce androgen-secreting tissue and induce ovulation. The choice of treatment depends on individual patient factors and should be discussed with a healthcare provider.
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This question is part of the following fields:
- Gynaecology
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Question 36
Incorrect
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A 50-year-old woman arrives at the emergency department complaining of palpitations, dizziness, and lightheadedness. Upon conducting an ECG, torsades de pointes is observed. Which medication is the most probable cause of the cardiac anomaly?
Your Answer:
Correct Answer: Citalopram
Explanation:Citalopram, an SSRI used to treat major depressive disorder, has been identified as the most likely to cause QT prolongation and torsades de pointes. In 2011, the MHRA issued a warning against its use in patients with long-QT syndrome. While fluoxetine and sertraline can also cause prolonged QT, citalopram is more frequently associated with this side effect. Gentamicin, a bactericidal antibiotic, does not appear to cause QT prolongation or torsades de pointes. Although sertraline is another SSRI that can cause prolonged QT, citalopram remains the most concerning in this regard.
Selective serotonin reuptake inhibitors (SSRIs) are commonly used as the first-line treatment for depression. Citalopram and fluoxetine are the preferred SSRIs, while sertraline is recommended for patients who have had a myocardial infarction. However, caution should be exercised when prescribing SSRIs to children and adolescents. Gastrointestinal symptoms are the most common side-effect, and patients taking SSRIs are at an increased risk of gastrointestinal bleeding. Patients should also be aware of the possibility of increased anxiety and agitation after starting a SSRI. Fluoxetine and paroxetine have a higher propensity for drug interactions.
The Medicines and Healthcare products Regulatory Agency (MHRA) has issued a warning regarding the use of citalopram due to its association with dose-dependent QT interval prolongation. As a result, 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 is now 40 mg for adults, 20 mg for patients older than 65 years, and 20 mg for those with hepatic impairment.
When initiating antidepressant therapy, patients should be reviewed by a doctor after 2 weeks. Patients under the age of 25 years or at an increased risk of suicide should be reviewed after 1 week. If a patient responds well to antidepressant therapy, they should continue treatment for at least 6 months after remission to reduce the risk of relapse. When stopping a SSRI, the dose should be gradually reduced over a 4 week period, except for fluoxetine. Paroxetine has a higher incidence of discontinuation symptoms, including mood changes, restlessness, difficulty sleeping, unsteadiness, sweating, gastrointestinal symptoms, and paraesthesia.
When considering the use of SSRIs during pregnancy, the benefits and risks should be weighed. Use during the first trimester may increase the risk of congenital heart defects, while use during the third trimester can result in persistent pulmonary hypertension of the newborn. Paroxetine has an increased risk of congenital malformations, particularly in the first trimester.
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This question is part of the following fields:
- Psychiatry
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Question 37
Incorrect
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An 88-year-old man presents to the Emergency Department with severe pain in his left leg, below the knee. This pain came on suddenly an hour ago, after walking to his bathroom. He knows that he gets claudication on walking over 250 metres, and is unsure if this pain is the same. His medical history includes hypertension, controlled with amlodipine 5 mg od. On examination, his left leg below the knee is pale, cold and numb, with absent dorsalis pedis and posterior tibial pulses, but present pulses on his right leg.
Given the likely diagnosis, what is the most appropriate management?Your Answer:
Correct Answer: Embolectomy
Explanation:Treatment Options for Acute Limb Ischaemia: Embolectomy and Thrombolysis
Acute limb ischaemia can be caused by either an embolus or a thrombosis. The diagnosis is clinical and can be remembered using the 6Ps: Pale, Pulseless, Paraesthesia, Pain, Paralysis, and Perishingly cold. In the case of an embolic cause, urgent embolectomy using a Fogarty catheter to retrieve the clot is the appropriate treatment. Post-embolectomy, patients should be anticoagulated with IV heparin and then switched over to warfarin.
Thrombolysis is the appropriate treatment if the ischaemia is caused by a thrombosis. However, based on the clinical history, if the patient has an embolic cause, thrombolysis is not recommended. Thrombosis tends to present over hours to days, with a history of claudication and is less severe as collateral blood supply develops. Contralateral pulses tend to be absent.
Amputation below the right knee is an effective treatment but should only be considered by experienced consultants as it will have serious long-term implications for patients. Because the man has presented relatively quickly, it is unlikely that amputation will be required.
High dose warfarin is not a treatment for acute limb ischaemia. The clot needs to be removed.
Angiography is not performed when complete occlusion is suggested by the clinical picture, as it introduces a delay in revascularisation. In an incomplete occlusion, angiography is used to place stents to open the vessels.
In summary, the appropriate treatment for acute limb ischaemia caused by an embolus is embolectomy, while thrombolysis is the appropriate treatment for ischaemia caused by a thrombosis. Amputation should only be considered as a last resort, and high dose warfarin is not a treatment option. Angiography and stenting are only used in cases of incomplete occlusion.
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This question is part of the following fields:
- Vascular
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Question 38
Incorrect
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A 26-year-old woman comes to you at 18 weeks’ gestation, feeling very anxious. She spent one day last week taking care of her sick nephew who had cold symptoms, and a few days later, her nephew developed a facial rash resembling a ‘slapped cheek’. The patient informs you that she herself had some myalgia and fever for two days, and today she developed a rash on her trunk and back.
Upon examination, her temperature is 37.7 °C and there is a maculopapular rash on her trunk and back with a lace-like appearance.
The blood tests reveal:
rubella: immunoglobulin M (IgM) negative, immunoglobulin G (IgG) positive
parvovirus B19: IgM positive, IgG negative.
What should be the next course of action in managing this patient?Your Answer:
Correct Answer: Arrange urgent referral to a specialist Fetal Medicine Unit (to be seen within 4 weeks) and do serial ultrasound scans
Explanation:Management of Parvovirus B19 Infection in Pregnancy
Parvovirus B19 infection in pregnancy can have detrimental effects on the developing fetus. Therefore, it is important to manage the infection appropriately. Here are some key steps to take:
1. Arrange urgent referral to a specialist Fetal Medicine Unit (to be seen within 4 weeks) and do serial ultrasound scans to monitor fetal growth and assess for complications.
2. Arrange fetal blood sampling and transfusion if there is an indication of fetal infection.
3. Advise the woman to avoid going to work and contact with other pregnant women for at least five days to prevent transmission of the infection.
4. Give one dose of varicella-zoster virus (VZV) immunoglobulin and review in five days if the woman was exposed to chickenpox and is not immune to VZV.
5. Suggest paracetamol as required and plenty of fluids at present for the management of myalgia and arthralgia associated with the infection.
It is important to confirm the diagnosis of parvovirus B19 infection with serology on at least two separate samples and to monitor the woman and fetus closely for potential complications. With appropriate management, the risk of fetal morbidity and mortality can be reduced.
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This question is part of the following fields:
- Obstetrics
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Question 39
Incorrect
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A 55-year-old male patient reports experiencing excessive thirst and frequent urination for the past three months. What diagnostic measurement would confirm a diagnosis of diabetes mellitus?
Your Answer:
Correct Answer: A fasting plasma glucose of 7.5 mmol/L
Explanation:Diabetes mellitus is diagnosed based on symptoms and a random glucose level above 11.1 mmol/L or fasting plasma glucose above 7 mmol/L or the two hour oral glucose tolerance test. Impaired glucose tolerance is indicated by a post OGTT plasma glucose between 7.7 and 11.1 or a fasting plasma glucose between 6.1 and 7. HbA1c of 48 mmol/mol (6.5%) is recommended as the cut point for diagnosing diabetes for suitable groups. A value of less than 48 mmol/mol (6.5%) does not exclude diabetes diagnosed using glucose test.
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This question is part of the following fields:
- Clinical Sciences
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Question 40
Incorrect
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A 35-year-old man has just returned from a trip to Kenya. He has been experiencing a productive cough with blood-stained sputum, fever, and general malaise for the past week. Upon testing his sputum, he is diagnosed with tuberculosis and is prescribed isoniazid, rifampicin, pyrazinamide, and ethambutol for the initial phase of treatment. What drugs will he take during the continuation phase, which will last for four months after the initial two-month phase?
Your Answer:
Correct Answer: Rifampicin + Isoniazid
Explanation:Treatment Options for Tuberculosis: Medications and Considerations
Tuberculosis (TB) is a serious infectious disease that requires prompt and effective treatment. The following are some of the medications used in the treatment of TB, along with important considerations to keep in mind:
Rifampicin + Isoniazid
This combination is used in the initial treatment of TB, which lasts for two months. Before starting treatment, it is important to check liver and kidney function, as these medications can be associated with liver toxicity. Ethambutol should be avoided in patients with renal impairment. If TB meningitis is diagnosed, the continuation phase of treatment should be extended to 10 months and a glucocorticoid should be used in the first two weeks of treatment. Side effects to watch for include visual disturbances with ethambutol and peripheral neuropathy with isoniazid.Rifampicin + Pyrazinamide
Pyrazinamide is used only in the initial two-month treatment, while rifampicin is used in both the initial and continuation phases.Pyrazinamide + Ethambutol
These medications are used only in the initial stage of TB treatment.Rifampicin alone
Rifampicin is used in combination with isoniazid for the continuation phase of TB treatment.Rifampicin + Ethambutol
Rifampicin is used in the continuation phase, while ethambutol is used only in the initial two-month treatment.It is important to work closely with a healthcare provider to determine the best treatment plan for TB, taking into account individual patient factors and potential medication side effects.
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This question is part of the following fields:
- Respiratory
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Question 41
Incorrect
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A 32-year-old male patient with a history of von Hippel-Lindau syndrome presents to the clinic with a painful swelling in his right scrotum. Upon examination, a 4 mm lump is palpable behind and distinct from the right testicle. There is no significant scrotal enlargement, redness, or discomfort during urination. The patient has normal vital signs and is afebrile, and tumour markers are within normal limits. What is the probable diagnosis?
Your Answer:
Correct Answer: Epididymal cyst
Explanation:Scrotal swelling that can be felt separately from the testicle may be caused by an epididymal cyst.
Epididymal cysts are a prevalent reason for scrotal swellings that are frequently encountered in primary care. These cysts are typically found at the back of the testicle and are separate from the body of the testicle. They are often associated with other medical conditions such as polycystic kidney disease, cystic fibrosis, and von Hippel-Lindau syndrome. To confirm the diagnosis, an ultrasound may be performed.
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This question is part of the following fields:
- Surgery
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Question 42
Incorrect
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A 3-year-old child presents with a large bruise on the thigh after a fall. His mother notes that he has always been prone to bruising. Tests reveal: haemoglobin (Hb) 112g/l, platelets 186 × 109/l, prothrombin time (PT) 10 s, activated partial thromboplastin time (APTT) 70 s and normal bleeding time.
What is the most probable diagnosis?Your Answer:
Correct Answer: Haemophilia A
Explanation:Common Bleeding Disorders in Children
Haemophilia A, von Willebrand disease, vitamin K deficiency, childhood cirrhosis, and idiopathic thrombocytopenic purpura (ITP) are common bleeding disorders in children.
Haemophilia A is an X-linked recessive inherited bleeding disorder caused by a deficiency in coagulation factor VIII. Patients present with prolonged bleeding after minor trauma, haematoma formation, spontaneous bleeding into joints, soft tissue haemorrhage, and other symptoms. Management involves regular infusions of factor VIII.
Von Willebrand disease is an inherited bleeding disorder caused by deficiency in vWF. It presents with easy bruising, prolonged bleeding following minor trauma, heavy bleeding following an operation, and other symptoms. Treatment is with the administration of desmopressin, recombinant vWF or a combination of vWF and factor VIII.
Vitamin K deficiency can occur at any point during a person’s life, but it is most commonly encountered in infancy. Patients most commonly present with prolonged bleeding following minor trauma. This is corrected by the administration of vitamin K.
Childhood cirrhosis has multiple causes, depending on the age of the patient. In this case, there will be deranged liver function tests, as well as a prolonged PT that is not corrected despite administration of adequate vitamin K. This is an indicator of poor liver synthetic function.
Idiopathic thrombocytopenic purpura (ITP) is a primary condition caused by a low number of platelets. It presents with bleeding, bruises, and petechiae.
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This question is part of the following fields:
- Paediatrics
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Question 43
Incorrect
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A 28-year-old woman with her first pregnancy comes to you at 32-weeks gestation complaining of itchiness. Upon examination, there is no rash present. After being referred to an obstetrician, she is diagnosed with intrahepatic cholestasis of pregnancy and prescribed ursodeoxycholic acid. During her visit, the patient mentions that her obstetrician mentioned something about her labor, but she didn't quite understand.
What plans need to be made for this patient's labor?Your Answer:
Correct Answer: Induction of labour at 37-38 weeks gestation
Explanation:Due to the increased risk of stillbirth associated with intrahepatic cholestasis of pregnancy, induction of labour is typically recommended at 37-38 weeks gestation. Therefore, a normal labour is not appropriate for this patient. Ursodeoxycholic acid is used to treat the intense pruritus associated with this condition. While a caesarean section may be necessary on an emergency basis, it is not necessarily indicated at 37-38 weeks. Similarly, a caesarean section at 40 weeks is not currently warranted, as complications or emergencies may arise later in pregnancy. Induction of labour at 40 weeks is also not recommended, as it is later than the suggested timeline for minimising the risk of stillbirth.
Intrahepatic Cholestasis of Pregnancy: Symptoms and Management
Intrahepatic cholestasis of pregnancy, also known as obstetric cholestasis, is a condition that affects approximately 1% of pregnancies in the UK. It is characterized by intense itching, particularly on the palms, soles, and abdomen, and may also result in clinically detectable jaundice in around 20% of patients. Raised bilirubin levels are seen in over 90% of cases.
The management of intrahepatic cholestasis of pregnancy typically involves induction of labor at 37-38 weeks, although this practice may not be evidence-based. Ursodeoxycholic acid is also widely used, although the evidence base for its effectiveness is not clear. Additionally, vitamin K supplementation may be recommended.
It is important to note that the recurrence rate of intrahepatic cholestasis of pregnancy in subsequent pregnancies is high, ranging from 45-90%. Therefore, close monitoring and management are necessary for women who have experienced this condition in the past.
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This question is part of the following fields:
- Obstetrics
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Question 44
Incorrect
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A 35-year-old woman experiences a significant tear in the posterior region during childbirth, raising concerns about potential damage to the muscles that support continence. What structures offer the most muscular support to the pelvic floor?
Your Answer:
Correct Answer: Pubococcygeus
Explanation:The Impact of Childbirth on the Pelvic Floor
During childbirth, the pelvic floor plays a crucial role in supporting the fetal head while the cervix dilates to allow delivery of the baby. However, this process can result in injuries to the perineum, levator ani, and pelvic fascia. The levator ani muscle is composed of three parts, with the pubococcygeus being the most significant and the most easily damaged during childbirth. This muscle encircles and supports the urethra, vagina, and anal canal, making it essential for maintaining their proper position.
The puborectalis muscle forms a sling that kinks the anal canal and fuses with the external anal sphincter. Although it is also part of the levator ani muscle, it is less developed than the pubococcygeus and is less frequently damaged during childbirth. The weakening of the levator ani and pelvic fascia due to stretching or tearing during childbirth can cause changes in the position of the bladder neck and urethra, leading to urinary stress incontinence. This condition is characterized by the dribbling of urine when intra-abdominal pressure is raised, such as during coughing and lifting. Overall, childbirth can have a significant impact on the pelvic floor, and it is essential to take steps to prevent and manage any resulting injuries.
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This question is part of the following fields:
- Clinical Sciences
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Question 45
Incorrect
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What is a true statement about obsessive compulsive disorder (obsessional neurosis)?
Your Answer:
Correct Answer: Patients have good insight
Explanation:Obsessional Neurosis and Obsessional Compulsive Disorder
Obsessional neurosis is a mental disorder characterized by repetitive rituals, irrational fears, and disturbing thoughts that are often not acted upon. Patients with this condition maintain their insight and are aware of their illness, which can lead to depression. On the other hand, obsessional compulsive disorder is a similar condition that typically starts in early adulthood and affects both sexes equally. Patients with this disorder often have above-average intelligence.
It is important to note that Sigmund Freud’s theory that obsessive compulsive symptoms were caused by rigid toilet-training practices is no longer widely accepted. Despite this, the causes of these disorders are still not fully understood. However, treatment options such as cognitive-behavioral therapy and medication can help manage symptoms and improve the quality of life for those affected. these disorders and seeking appropriate treatment can make a significant difference in the lives of those who suffer from them.
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This question is part of the following fields:
- Psychiatry
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Question 46
Incorrect
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An 80-year-old man has been diagnosed with osteoporosis after suffering a vertebral fracture. You plan to prescribe alendronate as part of his treatment regimen, alongside his current pain medication. What advice should you provide to ensure he can take the alendronate safely and efficiently?
Your Answer:
Correct Answer: Take one tablet once a week
Explanation:How to Take Bisphosphonates for Osteoporosis
Bisphosphonates are commonly used in the treatment of osteoporosis. However, due to their poor absorption, they need to be taken according to strict instructions. Oral bisphosphonates such as alendronate or risedronate should be taken once a week or once daily at a lower dose. To ensure proper absorption, the tablet should be taken first thing in the morning, at least 30 minutes before any other medications or food. It should be taken with a glass of water and not with juice, tea, or coffee. After taking the tablet, it is important to remain upright for at least 30 minutes to allow the tablet to pass safely into the stomach.
While bisphosphonates are generally well-tolerated, they can cause some side effects. Gastrointestinal disturbance is common but usually mild. Alendronate can cause oesophagitis, which can be severe. On the other hand, risedronate is better tolerated when compared to alendronate. Some bisphosphonates can also cause bone pain. Patients who experience oesophagitis must stop their treatment and should be considered for an intravenous or intramuscular bisphosphonate or another agent. By following these instructions, patients can ensure that they are taking bisphosphonates safely and effectively for the treatment of osteoporosis.
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This question is part of the following fields:
- Pharmacology
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Question 47
Incorrect
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A 30-year-old man with end stage renal failure due to IgA nephropathy underwent a kidney transplant from a deceased brainstem donor and experienced successful primary graft function. After being discharged eight days post-surgery, his creatinine levels stabilized at 85 umol/l with regular clinic visits. However, at seven weeks post-transplant, his creatinine levels increased to 190 umol/l despite being asymptomatic. As a result, he was admitted for further evaluation. What would be your initial course of action?
Your Answer:
Correct Answer: Request a renal ultrasound scan
Explanation:The patient’s sudden rise in creatinine after stent removal suggests obstruction leading to hydronephrosis. This is the most likely diagnosis, but other possibilities include acute rejection, calcineurin toxicity, infection, or surgical complications. A renal ultrasound is needed to confirm the diagnosis and rule out other issues before a renal biopsy can be considered. Donor specific antibodies may also be tested, but a biopsy is still necessary for confirmation and treatment.
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This question is part of the following fields:
- Nephrology
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Question 48
Incorrect
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You are reviewing a physically fit 78 year old gentleman in the urology outpatient clinic. He initially presented to his GP with an episode of frank haematuria. Urinalysis revealed ongoing microscopic haematuria. Following referral to the urologist, a contrast MRI scan reveals a solitary low risk non-muscle invasive bladder cancer.
Which of the following would be the most appropriate treatment?Your Answer:
Correct Answer: Transurethral resection of bladder tumour (TURBT)
Explanation:Management Options for Low Risk Non-Muscle Invasive Bladder Tumours
When a patient is diagnosed with a low risk non-muscle invasive bladder tumour, the primary treatment option is surgical resection using the transurethral method. This procedure is likely to be curative, but a single dose of intravesical mitomycin C may be offered as adjunctive therapy. Routine follow-up and surveillance cystoscopies are necessary to monitor for recurrence.
A radical cystectomy and urostomy formation are reserved for patients with confirmed muscle invasive bladder tumours. Radiotherapy alone is only considered for those who are unfit for a radical cystectomy and have high risk or muscle invasive tumours. Palliative management is not appropriate for patients with curable tumours.
Intravesical bacillus Calmette-Guerin (BCG) is the treatment of choice for high-risk lesions, but it is not appropriate for low risk tumours. Therefore, surgical resection remains the primary management option for low risk non-muscle invasive bladder tumours.
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This question is part of the following fields:
- Urology
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Question 49
Incorrect
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A 40-year-old woman visits her primary care physician (PCP) complaining of depression. During the examination, the PCP notices a lump in the center of her neck and proceeds to conduct a cardiovascular and thyroid assessment. The patient displays signs of fatigue and has a subdued mood. Her heart rate is 68 bpm and her blood pressure is 112/82 mmHg, and there is paleness in the conjunctivae. The lump is symmetrical without skin alterations, moves upward when swallowing, and has a nodular consistency.
What is the most appropriate initial test to perform for diagnostic assistance?Your Answer:
Correct Answer: Thyroid function tests
Explanation:Thyroid Function Tests: Initial Investigation for Hypothyroidism
When a patient presents with symptoms and signs suggestive of hypothyroidism, the most appropriate initial test is thyroid function tests. However, if a neck swelling is also present, an ultrasound scan may be useful to assess for a goitre. If a cystic swelling is identified, a fine-needle aspirate sample may be taken for cytological analysis. A radio-isotope scan may also be performed to further assess thyroid pathology. While a full blood count is typically checked at the same time, it is not the best answer given the scenario.
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This question is part of the following fields:
- Endocrinology
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Question 50
Incorrect
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A 65-year-old man comes to the vascular clinic with a complaint of leg pain during exercise. He reports that the pain occurs in both calves, with the left side being slightly worse than the right. The pain starts after walking a few meters and subsides when he sits down. The patient has a medical history of type II diabetes mellitus, hypercholesterolemia, hypertension, and glaucoma. He has a 40 pack-year smoking history but quit smoking ten years ago when he was diagnosed with diabetes.
You conduct an Ankle: Brachial Pressure Index (ABPI) test on the man and find that his left leg ABPI is 0.8, while his right leg ABPI is 0.9. What would be your initial approach to managing this patient?Your Answer:
Correct Answer: Optimise control of diabetes, ensure he is compliant with his statin, supervised exercise programme for 3 month and prescribe 75 mg of clopidogrel daily
Explanation:Management of Intermittent Claudication in a Patient with Multiple Risk Factors
Intermittent claudication is a common symptom of arterial disease and can be caused by multiple risk factors, including smoking, diabetes, and hypercholesterolaemia. In managing a patient with intermittent claudication, it is important to first assess their ankle-brachial pressure index (ABPI) measurement to determine the severity of their arterial disease.
For patients with ABPI measurements between 0.6-0.9, first-line treatment involves managing risk factors and encouraging supervised exercise for three months. This patient should be optimally controlled for diabetes and compliant with their statin medication. Additionally, they should be prescribed 75 mg of clopidogrel daily to reduce the risk of blood clots.
A duplex USS arteriogram of both legs should be conducted to assess the extent of arterial disease. If necessary, a contrast-enhanced MRI may be used to plan revascularisation. However, surgery is typically only considered as a third-line treatment option.
It is important to note that analgesia is not the first-line treatment for intermittent claudication. Instead, addressing risk factors and enrolling in a supervised exercise programme for three months should be prioritised. Patients should be encouraged to exercise for two hours a week, to the maximum point of pain.
In summary, managing intermittent claudication in a patient with multiple risk factors involves a comprehensive approach that addresses risk factors, encourages exercise, and may involve further diagnostic testing and medication.
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This question is part of the following fields:
- Vascular
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