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Question 1
Incorrect
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As part of a palliative care attachment for final-year medical students, the consultant is discussing non-pharmacological options for managing pain symptoms. The focus is on herbal therapies that have been clinically proven to provide analgesic benefits in palliative care.
Your Answer: Clove oil
Correct Answer: Capsaicin
Explanation:Natural Remedies for Pain Relief: A Look at Capsaicin, Arnica, Cod Liver Oil, Clove Oil, and Echinacea
When it comes to managing pain, many people turn to natural remedies. Among these remedies are capsaicin, arnica, cod liver oil, clove oil, and echinacea. Capsaicin, which is found in chilli peppers, has been shown in several studies to be effective in treating neuropathic-type pain. Arnica, on the other hand, has been found to be no more effective than placebo for pain relief. Cod liver oil, when taken with NSAIDs, has not been shown to have a significant analgesic effect for osteoarthritis pain compared to placebo. Clove oil is commonly used for dental pain, gastrointestinal upset, nausea, and vomiting, but there is no published research on its pain relief properties. Finally, echinacea is often used for colds and respiratory infections, but there is no published research on its analgesic effects. While natural remedies can be a helpful addition to pain management, it’s important to do your research and consult with a healthcare professional before trying any new treatment.
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This question is part of the following fields:
- Pharmacology
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Question 2
Incorrect
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The following blood gas values were obtained on a different ventilated patient.
pH 7.4 (7.35-7.45)
pO2 95 mmHg (90-120)
Bicarbonate 22 mmol/L (23-26)
pCO2 30 mmHg (35-45)
What is the most appropriate explanation for these results?Your Answer: Respiratory acidosis
Correct Answer: Respiratory alkalosis
Explanation:Respiratory Alkalosis: Causes and Effects
Respiratory alkalosis is a condition that occurs when a person hyperventilates, leading to a decrease in the partial pressure of carbon dioxide (PaCO2) in the alveoli. This decrease in PaCO2 causes an increase in the ratio of bicarbonate concentration (HCO3) to PaCO2, which in turn increases the pH of the blood. As a result, the patient may appear to have an alkalosis with a high pH of 7.5, low pCO2, and normal PO2. However, the body tries to compensate for this by lowering the bicarbonate concentration. This condition can be caused by a variety of factors, including anxiety, fever, hypoxia, and pulmonary disease. It can also be a side effect of certain medications or a result of high altitude. Treatment for respiratory alkalosis depends on the underlying cause and may include addressing the underlying condition, breathing techniques, or medication.
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This question is part of the following fields:
- Anaesthetics & ITU
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Question 3
Correct
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A 79-year-old woman presents to her GP with complaints of worsening pain in her left knee for the past 6 months. The pain is more pronounced during the day and subsides at night or when she is at rest. She experiences increased stiffness in the morning, which takes around 15 minutes to resolve. She denies any joint problems in the past and is currently taking amlodipine for hypertension, which is well controlled. She has no known drug allergies. What is the most suitable initial management for this patient?
Your Answer: Paracetamol and topical NSAIDS
Explanation:It is likely that this woman is suffering from osteoarthritis in her right knee. Patients with osteoarthritis typically experience morning symptoms lasting less than 30 minutes. The recommended first-line pharmacological treatments for knee or hip arthritis are paracetamol and topical NSAIDs. Methotrexate is typically used for rheumatoid arthritis, while oral bisphosphonates are more appropriate for osteoporosis and not recommended as a first-line treatment for osteoarthritis. Following the analgesia ladder, patients should start with simple analgesia and increase dosage as needed. For those with hip or knee osteoarthritis, topical NSAIDs are preferred over oral NSAIDs.
The Role of Glucosamine in Osteoarthritis Management
Osteoarthritis (OA) is a common condition that affects the joints, causing pain and stiffness. The National Institute for Health and Care Excellence (NICE) published guidelines in 2014 on the management of OA, which includes non-pharmacological and pharmacological treatments. Glucosamine, a normal constituent of glycosaminoglycans in cartilage and synovial fluid, has been studied for its potential benefits in OA management.
Several double-blind randomized controlled trials (RCTs) have reported significant short-term symptomatic benefits of glucosamine in knee OA, including reduced joint space narrowing and improved pain scores. However, more recent studies have produced mixed results. The 2008 NICE guidelines do not recommend the use of glucosamine, and a 2008 Drug and Therapeutics Bulletin review advised against prescribing it on the NHS due to limited evidence of cost-effectiveness.
Despite the conflicting evidence, some patients may still choose to use glucosamine as a complementary therapy for OA management. It is important for healthcare professionals to discuss the potential benefits and risks of glucosamine with their patients and to consider individual patient preferences and circumstances.
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This question is part of the following fields:
- Musculoskeletal
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Question 4
Correct
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A 19-year-old male presents to the Emergency Department after consuming eight paracetamol tablets, four cans of strong cider and two mouthfuls of bleach in an attempt to end his life. He reports feeling extremely anxious and low in mood for the past week following a recent argument with his girlfriend. He believes he has no worth in society and thinks he is 'better off dead', hoping his girlfriend will understand how low he has been recently now that he has almost succeeded in ending his own life. He takes no regular medication and has a history of depression for which he sees his GP. He has no relevant family history. He has been to the emergency department with suicide attempts eight times in the last six months. He has no history of deliberate self-harm otherwise.
What is the necessary feature required for a diagnosis of a personality disorder?Your Answer: Over 18 years of age
Explanation:Undesirable personality traits that are pervasive are characteristic of personality disorders. These disorders cause long-term difficulties in interpersonal relationships and functioning in society. Diagnosis is only possible once a person’s personality has fully developed and their adaptive behaviours have become fixed, typically after the age of 18. However, borderline personality disorder may be diagnosed earlier if there is sufficient evidence that the patient has undergone puberty.
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 5
Correct
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A 42-year-old nurse takes an intentional overdose of paracetamol. A suicide note was discovered at the scene. Her only past health problem is long-standing, well-controlled epilepsy, for which she takes carbamazepine. She is believed to have taken approximately 30 tablets. When she reached hospital, blood samples were taken. From a collateral history, this is 6 h after ingestion.
Blood investigations:
Investigation Result Normal value
Haemoglobin 141 g/l 115–155 g/l
White cell count (WCC) 6.4 × 109/l 4–11 × 109/l
Platelets 321 × 109/l 150–400 × 109/l
Sodium (Na+) 134 mmol/l 135–145 mmol/l
Potassium (K+) 3.6 mmol/l 3.5–5.0 mmol/l
Urea 4.6 mmol/l 2.5–6.5 mmol/l
Creatinine 76 μmol/l 50–120 µmol/l
Bilirubin 12 μmol/l 2–17 µmol/l
Aspartate aminotransferase (AST) 45 IU/l 10–40 IU/l
Alanine aminotransferase (ALT) 86 IU/l 5–30 IU/l
GGT 74 IU/l 5–30 IU/l
Alkaline phosphatase 53 IU/l 30–130 IU/l
Paracetamol level 110 mg/l
What is the ideal treatment for this patient who is a 42-year-old nurse that has taken an intentional overdose of paracetamol?Your Answer: Give iv acetylcysteine
Explanation:Paracetamol overdose can lead to acute liver failure, with as little as 10-15 grams being enough to cause harm. It’s important to be aware of the presence of paracetamol in over-the-counter medications, as this can contribute to accidental overdose. If a single ingestion occurs, a paracetamol level should be checked after 4 hours to determine if treatment is necessary. In cases of staggered overdose or delayed presentation, treatment should be given without delay. Acetylcysteine is the preferred treatment, but hypersensitivity reactions may occur. The intravenous administration of saline and regular liver function tests are necessary, and activated charcoal is only effective within the first hour of ingestion. Methionine is no longer recommended as an alternative to acetylcysteine.
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This question is part of the following fields:
- Pharmacology
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Question 6
Incorrect
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A 35-year-old man has arrived at the eye emergency department following a blow to the face with a baseball bat. During the examination, it was observed that there is blood in the anterior chamber of his left eye. What is the primary risk associated with the presence of blood in the anterior chamber?
Your Answer: Ectopia lentis
Correct Answer: Glaucoma
Explanation:Blunt trauma to the eye that results in hyphema can lead to increased intraocular pressure, which is a high-risk situation for the patient.
The blockage of aqueous humour drainage caused by the presence of blood can result in glaucoma, which is a serious complication that requires close monitoring of intraocular pressure. While cataracts and ectopia lentis can be associated with blunt trauma, they are not typically associated with hyphema. Endophthalmitis, on the other hand, is usually caused by infection, post-surgery, or penetrating ocular trauma.
Ocular Trauma and Hyphema
Ocular trauma can lead to hyphema, which is the presence of blood in the anterior chamber of the eye. This condition requires immediate referral to an ophthalmic specialist for assessment and management. The main concern is the risk of raised intraocular pressure due to the blockage of the angle and trabecular meshwork with erythrocytes. Patients with high-risk cases are often admitted and require strict bed rest to prevent the disbursement of blood. Even isolated hyphema requires daily ophthalmic review and pressure checks initially as an outpatient.
In addition to hyphema, an assessment should also be made for orbital compartment syndrome, which can occur secondary to retrobulbar hemorrhage. This is a true ophthalmic emergency and requires urgent management. Symptoms of orbital compartment syndrome include eye pain and swelling, proptosis, ‘rock hard’ eyelids, and a relevant afferent pupillary defect.
To manage orbital compartment syndrome, urgent lateral canthotomy is necessary to decompress the orbit. This should be done before diagnostic imaging to prevent further damage. Proper management and prompt referral to an ophthalmic specialist can help prevent vision loss and other complications associated with ocular trauma and hyphema.
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This question is part of the following fields:
- Ophthalmology
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Question 7
Correct
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A 26-year-old woman weighing 70kg is brought to the emergency department with burns covering 25% of her body surface area.
Using the Parkland formula, calculate the volume of Hartmann's solution that is recommended to be given in the first 8 hours after the burn.Your Answer: 3.5L
Explanation:To calculate the amount of Hartmann’s solution to be administered in the first 24 hours after a burn, multiply the body surface area by the weight in kilograms. For example, if the body surface area is 4 and the weight is 70 kg, the calculation would be 4 x 25 x 70 = 7000 ml. Half of this amount should be given within the first 8 hours after the burn, which equals 3.5 liters.
Fluid Resuscitation for Burns
Fluid resuscitation is necessary for patients with burns that cover more than 15% of their total body area (10% for children). The primary goal of resuscitation is to prevent the burn from deepening. Most fluid is lost within the first 24 hours after injury, and during the first 8-12 hours, fluid shifts from the intravascular to the interstitial fluid compartments, which can compromise circulatory volume. However, fluid resuscitation causes more fluid to enter the interstitial compartment, especially colloid, which should be avoided in the first 8-24 hours. Protein loss also occurs.
The Parkland formula is used to calculate the total fluid requirement in 24 hours, which is given as 4 ml x (total burn surface area (%)) x (body weight (kg)). Fifty percent of the total fluid requirement is given in the first 8 hours, and the remaining 50% is given in the next 16 hours. The resuscitation endpoint is a urine output of 0.5-1.0 ml/kg/hour in adults, and the rate of fluid is increased to achieve this.
It is important to note that the starting point of resuscitation is the time of injury, and fluids already given should be deducted. After 24 hours, colloid infusion is begun at a rate of 0.5 ml x (total burn surface area (%)) x (body weight (kg)), and maintenance crystalloid (usually dextrose-saline) is continued at a rate of 1.5 ml x (burn area) x (body weight). Colloids used include albumin and FFP, and antioxidants such as vitamin C can be used to minimize oxidant-mediated contributions to the inflammatory cascade in burns. High tension electrical injuries and inhalation injuries require more fluid, and monitoring of packed cell volume, plasma sodium, base excess, and lactate is essential.
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This question is part of the following fields:
- Surgery
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Question 8
Correct
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A 52-year-old woman who is well known to the community mental health team is brought into the psychiatric hospital by her worried friends. She has not been eating more than a few mouthfuls of food a day for the last two weeks and refuses to speak more than a few words. She remains awake all night and rocks in her chair. She even refuses to drink more than a cupful of water per day despite numerous attempts by her friends, doctors and psychiatrists. She is refusing all oral medications. After a brief conversation, you feel she has capacity to make decisions. You learn she has a long history of depression which has been very severe at times.
Which of the following is the most appropriate treatment?Your Answer: Electroconvulsive therapy (ECT)
Explanation:The best treatment for a patient with severe depression who is refusing to eat or drink is electroconvulsive therapy (ECT). ECT involves 12 sessions and can be effective for patients with a high risk of suicide, psychotic features, catatonic stupor, food refusal, severe weight loss or dehydration, and those who have not responded to antidepressants. If the patient is unable to consent, their capacity must be assessed and treatment may be given under the Mental Health Act. NG tube insertion, emergency antidepressants, lithium, and cognitive behavioural therapy are not appropriate options for this acute situation.
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This question is part of the following fields:
- Psychiatry
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Question 9
Incorrect
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A 4-year-old girl is under your review for idiopathic constipation treatment with Movicol Paediatric Plain. Despite her mother increasing the dose, there has been no improvement. The child is in good health and abdominal examination is unremarkable. What would be the most suitable course of action to take next?
Your Answer: Stop Movicol Paediatric Plain and add lactulose + senna
Correct Answer: Add senna
Explanation:Understanding and Managing Constipation in Children
Constipation is a common problem in children, with the frequency of bowel movements decreasing as they age. The National Institute for Health and Care Excellence (NICE) has provided guidelines for the diagnosis and management of constipation in children. A diagnosis of constipation is suggested by two or more symptoms, including infrequent bowel movements, hard stools, and associated distress or pain. Most cases of constipation in children are idiopathic, but other causes such as dehydration, low-fiber diet, and medication use should be considered and excluded.
If a diagnosis of constipation is made, NICE recommends assessing for faecal impaction before starting treatment. Treatment for faecal impaction involves using polyethylene glycol 3350 + electrolytes (Movicol Paediatric Plain) as the first-line treatment, with the addition of a stimulant laxative if necessary. Maintenance therapy involves a similar regime, with adjustments to the starting dose and the addition of other laxatives if necessary.
It is important to note that dietary interventions alone are not recommended as first-line treatment, although ensuring adequate fluid and fiber intake is important. Regular toileting and non-punitive behavioral interventions should also be considered. For infants, extra water, gentle abdominal massage, and bicycling the legs can be helpful for constipation. If these measures are not effective, lactulose can be added.
In summary, constipation in children can be managed effectively with a combination of medication, dietary adjustments, and behavioral interventions. It is important to follow NICE guidelines and consider the individual needs of each child.
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This question is part of the following fields:
- Paediatrics
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Question 10
Incorrect
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A senior citizen is inquiring about the power of a statistical test.
Which statement best describes the power of a statistical test?Your Answer: The probability of a type 2 error
Correct Answer: The probability of not committing a type 2 error
Explanation:Understanding Type 1 and Type 2 Errors in Scientific Studies
When conducting a scientific study, it is important to determine whether there is a difference between two populations. A statistical test is used to analyze the results and determine if the difference is significant. However, there are two types of errors that can occur in this process.
Type 1 errors occur when the null hypothesis is rejected, in favor of the alternative hypothesis, even though the null hypothesis is true. This is also known as a false positive and is typically set at a 5% or 1% probability level.
Type 2 errors occur when the null hypothesis is accepted, in favor of the alternative hypothesis, even though the alternative hypothesis is true. This is also known as a false negative and is undesirable as it means that the study failed to detect a significant difference.
The power of a test is the probability of not making a type 2 error. It depends on the sample size, effect size, and statistical significance criterion used. The p-value is the lowest level of significance at which the null hypothesis is rejected. The smaller the p-value, the stronger the evidence is in favor of the alternative hypothesis.
Understanding these types of errors is crucial in scientific research as it helps researchers to interpret their results accurately and avoid making false conclusions.
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This question is part of the following fields:
- Statistics
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Question 11
Correct
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A woman who is 34 weeks pregnant is being assessed for her first pregnancy. Her baby is currently in a breech presentation. What is the best course of action for management?
Your Answer: Refer for external cephalic version
Explanation:Breech presentation occurs when the caudal end of the fetus is in the lower segment, and it is more common at 28 weeks than near term. Risk factors include uterine malformations, placenta praevia, and fetal abnormalities. Management options include spontaneous turning, external cephalic version (ECV), planned caesarean section, or vaginal delivery. The RCOG recommends informing women that planned caesarean section reduces perinatal mortality and early neonatal morbidity, but there is no evidence that the long-term health of babies is influenced by how they are born. ECV is contraindicated in certain cases, such as where caesarean delivery is required or there is an abnormal cardiotocography.
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This question is part of the following fields:
- Obstetrics
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Question 12
Correct
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A 65-year-old woman presents with a one-month history of non-specific malaise. She reports stiffness, particularly in the mornings, and difficulty lifting her arms to comb her hair. She experiences constant aching in her arms and shoulders and jaw pain when chewing. She has also lost 4 kg in weight and has a persistent headache. She smokes 10 cigarettes a day and drinks 10 units of alcohol per week. On examination, her temperature is 38°C, pulse is 84 beats/min, and BP is 125/80 mmHg. Investigations reveal abnormal blood results. What is the most appropriate next step in her evaluation?
Your Answer: Erythrocyte sedimentation rate
Explanation:Polymyalgia Rheumatica/Temporal arthritis: Symptoms and Importance of Diagnosis
Polymyalgia rheumatica/temporal arthritis is a condition that may present with predominantly polymyalgia symptoms such as proximal muscle pain, stiffness, or arthritis symptoms such as headaches, scalp tenderness, and jaw claudication. It is also common for the condition to have systemic involvement, including fever, malaise, and weight loss. One of the key indicators of this condition is a very high ESR.
The main reason for diagnosing and treating polymyalgia rheumatica/temporal arthritis is to prevent blindness. This condition can cause inflammation in the blood vessels that supply the eyes, leading to vision loss. Therefore, early diagnosis and treatment are crucial to prevent this complication.
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This question is part of the following fields:
- Rheumatology
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Question 13
Correct
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A 54-year-old man comes to his doctor for a regular check-up after experiencing a heart attack 6 weeks ago. During the examination, he appears unwell, sweaty, and clammy, and mentions feeling constantly feverish. His recent blood work reveals an elevated erythrocyte sedimentation rate (ESR) and anemia. What is the most probable post-heart attack complication that this man is experiencing?
Your Answer: Dressler’s syndrome
Explanation:Complications Following Myocardial Infarction
One of the complications that can occur 2-6 weeks after a myocardial infarction (MI) is Dressler’s syndrome. This autoimmune reaction happens as the myocardium heals and can present with pyrexia, pleuritic chest pain, and an elevated ESR. Pulmonary embolism is not suggested by this presentation. Another complication is myomalacia cordis, which occurs 3-14 days post-MI and involves the softening of dead muscles leading to rupture and death. Ventricular aneurysm may also form due to weakened myocardium, resulting in persistent ST elevation and left ventricular failure. Anticoagulation is necessary to prevent thrombus formation within the aneurysm and reduce the risk of stroke. Heart failure is unlikely to cause the above presentation and blood test results.
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This question is part of the following fields:
- Cardiology
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Question 14
Correct
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A 23-year-old man is brought to your clinic by his family for assessment. The patient recently graduated from university and has been struggling to adjust to post-graduate life. His family notes that he has always been a solitary person, preferring to spend his time in his room, playing video games and building models of his favourite characters. They had hoped that graduating from university would help him become more social. However, he has not made any new friends, and only his family is concerned about this. Instead of socializing, he continues to play video games alone in his room.
During the interview, he appears withdrawn and quiet. His emotional range is limited, and he does not show any clear signs of happiness or joy when discussing activities that he claims to enjoy. He denies experiencing any auditory or visual hallucinations and has no intention of harming himself or others. He claims that his sleep, appetite, energy, and concentration have not changed.
What is the most probable diagnosis for this patient?Your Answer: Schizoid personality disorder
Explanation:Understanding Schizoid Personality Disorder: Differentiating from Other Disorders
Personality disorders are characterized by enduring patterns of perception, processing, and engagement that become ingrained, inflexible, and maladaptive. Schizoid personality disorder is one of the disorders in Cluster A, also known as the weird cluster. Patients with this disorder are withdrawn loners with flat affects, preferring to work and play alone. However, they do not exhibit weird or magical thinking (schizotypal) or psychotic symptoms (schizophrenia, schizoaffective disorder).
It is important to differentiate schizoid personality disorder from other disorders such as avoidant personality disorder, where patients are distressed by their social isolation, and schizoaffective disorder and schizophrenia, which both involve psychotic symptoms. By understanding the unique characteristics of each disorder, clinicians can provide appropriate treatment and support for their patients.
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This question is part of the following fields:
- Psychiatry
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Question 15
Correct
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A 70-year-old man with a history of chronic obstructive pulmonary disease (COPD) is admitted with a one-day history of symptoms suggestive of severe pneumonia. Before admission, he had become increasingly confused. On examination, he is drowsy; his oxygen saturations were 90% on room air, blood pressure 142/75 mmHg and pulse 98 bpm, with coarse crackles in the right lung on auscultation. He is clinically euvolaemic. A chest X-ray reveals dense right lung consolidation. Computed tomography (CT) of the brain is normal. While in the Emergency Department, he has a tonic–clonic seizure.
Investigation Result Normal value
Sodium (Na+) 112 mmol/l 135–145 mmol/l
Potassium (K+) 3.9 mmol/l 3.5–5.0 mmol/l
Glucose 5.2 mmol/l 3.5–5.5 mmol/l
Urea 2.4 mmol/l 2.5–6.5 mmol/l
Creatinine 64 μmol/l 50–120 μmol/l
Plasma osmolarity 261 mOsmol/kg 280–295 mOsmol/kg
Thyroid-stimulating hormone (TSH) 3 µU/l 0.17–3.2 µU/l
Random cortisol 450 nmol/l
9 am: 140–500 nmol/l
Midnight: 50–300 nmol/l
Urine osmolarity 560 mOsmol/kg 300–900 mOsmol/kg
Urine sodium 55 mmol/l
What is the most appropriate management of this patient’s hyponatraemia?Your Answer: Intravenous (IV) 3% hypertonic saline
Explanation:Treatment Options for Severe Symptomatic Hyponatraemia Secondary to SIADH
Severe symptomatic hyponatraemia secondary to syndrome of inappropriate antidiuretic hormone secretion (SIADH) requires urgent treatment. The first-line treatment is a single infusion of 150 ml of 3% hypertonic saline or equivalent over 20 minutes, with serum sodium concentration measured after 20 minutes. The infusion should be repeated until a target of 5 mmol/l increase in serum sodium concentration is achieved, with a limit of 10 mmol/l in the first 24 hours and 8 mmol/l during every 24 hours thereafter until a serum sodium concentration of 130 mmol/l is reached. The serum sodium concentration should be checked after one, six, and 12 hours.
Fluid restriction of 800 ml/day is considered first line in moderate SIADH, but in severe cases, IV hypertonic saline is required urgently to raise the sodium concentration. Oral slow sodium tablets are second line after fluid restriction, but not suitable for severe symptomatic hyponatraemia. Demeclocycline is not recommended due to lack of evidence beyond modest efficacy and reports of acute kidney injury.
It is important to note that giving normal saline to a patient with SIADH will actually lower the serum sodium concentration even more, as sodium and water handling by the kidney are regulated independently. In SIADH, only water handling is out of balance from too much antidiuretic hormone, while sodium handling is intact. Therefore, administering normal saline will result in all of the sodium being excreted, but about half of the water being retained, worsening the hyponatraemia.
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This question is part of the following fields:
- Clinical Biochemistry
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Question 16
Incorrect
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A 46-year-old alcoholic is brought in after a fall. He has a deep cut on the side of his head and a witness tells the paramedics what happened. He opens his eyes when prompted by the nurses. He attempts to answer questions, but his speech is slurred and unintelligible. The patient pulls away from a trapezius pinch.
What is the appropriate Glasgow Coma Scale (GCS) score for this patient?Your Answer: E2V3M4
Correct Answer: E3V2M4
Explanation:Understanding the Glasgow Coma Scale
The Glasgow Coma Scale (GCS) is a standardized tool used to assess a patient’s level of consciousness following a head injury. It measures the best eye, verbal, and motor responses and assigns a total score. A fully conscious patient will score 15/15, while the lowest possible score is 3/15 (a score of 0 is not possible).
The GCS is calculated as follows: for eyes, a score of 4 is given if they open spontaneously, 3 if they open to speech, 2 if they open to pain, and 1 if they do not open. For verbal response, a score of 5 is given if the patient is oriented, 4 if they are confused, 3 if they use inappropriate words, 2 if they make inappropriate sounds, and 1 if there is no verbal response. For motor response, a score of 6 is given if the patient obeys commands, 5 if they localize pain, 4 if they withdraw from pain, 3 if they exhibit abnormal flexion, 2 if they exhibit abnormal extension, and 1 if there is no response.
If the GCS score is 8 or below, the patient will require airway protection as they will be unable to protect their own airway. This usually means intubation. It is important to use the GCS to objectively measure a patient’s conscious state and provide a common language between clinicians when discussing a patient with a head injury.
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This question is part of the following fields:
- Neurology
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Question 17
Incorrect
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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: Emotionally unstable personality disorder
Correct 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 18
Incorrect
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What is the definition of Nissl bodies?
Your Answer: Breakdown products of cell metabolism
Correct Answer: Granules of rough endoplasmic reticulum
Explanation:Nissl Bodies: Stacks of Rough Endoplasmic Reticulum
Nissl bodies are named after the German neurologist Franz Nissl and are found in neurones following a selective staining method known as Nissl staining. These bodies are composed of stacks of rough endoplasmic reticulum and are a major site of neurotransmitter synthesis, particularly acetylcholine, in the neurone. Therefore, the correct answer is that Nissl bodies are granules of rough endoplasmic reticulum. It is important to note that the other answer options are incorrect as they refer to entirely different organelles.
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This question is part of the following fields:
- Neurology
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Question 19
Incorrect
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A 65-year-old male who recently had cardiac surgery is experiencing symptoms of fever, fatigue, and weight loss. After being discharged following a successful mitral valve replacement 6 months ago, an urgent echocardiogram is conducted and reveals a new valvular lesion, leading to a diagnosis of endocarditis. To confirm the diagnosis, three sets of blood cultures are collected. What is the most probable organism responsible for the patient's condition?
Your Answer: Streptococcus viridans
Correct Answer: Staphylococcus aureus
Explanation:The most common cause of infective endocarditis is Staphylococcus aureus, especially in acute presentations and among intravenous drug users. However, if the patient has undergone valve replacement surgery more than 2 months ago, the spectrum of organisms causing endocarditis returns to normal, making Staphylococcus epidermidis less likely. While Streptococcus bovis can also cause endocarditis, it is not as common as Staphylococcus aureus and is associated with colon cancer. Staphylococcus epidermidis is the most common cause of endocarditis within 2 months post-valvular surgery. On the other hand, Streptococcus mitis, a viridans streptococcus found in the mouth, is associated with endocarditis following dental procedures or in patients with poor dental hygiene.
Aetiology of Infective Endocarditis
Infective endocarditis is a condition that affects patients with previously normal valves, rheumatic valve disease, prosthetic valves, congenital heart defects, intravenous drug users, and those who have recently undergone piercings. The strongest risk factor for developing infective endocarditis is a previous episode of the condition. The mitral valve is the most commonly affected valve.
The most common cause of infective endocarditis is Staphylococcus aureus, particularly in acute presentations and intravenous drug users. Historically, Streptococcus viridans was the most common cause, but this is no longer the case except in developing countries. Streptococcus mitis and Streptococcus sanguinis are the two most notable viridans streptococci, commonly found in the mouth and dental plaque. Coagulase-negative Staphylococci such as Staphylococcus epidermidis are the most common cause of endocarditis in patients following prosthetic valve surgery.
Streptococcus bovis is associated with colorectal cancer, with the subtype Streptococcus gallolyticus being most linked to the condition. Non-infective causes of endocarditis include systemic lupus erythematosus and malignancy. Culture negative causes may be due to prior antibiotic therapy or infections caused by Coxiella burnetii, Bartonella, Brucella, or HACEK organisms (Haemophilus, Actinobacillus, Cardiobacterium, Eikenella, Kingella).
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This question is part of the following fields:
- Medicine
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Question 20
Incorrect
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A 25-year-old veterinary student is being evaluated for possible Addison's disease due to symptoms of weight loss, hypotension, and fatigue. As part of the diagnostic process, the patient undergoes testing to measure cortisol levels before and after receiving synthetic adrenocorticotropic hormone (ACTH) injection (short-synacthen test). What is a true statement regarding cortisol in this scenario?
Your Answer: It lowers blood glucose
Correct Answer: It has a peak hormonal concentration in the morning
Explanation:Misconceptions about Cortisol: Clarifying the Facts
Cortisol is a hormone that has been the subject of many misconceptions. Here are some clarifications to set the record straight:
1. Peak Hormonal Concentration: Cortisol has a diurnal variation and peaks in the morning upon waking up. Its lowest level is around midnight.
2. Protein or Steroid: Cortisol is a steroid hormone, not a protein.
3. Blood Glucose: Cortisol increases blood glucose levels via various pathways, contrary to the belief that it lowers blood glucose.
4. Anabolic or Catabolic: Cortisol is a catabolic hormone that causes a breakdown of larger molecules to smaller molecules.
5. Stimulated by Renin or ACTH: Cortisol is stimulated by adrenocorticotropic hormone (ACTH) released from the anterior pituitary, not renin.
By understanding the true nature of cortisol, we can better appreciate its role in our bodies and how it affects our health.
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This question is part of the following fields:
- Endocrinology
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Question 21
Incorrect
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As a junior doctor in the emergency department, you are asked by a senior doctor to examine a child with a persistent cough. However, they caution you against examining the child's throat as it may lead to airway obstruction. What could be the possible diagnosis for this case?
Your Answer: Whooping cough
Correct Answer: Croup
Explanation:It is not recommended to conduct a throat examination on a patient with croup as it may lead to airway obstruction. This risk is higher in cases of acute epiglottitis, which is a less common condition. However, for the other conditions, throat examination is not contraindicated.
Understanding Croup: A Respiratory Infection in Infants and Toddlers
Croup is a type of upper respiratory tract infection that commonly affects infants and toddlers. It is characterized by a barking cough, fever, and coryzal symptoms, and is caused by a combination of laryngeal oedema and secretions. Parainfluenza viruses are the most common cause of croup. The condition typically peaks between 6 months and 3 years of age, and is more prevalent during the autumn season.
The severity of croup can be graded based on the presence of symptoms such as stridor, cough, and respiratory distress. Mild cases may only have occasional barking cough and no audible stridor at rest, while severe cases may have frequent barking cough, prominent inspiratory stridor at rest, and marked sternal wall retractions. Children with moderate or severe croup, those under 6 months of age, or those with known upper airway abnormalities should be admitted to the hospital.
Diagnosis of croup is usually made based on clinical presentation, but a chest x-ray may show subglottic narrowing, commonly referred to as the steeple sign. Treatment for croup typically involves a single dose of oral dexamethasone or prednisolone, regardless of severity. In emergency situations, high-flow oxygen and nebulized adrenaline may be necessary.
Understanding croup is important for parents and healthcare providers alike, as prompt recognition and treatment can help prevent complications and improve outcomes for affected children.
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This question is part of the following fields:
- Paediatrics
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Question 22
Correct
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A 50-year-old man with a history of haemochromatosis complains of a painful and swollen right knee. An x-ray reveals no fracture but significant chondrocalcinosis. Assuming the diagnosis is pseudogout, what is the most probable finding in the joint fluid?
Your Answer: Positively birefringent rhomboid shaped crystals
Explanation:Pseudogout is characterized by rhomboid-shaped crystals that exhibit weakly positive birefringence.
Pseudogout, also known as acute calcium pyrophosphate crystal deposition disease, is a type of microcrystal synovitis that occurs when calcium pyrophosphate dihydrate crystals are deposited in the synovium. This condition is more common in older individuals, but those under 60 years of age may develop it if they have underlying risk factors such as haemochromatosis, hyperparathyroidism, low magnesium or phosphate levels, acromegaly, or Wilson’s disease. The knee, wrist, and shoulders are the most commonly affected joints, and joint aspiration may reveal weakly-positively birefringent rhomboid-shaped crystals. X-rays may show chondrocalcinosis, which appears as linear calcifications of the meniscus and articular cartilage in the knee. Treatment involves joint fluid aspiration to rule out septic arthritis, as well as the use of NSAIDs or steroids, as with gout.
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This question is part of the following fields:
- Musculoskeletal
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Question 23
Incorrect
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A 36-year-old Afro-Caribbean woman presents to the Emergency Department complaining of shortness of breath, fever and a productive cough. She has suffered multiple severe infections over the past five years; however, she has no other past medical history.
On examination, you note intercostal recessions and the use of accessory muscles of respiration. She has significant coarse crepitations in her right lower lobe.
You take some basic observations, which are as follows:
Temperature: 39.8 °C
Heart rate: 120 bpm
Respiratory rate: 26 breaths/min
Blood pressure: 150/94 mmHg (lying) 146/90 mmHg (standing)
Oxygen saturation: 86% on room air
Her initial investigation findings are as follows:
Investigation Result Normal value
White cell count (WCC) 14.4 × 109/l 4–11. × 109/l
Neutrophils 12800 × 106/l 3000–5800 × 106/l
Lymphocytes 1400 × 106/l 1500–3000 × 106/l
Haemoglobin (Hb) 110 g/dl 115–155 g/dl
Mean corpuscular volume (MCV) 94 fl 76–98 fl
Platelets 360 × 109/l 150–400 × 109/l
Her chest X-ray shows significant consolidation in the right lower lobe.
A blood film comes back and shows the following: sickled erythrocytes and Howell–Jolly bodies.
A sputum culture is grown and shows Streptococcus pneumoniae, and the patient’s pneumonia is managed successfully with antibiotics and IV fluid therapy.
What condition is predisposing this patient to severe infections?Your Answer: Acute lymphoblastic leukaemia (ALL)
Correct Answer: Splenic dysfunction
Explanation:The patient has sickle cell disease and a history of recurrent infections, indicating long-term damage to the spleen. The blood film shows signs of splenic disruption, such as Howell-Jolly bodies, and a low lymphocyte level, which may be due to reduced lymphocyte storage capacity in the shrunken spleen. This is different from a splenic sequestration crisis, which is an acute pediatric emergency. The current admission may be an acute chest pain crisis, but it is not the cause of the recurrent infections. The patient does not have acute lymphoblastic leukemia, as there is no evidence of blastic cells or pancytopenia. Advanced HIV is a possibility, but the blood film suggests sickle cell disease. While the patient is at risk of an aplastic crisis, it typically occurs in younger patients after a parvovirus B19 infection, which is not present in this case.
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This question is part of the following fields:
- Haematology
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Question 24
Incorrect
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A 30-year-old woman presents with complaints of irregular and unpredictable uterine bleeding over the past 6 months. The bleeding varies in amount, duration, and timing. She reports recent weight gain despite a low appetite and generalized weakness. Her work performance has suffered due to fatigue and poor concentration. She has no significant past medical history and takes bulk-forming laxatives for constipation. She is married, lives with her husband, and has one child. On pelvic examination, the vagina and cervix appear normal, and there is no adnexal mass or tenderness. What is the most likely diagnosis?
Your Answer: Endometrial polyps
Correct Answer: Hypothyroidism
Explanation:Differential diagnosis of abnormal uterine bleeding in a young woman
Abnormal uterine bleeding is a common gynecological complaint that can have various causes. In a young woman presenting with this symptom, the differential diagnosis includes hypothyroidism, submucosal leiomyoma, endometrial hyperplasia and cancer, cervical cancer, and endometrial polyps.
Hypothyroidism is a likely diagnosis if the patient also complains of weight gain, constipation, fatigue, poor concentration, and muscle weakness. Hypothyroidism can affect reproductive functioning and cause irregular and unpredictable uterine bleeding.
Submucosal leiomyoma, although rare in young women, can cause metrorrhagia or menorrhagia. However, it does not explain systemic symptoms.
Endometrial hyperplasia and cancer are more common in postmenopausal women, but can also occur in young women with risk factors such as obesity, hypertension, diabetes mellitus, nulliparity, tamoxifen use, late menopause, and chronic anovulation. Endometrial hyperplasia can lead to abnormal uterine bleeding and uterine enlargement.
Cervical cancer is associated with human papillomavirus infection and other risk factors such as smoking, early intercourse, multiple sexual partners, use of oral contraceptives, and immunosuppression. Early cervical cancer may not cause symptoms, but can present with vaginal spotting, post-coital bleeding, dyspareunia, and vaginal discharge.
Endometrial polyps are more common around the menopausal age and can cause menorrhagia, metrorrhagia, and menometrorrhagia. Although most polyps are benign, some may contain neoplastic foci.
In summary, a thorough evaluation of a young woman with abnormal uterine bleeding should include a thyroid function test and consideration of other potential causes such as leiomyoma, endometrial hyperplasia and cancer, cervical cancer, and endometrial polyps. Treatment depends on the underlying diagnosis and may include hormonal therapy, surgery, or other interventions.
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This question is part of the following fields:
- Gynaecology
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Question 25
Incorrect
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A 35-year-old man of African origin visits his doctor with a complaint of experiencing extremely cold and white fingers at random times of the day, especially in winter and outdoors. During the examination, the doctor observes small white deposits on his arms, a large number of spider naevi on his cheeks, and thickened skin on the top of his hands, making it difficult for him to straighten out his fingers. Currently, the color and temperature of his fingers are normal. Based on the probable diagnosis, which of the following symptoms is most likely to be present?
Your Answer: Dilated capillary loops
Correct Answer: Dysphagia
Explanation:The patient exhibits all the symptoms of CREST syndrome except for dysphagia caused by oesophageal dysmotility. These symptoms include calcinosis (white deposits), Raynaud’s phenomenon (cold, white fingertips triggered by cold weather), sclerodactyly (thickened skin on top of hands and inability to straighten fingers), and telangiectasia (excessive number of spider naevi). Gottron’s papules and dilated capillary loops are characteristic of dermatomyositis, while limited scleroderma does not typically involve internal organs, making glomerulonephritis unlikely. Although Sjogren’s syndrome can overlap with other connective tissue diseases, the patient’s lack of dysphagia makes this diagnosis less likely than CREST syndrome.
Understanding Systemic Sclerosis
Systemic sclerosis is a condition that affects the skin and other connective tissues, but its cause is unknown. It is more common in females, with three patterns of the disease. Limited cutaneous systemic sclerosis is characterised by Raynaud’s as the first sign, affecting the face and distal limbs, and associated with anti-centromere antibodies. CREST syndrome is a subtype of limited systemic sclerosis that includes Calcinosis, Raynaud’s phenomenon, oEsophageal dysmotility, Sclerodactyly, and Telangiectasia. Diffuse cutaneous systemic sclerosis affects the trunk and proximal limbs, associated with scl-70 antibodies, and has a poor prognosis. Respiratory involvement is the most common cause of death, with interstitial lung disease and pulmonary arterial hypertension being the primary complications. Renal disease and hypertension are also possible complications, and patients with renal disease should be started on an ACE inhibitor. Scleroderma without internal organ involvement is characterised by tightening and fibrosis of the skin, manifesting as plaques or linear. Antibodies such as ANA, RF, anti-scl-70, and anti-centromere are associated with different types of systemic sclerosis.
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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 6-month-old infant is scheduled for routine immunisations. All recommended immunisations have been administered so far. What vaccinations should be given at this point?
Your Answer: MMR + PCV
Correct Answer: Hib/Men C + MMR + PCV + Men B
Explanation:The UK immunisation schedule recommends certain vaccines at different ages. At birth, the BCG vaccine is given if the baby is at risk of tuberculosis. At 2, 3, and 4 months, the ‘6-1 vaccine’ (diphtheria, tetanus, whooping cough, polio, Hib and hepatitis B) and oral rotavirus vaccine are given, along with Men B and PCV at certain intervals. At 12-13 months, the Hib/Men C, MMR, and PCV vaccines are given, along with Men B. At 3-4 years, the ‘4-in-1 preschool booster’ (diphtheria, tetanus, whooping cough and polio) and MMR vaccines are given. At 12-13 years, the HPV vaccination is given, and at 13-18 years, the ‘3-in-1 teenage booster’ (tetanus, diphtheria and polio) and Men ACWY vaccines are given. Additionally, the flu vaccine is recommended annually for children aged 2-8 years.
It is important to note that the meningitis ACWY vaccine has replaced meningitis C for 13-18 year-olds due to an increased incidence of meningitis W disease in recent years. The ACWY vaccine will also be offered to new students (up to the age of 25 years) at university. GP practices will automatically send letters inviting 17-and 18-year-olds in school year 13 to have the Men ACWY vaccine. Students going to university or college for the first time as freshers, including overseas and mature students up to the age of 25, should contact their GP to have the Men ACWY vaccine, ideally before the start of the academic year.
It is worth noting that the Men C vaccine used to be given at 3 months but has now been discontinued. This is because the success of the Men C vaccination programme means there are almost no cases of Men C disease in babies or young children in the UK any longer. All children will continue to be offered the Hib/Men C vaccine at one year of age, and the Men ACWY vaccine at 14 years of age to provide protection across all age groups.
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This question is part of the following fields:
- Paediatrics
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Question 27
Incorrect
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A 65-year-old woman with type 2 diabetes mellitus presents with complaints of bumping into things since the morning. She is currently taking metformin, simvastatin and aspirin. She reports noticing multiple 'dark spots' over the vision in her right eye over the past two days. Upon examination, it is found that she has lost all vision in her right eye. The red reflex on the right side is difficult to elicit and the retina on the right side cannot be visualised during fundoscopy. However, examination of the left fundus reveals changes consistent with pre-proliferative diabetic retinopathy. What is the most likely diagnosis?
Your Answer: Retinal detachment
Correct Answer: Vitreous haemorrhage
Explanation:Based on the patient’s medical history of diabetes and aspirin use, along with their symptoms of complete vision loss in one eye and inability to see the retina, it is likely that they are experiencing vitreous haemorrhage. To distinguish between this and retinal detachment, please refer to the table provided below.
Sudden loss of vision can be a scary symptom for patients, as it may indicate a serious issue or only be temporary. Transient monocular visual loss (TMVL) is a term used to describe a sudden, brief loss of vision that lasts less than 24 hours. The most common causes of sudden, painless loss of vision include ischaemic/vascular issues (such as thrombosis, embolism, and temporal arthritis), vitreous haemorrhage, retinal detachment, and retinal migraine.
Ischaemic/vascular issues, also known as ‘amaurosis fugax’, have a wide range of potential causes, including large artery disease, small artery occlusive disease, venous disease, and hypoperfusion. Altitudinal field defects are often seen, and ischaemic optic neuropathy can occur due to occlusion of the short posterior ciliary arteries. Central retinal vein occlusion is more common than arterial occlusion and can be caused by glaucoma, polycythaemia, or hypertension. Central retinal artery occlusion is typically caused by thromboembolism or arthritis and may present with an afferent pupillary defect and a ‘cherry red’ spot on a pale retina.
Vitreous haemorrhage can be caused by diabetes, bleeding disorders, or anticoagulants and may present with sudden visual loss and dark spots. Retinal detachment may be preceded by flashes of light or floaters, which are also common in posterior vitreous detachment. Differentiating between posterior vitreous detachment, retinal detachment, and vitreous haemorrhage can be challenging, but each has distinct features such as photopsia and floaters for posterior vitreous detachment, a dense shadow that progresses towards central vision for retinal detachment, and large bleeds causing sudden visual loss for vitreous haemorrhage.
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This question is part of the following fields:
- Ophthalmology
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Question 28
Incorrect
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An 80-year-old female visits her doctor with a vesicular rash on the right-side of her face and tip of her nose, and is diagnosed with herpes zoster ophthalmicus (HZO). What is the most probable complication for this patient?
Your Answer: Central retinal vein occlusion
Correct Answer: Anterior uveitis
Explanation:Hutchinson’s sign, which is characterized by vesicles that spread to the tip of the nose, is a strong indicator of shingles-related ocular involvement. As a result, the patient is at risk of developing anterior uveitis.
Treatment for herpes zoster ophthalmicus typically involves the use of antivirals and/or steroids. Given the likelihood of ocular involvement in this case, an urgent ophthalmology review is necessary.Herpes Zoster Ophthalmicus: Symptoms, Treatment, and Complications
Herpes zoster ophthalmicus (HZO) is a condition that occurs when the varicella-zoster virus reactivates in the area supplied by the ophthalmic division of the trigeminal nerve. It is responsible for approximately 10% of shingles cases. The main symptom of HZO is a vesicular rash around the eye, which may or may not involve the eye itself. Hutchinson’s sign, a rash on the tip or side of the nose, is a strong indicator of nasociliary involvement and increases the risk of ocular involvement.
Treatment for HZO involves oral antiviral medication for 7-10 days, ideally started within 72 hours of symptom onset. Intravenous antivirals may be necessary for severe infections or immunocompromised patients. Topical antiviral treatment is not recommended for HZO, but topical corticosteroids may be used to treat any secondary inflammation of the eye. Ocular involvement requires urgent ophthalmology review to prevent complications such as conjunctivitis, keratitis, episcleritis, anterior uveitis, ptosis, and post-herpetic neuralgia.
In summary, HZO is a condition caused by the reactivation of the varicella-zoster virus in the ophthalmic division of the trigeminal nerve. It presents with a vesicular rash around the eye and may involve the eye itself. Treatment involves oral antiviral medication and urgent ophthalmology review is necessary for ocular involvement. Complications of HZO include various eye conditions, ptosis, and post-herpetic neuralgia.
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This question is part of the following fields:
- Ophthalmology
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Question 29
Incorrect
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A 29-year-old primiparous woman who is 20 weeks pregnant comes in for a consultation after her foetal anomaly scan revealed polyhydramnios and a midline sac containing bowel. She has no significant medical history and is not taking any regular medications. She had planned for a home birth and is now concerned about how this condition will affect her delivery.
What is the best course of action for managing this condition?Your Answer: Plan for induction of labour at 37 weeks
Correct Answer: Schedule an elective caesarean section
Explanation:If a foetus is diagnosed with exomphalos before birth, it is recommended to schedule and perform a caesarean section at term to reduce the risk of sac rupture, infection, and atresia. While a ward delivery provides access to theatres, specific surgical planning is necessary to minimize complications. Instrumental delivery in theatre does not decrease the risk of sac rupture. It is important to explain to the mother why hospital delivery is necessary and the risks associated with a home birth. Induction of labour at 37 weeks is not advisable as it increases the risk of complications during vaginal delivery.
Gastroschisis and exomphalos are both types of congenital visceral malformations. Gastroschisis refers to a defect in the anterior abdominal wall located just beside the umbilical cord. In contrast, exomphalos, also known as omphalocoele, involves the protrusion of abdominal contents through the anterior abdominal wall, which are covered by an amniotic sac formed by amniotic membrane and peritoneum.
When it comes to managing gastroschisis, vaginal delivery may be attempted, but newborns should be taken to the operating theatre as soon as possible after delivery, ideally within four hours. As for exomphalos, a caesarean section is recommended to reduce the risk of sac rupture. In cases where primary closure is difficult due to lack of space or high intra-abdominal pressure, a staged repair may be undertaken. This involves allowing the sac to granulate and epithelialise over several weeks or months, forming a shell. As the infant grows, the sac contents will eventually fit within the abdominal cavity, at which point the shell can be removed and the abdomen closed.
Overall, both gastroschisis and exomphalos require careful management to ensure the best possible outcome for the newborn. By understanding the differences between these two conditions and the appropriate steps to take, healthcare professionals can provide effective care and support to both the infant and their family.
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This question is part of the following fields:
- Paediatrics
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Question 30
Incorrect
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A 25-year-old man has just been diagnosed with schizophrenia. His family is concerned about the long-term outlook of the illness. What factor is linked to the poorest prognosis for poorly managed schizophrenia?
Your Answer: Stressful event which precipitated illness
Correct Answer: Gradual onset
Explanation:Schizophrenia with a gradual onset is indicative of a poor prognosis, whereas the other options suggest a better outcome. Although some studies have linked high intelligence with a higher risk of suicide, generally, individuals with higher intelligence have a more favorable prognosis for 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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