-
Question 1
Incorrect
-
A 16-year-old known type 1 diabetic presents with vomiting, abdominal pain, and drowsiness. During the examination, you detect a distinct smell of pear drops on her breath. Despite the severity of her condition, she insists on leaving to attend a friend's birthday party. After discussing the potential consequences of leaving, she appears to comprehend the risks and can articulate her decision. However, her parents believe she should remain for treatment. What course of action should you take?
Your Answer: Accept the patient's decision to leave
Correct Answer: Admit the patient for treatment, seeking legal advice if she continues to refuse treatment
Explanation:This person is below the age of 16 but is considered to have the ability to make decisions. As a result, they have the right to consent to treatment without the need for parental approval. However, if they choose to decline treatment, their best interests must be taken into account. In this case, the patient is suffering from diabetic ketoacidosis, and leaving without treatment would likely result in death. Therefore, it would be reasonable to conclude that it is in their best interests to receive treatment.
According to the General Medical Council’s ethical guidelines, parents cannot override the competent consent of a young person when it comes to treatment that is deemed to be in their best interests. However, if a child lacks the capacity to consent, parental consent can be relied upon. In Scotland, parents are unable to authorize treatment that a competent young person has refused. In England, Wales, and Northern Ireland, the laws regarding parents overriding a young person’s competent refusal are complex.
When a young person refuses treatment, the harm to their rights must be carefully weighed against the benefits of treatment to make decisions that are in their best interests. This is outlined in paragraphs 30-33 of the GMC’s ethical guidance for individuals aged 0-18 years.
Understanding Consent in Children
The issue of consent in children can be complex and confusing. However, there are some general guidelines to follow. If a patient is under 16 years old, they may be able to consent to treatment if they are deemed competent. This is determined by the Fraser guidelines, which were previously known as Gillick competence. However, even if a child is competent, they cannot refuse treatment that is deemed to be in their best interest.
For patients between the ages of 16 and 18, it is generally assumed that they are competent to give consent to treatment. Patients who are 18 years or older can consent to or refuse treatment.
When it comes to providing contraceptives to patients under 16 years old, the Fraser Guidelines outline specific requirements that must be met. These include ensuring that the young person understands the advice given by the healthcare professional, cannot be persuaded to inform their parents, is likely to engage in sexual activity with or without treatment, and will suffer physical or mental health consequences without treatment. Ultimately, the young person’s best interests must be taken into account when deciding whether to provide contraceptive advice or treatment, with or without parental consent.
In summary, understanding consent in children requires careful consideration of age, competence, and best interests. The Fraser Guidelines provide a useful framework for healthcare professionals to follow when providing treatment and advice to young patients.
-
This question is part of the following fields:
- Paediatrics
-
-
Question 2
Incorrect
-
A 67-year-old male presents to the emergency department with symptoms of nausea, diarrhoea, confusion, and blurred vision. He has a medical history of osteoarthritis, heart failure, and atrial fibrillation. His current medications include Adcal D3, Amiodarone, Bisoprolol, Digoxin, Losartan, and Paracetamol. The patient was recently started on amiodarone by his general practitioner. What is the probable cause of his current symptoms?
Your Answer: Polypharmacy syndrome
Correct Answer: Digoxin toxicity
Explanation:When starting a patient on amiodarone who is already taking digoxin, it is important to reduce the dose to avoid the risk of digoxin toxicity. Amiodarone is a type of medication used to treat various heart conditions, such as ventricular tachycardia and atrial fibrillation. However, it can also cause side effects such as nausea, constipation, lethargy, tremors, and even serious conditions like interstitial pneumonitis, optic neuropathy, and corneal deposits. Additionally, amiodarone can inhibit the action of the cytochrome P450 enzyme, which can reduce the clearance of other drugs like ciclosporin, flecainide, sildenafil, simvastatin, theophylline, and warfarin.
Understanding Digoxin and Its Toxicity
Digoxin is a medication used for rate control in atrial fibrillation and for improving symptoms in heart failure patients. It works by decreasing conduction through the atrioventricular node and increasing the force of cardiac muscle contraction. However, it has a narrow therapeutic index and requires monitoring for toxicity.
Toxicity may occur even when the digoxin concentration is within the therapeutic range. Symptoms of toxicity include lethargy, nausea, vomiting, anorexia, confusion, yellow-green vision, arrhythmias, and gynaecomastia. Hypokalaemia is a classic precipitating factor, as it allows digoxin to more easily bind to the ATPase pump and increase its inhibitory effects. Other factors that may contribute to toxicity include increasing age, renal failure, myocardial ischaemia, electrolyte imbalances, hypoalbuminaemia, hypothermia, hypothyroidism, and certain medications such as amiodarone, quinidine, and verapamil.
Management of digoxin toxicity involves the use of Digibind, correction of arrhythmias, and monitoring of potassium levels. It is important to recognize the potential for toxicity and monitor patients accordingly to prevent adverse outcomes.
-
This question is part of the following fields:
- Pharmacology
-
-
Question 3
Correct
-
A 50-year-old woman came to the skin clinic with flaccid blisters on the inside of her mouth and the front of her chest, with some areas appearing red and weeping. The dermatologist performed a skin biopsy, which revealed a superficial intra-epidermal split just above the basal layer with acantholysis. What is the most probable diagnosis?
Your Answer: Pemphigus vulgaris
Explanation:Skin Disorders: Pemphigus Vulgaris, Bullous Pemphigoid, Dermatitis Herpetiformis, Epidermolysis Bullosa, and Tuberous Sclerosis
Skin disorders can manifest in various ways, including blistering and erosions on the skin and/or mucous membranes. Pemphigus vulgaris is an autoimmune disease that causes blistering and erosions on the skin and mucous membranes, with IgG autoantibodies to desmoglein 3 being a key characteristic. In contrast, bullous pemphigoid involves sub-epidermal splitting and tense blisters that are less easily ruptured. Dermatitis herpetiformis is characterised by intensely pruritic blisters on specific areas of the body, often associated with coeliac disease. Epidermolysis bullosa is a rare inherited disorder that causes fragile skin, while tuberous sclerosis is not associated with blistering. Diagnosis and treatment vary depending on the specific disorder.
-
This question is part of the following fields:
- Dermatology
-
-
Question 4
Correct
-
An adolescent is seeking genetic counselling. His mother has phenylketonuria (PKU), which is inherited as autosomal recessive. He has a brother with PKU.
What is the likelihood that he carries the disease?Your Answer: 100%
Explanation:Understanding Phenylketonuria (PKU) Inheritance and Carrier Probability
Phenylketonuria (PKU) is an autosomal recessive inherited condition that affects the body’s ability to break down phenylalanine. Inheritance of PKU follows a specific pattern, where the affected allele must be inherited from both parents for the disease to manifest.
If a person’s mother has PKU, she must be homozygous for the affected allele. If the person’s brother also has PKU, their father must be at least a carrier (heterozygous). Therefore, if the person seeking genetic counseling does not have PKU, there is a 100% certainty that they are a carrier.
The probability of a baby born to this family having PKU is 50%, and the probability of them being a carrier is also 50%. However, as an asymptomatic teenager seeking counseling, the odds of being a carrier are 100%.
PKU is an inborn error of metabolism that can lead to learning disabilities if not detected and treated early. It is tested for shortly after birth using the Guthrie test and can be managed by removing phenylalanine from the diet.
Understanding the inheritance pattern and carrier probability of PKU is crucial for genetic counseling and early detection and management of the condition.
-
This question is part of the following fields:
- Genetics
-
-
Question 5
Correct
-
A 75-year-old man of Brazilian descent is referred for an outpatient DEXA scan by his general practitioner. He has obesity and chronic kidney disease (for which he takes ramipril). He has never smoked and rarely drinks alcohol. What risk factor predisposes him to this condition? His DEXA scan now shows a T-score of -3 and he is started on alendronic acid.
Your Answer: Chronic kidney disease
Explanation:Chronic kidney disease (CKD) increases the risk of developing osteoporosis, a condition characterized by a T score < -2.5 on DEXA scan. CKD affects the metabolic pathways involved in vitamin D synthesis and serum phosphate levels, leading to increased parathyroid hormone (PTH) secretion and osteoclast activation, which contribute to the development of osteoporosis. Ethnicity, including being Brazilian, does not affect the risk of developing osteoporosis. However, being Asian or Caucasian is associated with a higher risk, although the reasons for this are not fully understood. Smoking is a significant risk factor for osteoporosis, and non-smokers are relatively protected against it. Smoking affects bone metabolism by limiting oxygen supply to the bones, slowing down osteoblast production, and reducing calcium absorption. Contrary to popular belief, obesity is not a risk factor for osteoporosis. In fact, a low body mass index is associated with a higher risk. This is because extra weight stresses the bone, which stimulates the formation of new bone tissue. Additionally, adipose tissue is a source of estrogen synthesis, which helps prevent bone density loss. Understanding the Causes of Osteoporosis Osteoporosis is a condition that affects the bones, making them weak and brittle. It is more common in women and older adults, with the prevalence increasing significantly in women over the age of 80. However, there are many other risk factors and secondary causes of osteoporosis that should be considered. Some of the most important risk factors include a history of glucocorticoid use, rheumatoid arthritis, alcohol excess, parental hip fracture, low body mass index, and smoking. Other risk factors include a sedentary lifestyle, premature menopause, certain ethnicities, and endocrine disorders such as hyperthyroidism and diabetes mellitus. There are also medications that may worsen osteoporosis, such as SSRIs, antiepileptics, and proton pump inhibitors. If a patient is diagnosed with osteoporosis or has a fragility fracture, further investigations may be necessary to identify the cause and assess the risk of subsequent fractures. Recommended investigations include blood tests, bone densitometry, and other procedures as indicated. It is important to identify the cause of osteoporosis and contributory factors in order to select the most appropriate form of treatment. As a minimum, all patients should have a full blood count, urea and electrolytes, liver function tests, bone profile, CRP, and thyroid function tests.
-
This question is part of the following fields:
- Musculoskeletal
-
-
Question 6
Correct
-
A Cardiotocogram (CTG) is performed on a 29-year-old female at 37 weeks gestation who has arrived at labour ward in spontaneous labour. The CTG shows a foetal heart rate of 120 bpm and variable decelerations and accelerations are present. There are no late decelerations. However, the midwife notices a 15 minute period where the foetal heart rate only varies by 2-3bpm. The mum is worried as she has not felt her baby move much for about 15 mins and would like to know what the likely cause is. She starts crying when she tells you that she took some paracetamol earlier as she was in so much pain from the contractions and is concerned this has harmed her baby. What is the most probable reason for this reduced variability?
Your Answer: Foetus is sleeping
Explanation:Episodes of decreased variability on CTG that last less than 40 minutes are often attributed to the foetus being asleep. However, if the decreased variability persists for more than 40 minutes, it can be a cause for concern. Other factors that can lead to decreased variability in foetal heart rate on CTG include maternal drug use (such as benzodiazepines, opioids or methyldopa – but not paracetamol), foetal acidosis (usually due to hypoxia), prematurity (which is not applicable in this case), foetal tachycardia (heart rate above 140 bpm, which is also not the case here), and congenital heart abnormalities.
Cardiotocography (CTG) is a medical procedure that measures pressure changes in the uterus using either internal or external pressure transducers. It is used to monitor the fetal heart rate, which normally ranges between 100-160 beats per minute. There are several features that can be observed during a CTG, including baseline bradycardia (heart rate below 100 beats per minute), which can be caused by increased fetal vagal tone or maternal beta-blocker use. Baseline tachycardia (heart rate above 160 beats per minute) can be caused by maternal pyrexia, chorioamnionitis, hypoxia, or prematurity. Loss of baseline variability (less than 5 beats per minute) can be caused by prematurity or hypoxia. Early deceleration, which is a decrease in heart rate that starts with the onset of a contraction and returns to normal after the contraction, is usually harmless and indicates head compression. Late deceleration, on the other hand, is a decrease in heart rate that lags behind the onset of a contraction and does not return to normal until after 30 seconds following the end of the contraction. This can indicate fetal distress, such as asphyxia or placental insufficiency. Variable decelerations, which are independent of contractions, may indicate cord compression.
-
This question is part of the following fields:
- Obstetrics
-
-
Question 7
Correct
-
A 9-month old infant is brought to the pediatrician by his parents. They report that he has had a runny nose and mild fever for the past week. Today, they noticed that he appeared paler than usual, has been increasingly lethargic, and seems to be struggling to breathe.
During the examination, the infant exhibits normal coloring, but there is moderate intercostal recession and nasal flaring. He only responds to chest rubbing after 5 seconds. His pulse rate is 140 beats per minute, respiratory rate is 40 breaths per minute, oxygen saturation is 94% on room air, and temperature is 37.9 ºC.
What is the most concerning aspect of this presentation as a sign of a serious illness?Your Answer: Intercostal recession
Explanation:An amber flag (intermediate risk) on the traffic light system indicates that the patient is on room air. For infants aged 12 months or older, a respiratory rate of over 40 breaths per minute would also be considered an amber flag, but not for a 6-12-month-old in this particular case.
The NICE Feverish illness in children guidelines were introduced in 2007 and updated in 2013. These guidelines use a ‘traffic light’ system to assess the risk of children under 5 years old presenting with a fever. It is important to note that these guidelines only apply until a clinical diagnosis of the underlying condition has been made. When assessing a febrile child, their temperature, heart rate, respiratory rate, and capillary refill time should be recorded. Signs of dehydration should also be looked for. Measuring temperature should be done with an electronic thermometer in the axilla if the child is under 4 weeks old or with an electronic/chemical dot thermometer in the axilla or an infrared tympanic thermometer.
The risk stratification table includes green for low risk, amber for intermediate risk, and red for high risk. The table includes categories such as color, activity, respiratory, circulation and hydration, and other symptoms. If a child is categorized as green, they can be managed at home with appropriate care advice. If they are categorized as amber, parents should be provided with a safety net or referred to a pediatric specialist for further assessment. If a child is categorized as red, they should be urgently referred to a pediatric specialist. It is important to note that oral antibiotics should not be prescribed to children with fever without an apparent source, and a chest x-ray does not need to be routinely performed if a pneumonia is suspected but the child is not going to be referred to the hospital.
-
This question is part of the following fields:
- Paediatrics
-
-
Question 8
Incorrect
-
A 78-year-old man is referred to rheumatology outpatients with increasing pain in the left leg. On examination, the left leg is slightly larger than the right and appears slightly deformed. An X-ray demonstrates cortical expansion and coarsening of trabeculae in keeping with Paget’s disease of bone.
What is likely to be found on serum biochemistry?Your Answer: Raised ALP, raised calcium, raised phosphate
Correct Answer: Raised ALP, normal calcium, normal phosphate
Explanation:Interpreting Blood Test Results for Paget’s Disease and Other Conditions
Paget’s disease of bone is a chronic disorder that affects bone turnover and can lead to bone pain and deformity. When interpreting blood test results, a raised alkaline phosphatase (ALP) level is a key indicator of Paget’s disease, while normal levels of calcium and phosphate are typical. However, if calcium is raised along with ALP, other conditions such as parathyroid disease or cancer may be the cause. If ALP and calcium are both raised, osteitis fibrosa cystica may be the culprit, while raised levels of all three (ALP, calcium, and phosphate) may indicate vitamin D intoxication or Milk alkali syndrome. Treatment for Paget’s disease typically involves analgesia, with bisphosphonates as a secondary option if needed. It’s important to seek specialist input for proper diagnosis and management.
-
This question is part of the following fields:
- Clinical Biochemistry
-
-
Question 9
Incorrect
-
A 60-year-old man visits his General Practitioner complaining of shortness of breath, nocturnal cough and wheezing for the past week. He reports that these symptoms began after he was accidentally exposed to a significant amount of hydrochloric acid fumes while working in a chemical laboratory. He has no prior history of respiratory issues or any other relevant medical history. He is a non-smoker.
What initial investigation may be the most useful in confirming the diagnosis?Your Answer: Chest X-ray
Correct Answer: Methacholine challenge test
Explanation:Diagnostic Tests for Reactive Airways Dysfunction Syndrome (RADS)
Reactive Airways Dysfunction Syndrome (RADS) is a condition that presents with asthma-like symptoms after exposure to irritant gases, vapours or fumes. To diagnose RADS, several tests may be performed to exclude other pulmonary diagnoses and confirm the presence of the condition.
One of the diagnostic criteria for RADS is the absence of pre-existing respiratory conditions. Additionally, the onset of asthma symptoms should occur after a single exposure to irritants in high concentration, with symptoms appearing within 24 hours of exposure. A positive methacholine challenge test (< 8 mg/ml) following exposure and possible airflow obstruction on pulmonary function tests can also confirm the diagnosis. While a chest X-ray and full blood count may be requested to exclude other causes of symptoms, they are usually unhelpful in confirming the diagnosis of RADS. Peak flow is also not useful in diagnosis, as there is no pre-existing reading to compare values. The skin prick test may be useful in assessing reactions to common environmental allergens, but it is not helpful in diagnosing RADS as it occurs after one-off exposures. In conclusion, a combination of diagnostic tests can help confirm the diagnosis of RADS and exclude other pulmonary conditions.
-
This question is part of the following fields:
- Respiratory
-
-
Question 10
Correct
-
An 80-year-old man comes to the doctor with complaints of widespread aches, bone pains, headaches, and nerve entrapment syndromes that have been bothering him for several years. His blood work reveals an elevated serum alkaline phosphatase, and his urine test shows an increased urinary hydroxyproline. The X-ray of his skull displays a mix of lysis and sclerosis with thickened trabeculae. What medication would be appropriate for this patient?
Your Answer: Oral bisphosphonates to inhibit osteoclastic activity
Explanation:Treatment Options for Paget’s Disease: Oral Bisphosphonates and More
Paget’s disease is a condition characterized by abnormal bone remodeling, which can lead to a range of symptoms including bone pain, fractures, and osteoarthritis. Diagnosis is typically made through radiograph findings and laboratory tests. Treatment options vary depending on the severity of symptoms, with physiotherapy and NSAIDs being effective for mild cases. However, for more severe cases, oral bisphosphonates and calcitonin may be necessary to inhibit osteoclastic activity. Chelation therapy, antidepressant medication, and chemotherapy for osteosarcoma are not indicated for Paget’s disease. Operative therapy may be necessary for patients with degenerative joint disease and pathological fractures, but should be preceded by treatment with oral bisphosphonates or calcitonin to reduce bleeding.
-
This question is part of the following fields:
- Rheumatology
-
-
Question 11
Incorrect
-
A 30-year-old man presents to the Genitourinary Medicine (GUM) Clinic with a rash. Upon examination, the doctor observes numerous flesh-colored, hemispherical papules with a central indentation, measuring around 4 mm in diameter, covering the upper thighs and shaft of the penis. The diagnosis is molluscum contagiosum. What would be a suitable treatment plan for this patient?
Your Answer: Saline bath
Correct Answer: No treatment is advised
Explanation:Molluscum Contagiosum: Diagnosis and Treatment Options
Molluscum contagiosum is a viral skin disease that can be transmitted through sexual and non-sexual means. It results in flesh-colored, hemispherical papules with a central indentation, typically found on the genitalia, lower abdomen, and upper thighs. The incubation period is 3-12 weeks, and lesions can persist for up to two years before resolving on their own.
Diagnosis is made through clinical examination and electron microscopy of lesion particles. Treatment is not routinely recommended due to the self-resolving nature of the disease. However, cosmetic treatments such as benzoyl peroxide and podophyllotoxin may be used in adults with unsightly lesions on exposed areas or affecting quality of life.
Saline baths, acyclovir, corticosteroids, and metronidazole are not appropriate treatments for molluscum contagiosum. Saline baths are used for itch relief in conditions like eczema, acyclovir is for herpes zoster infection, corticosteroids are not recommended for viral skin diseases, and metronidazole is used for rosacea.
In conclusion, molluscum contagiosum is a viral skin disease that can be diagnosed through clinical examination and electron microscopy. Treatment is not routinely recommended, but cosmetic options may be used in certain cases. Other treatments, such as saline baths, acyclovir, corticosteroids, and metronidazole, are not appropriate for this condition.
-
This question is part of the following fields:
- Sexual Health
-
-
Question 12
Incorrect
-
A 25-year-old man is brought to the Emergency Department by his friends. They suspect he has taken an illicit substance but are unsure of what he has consumed. The patient reports feeling disconnected from his body and experiencing vivid visual hallucinations of colorful, abstract shapes. He expresses concern about being watched and unable to return to normal. Additionally, he complains of a dry mouth, headache, and nausea. Upon examination, the patient appears agitated, with dilated pupils, tachycardia, and mild hypertension. Hyperreflexia is also noted in the limbs. What would be an appropriate management step for this patient, considering the probable substance ingested?
Your Answer: Flumazenil
Correct Answer: Lorazepam
Explanation:LSD intoxication is characterized by vivid visual hallucinations, depersonalization, psychosis, and paranoia. In the given scenario, the patient is exhibiting somatic symptoms along with these classic features. If attempts to calm the patient down fail, administering benzodiazepines such as lorazepam is an appropriate option.
Activated charcoal is not useful in this case as LSD is rapidly absorbed through the gastrointestinal tract. Dantrolene is not indicated as it is used to manage hyperthermia caused by ecstasy poisoning, which is not the case here. Flumazenil, which is used to treat benzodiazepine overdose, is not relevant unless the patient has been given an excessive amount of benzodiazepines during treatment for LSD intoxication.
Understanding LSD Intoxication
LSD, also known as lysergic acid diethylamide, is a synthetic hallucinogen that gained popularity as a recreational drug in the 1960s to 1980s. While its usage has declined in recent years, it still persists, with adolescents and young adults being the most frequent users. LSD is one of the most potent psychoactive compounds known, and its psychedelic effects usually involve heightening or distortion of sensory stimuli and enhancement of feelings and introspection.
Patients with LSD toxicity typically present following acute panic reactions, massive ingestions, or unintentional ingestions. The symptoms of LSD intoxication are variable and can include impaired judgments, amplification of current mood, agitation, and drug-induced psychosis. Somatic symptoms such as nausea, headache, palpitations, dry mouth, drowsiness, and tremors may also occur. Signs of LSD intoxication can include tachycardia, hypertension, mydriasis, paresthesia, hyperreflexia, and pyrexia.
Massive overdoses of LSD can lead to complications such as respiratory arrest, coma, hyperthermia, autonomic dysfunction, and bleeding disorders. The diagnosis of LSD toxicity is mainly based on history and examination, as most urine drug screens do not pick up LSD.
Management of the intoxicated patient is dependent on the specific behavioral manifestation elicited by the drug. Agitation should be managed with supportive reassurance in a calm, stress-free environment, and benzodiazepines may be used if necessary. LSD-induced psychosis may require antipsychotics. Massive ingestions of LSD should be treated with supportive care, including respiratory support and endotracheal intubation if needed. Hypertension, tachycardia, and hyperthermia should be treated symptomatically, while hypotension should be treated initially with fluids and subsequently with vasopressors if required. Activated charcoal administration and gastric emptying are of little clinical value by the time a patient presents to the emergency department, as LSD is rapidly absorbed through the gastrointestinal tract.
In conclusion, understanding LSD intoxication is crucial for healthcare professionals to provide appropriate management and care for patients who present with symptoms of LSD toxicity.
-
This question is part of the following fields:
- Pharmacology
-
-
Question 13
Correct
-
A 6-hour-old neonate born at 38 weeks gestation is being evaluated on the postnatal ward. The midwives have observed that the baby is jittery and has irregular breathing. The mother had gestational diabetes. At 6 hours old, a heel prick blood glucose measurement was taken and showed the following result:
Glucose 1.2 mmol/L (1.5 – 6)
Apart from these symptoms, the baby appears to be healthy without other complications. What is the most appropriate course of action for managing this newborn?Your Answer: Admit to neonatal unit and give IV 10% dextrose
Explanation:To manage a newborn with symptomatic hypoglycaemia, the appropriate course of action is to administer a bolus of dextrose to prevent further neurological symptoms such as seizures, coma or apnoea. Admitting the infant to the neonatal unit is recommended to ensure proper care is provided, but breastfeeding alone is not sufficient to correct the hypoglycaemia quickly enough to prevent potential complications. Keeping the infant on the postnatal ward and encouraging breastfeeding is inappropriate, as this setting is not equipped to manage a potentially severely unwell infant. Repeating the heel prick glucose measurement in one hour is unnecessary, as one measurement is enough to initiate treatment without waiting for a second confirmatory test. Obtaining a venous sample for laboratory glucose testing is also unnecessary, as a heel prick test is accurate enough to confirm the hypoglycaemia and treatment should not be delayed while awaiting laboratory confirmation.
Neonatal Hypoglycaemia: Causes, Symptoms, and Management
Neonatal hypoglycaemia is a common condition in newborn babies, especially in the first 24 hours of life. While there is no agreed definition, a blood glucose level of less than 2.6 mmol/L is often used as a guideline. Transient hypoglycaemia is normal and usually resolves on its own, but persistent or severe hypoglycaemia may be caused by various factors such as preterm birth, maternal diabetes mellitus, IUGR, hypothermia, neonatal sepsis, inborn errors of metabolism, nesidioblastosis, or Beckwith-Wiedemann syndrome.
Symptoms of neonatal hypoglycaemia can be autonomic, such as jitteriness, irritability, tachypnoea, and pallor, or neuroglycopenic, such as poor feeding/sucking, weak cry, drowsiness, hypotonia, and seizures. Other features may include apnoea and hypothermia. Management of neonatal hypoglycaemia depends on the severity of the condition and whether the newborn is symptomatic or not. Asymptomatic babies can be encouraged to feed normally and have their blood glucose monitored, while symptomatic or severely hypoglycaemic babies may need to be admitted to the neonatal unit and receive intravenous infusion of 10% dextrose.
-
This question is part of the following fields:
- Paediatrics
-
-
Question 14
Incorrect
-
A 25-year-old man visits his general practitioner (GP), as he is concerned that he may have inherited a heart condition. He is fit and well and has no history of any medical conditions. However, his 28-year-old brother has recently been diagnosed with hypertrophic cardiomyopathy (HCM) after collapsing when he was playing football. The patient’s father died suddenly when he was 42, which the family now thinks might have been due to the same condition.
Which of the following signs is most likely to be found in a patient with this condition?Your Answer: Ejection systolic murmur increased by squatting
Correct Answer: Ejection systolic murmur decreased by squatting
Explanation:Understanding the Ejection Systolic Murmur in Hypertrophic Cardiomyopathy: Decreased by Squatting
Hypertrophic cardiomyopathy (HCM) is a condition characterized by asymmetrical hypertrophy of both ventricles, with the septum hypertrophying and causing an outflow obstruction of the left ventricle. This obstruction leads to an ejection systolic murmur and reduced cardiac output. However, interestingly, this murmur can be decreased by squatting, which is not typical for most heart murmurs.
Squatting affects murmurs by increasing afterload and preload, which usually makes heart murmurs louder. However, in HCM, the murmur intensity is decreased due to increased left ventricular size and reduced outflow obstruction. Other findings on examination may include a jerky pulse and a double apex beat.
While HCM is often asymptomatic, it can present with dyspnea, angina, and syncope. Patients are also at risk of sudden cardiac death, most commonly due to ventricular arrhythmias. Poor prognostic factors include syncope, family history of sudden death, onset of symptoms at a young age, ventricular tachycardia on Holter monitoring, abnormal blood pressure response during exercise, and septal thickness greater than 3 cm on echocardiogram.
In summary, understanding the ejection systolic murmur in HCM and its unique response to squatting can aid in the diagnosis and management of this condition.
-
This question is part of the following fields:
- Cardiology
-
-
Question 15
Incorrect
-
A 54-year-old woman visited her primary care physician complaining of persistent polydipsia and swollen legs for the past few months. She reported having a medical history of chronic obstructive pulmonary disease (COPD), schizophrenia, and hypertension. Her current medications include tiotropium inhaler, ipratropium bromide inhaler, olanzapine, and nifedipine. She had previously taken bendroflumethiazide, which was discontinued two years ago, and had a 5-day course of 30mg oral prednisolone six months ago due to a COPD exacerbation. Her fasting blood tests revealed:
Fasting plasma glucose 7 mmol/L (3.9-5.4)
Random plasma glucose 12 mmol/L (<7.8)
Which medication is likely responsible for her abnormal blood results?Your Answer: Prednisolone
Correct Answer: Olanzapine
Explanation:Antipsychotics can cause metabolic side effects such as dysglycaemia, dyslipidaemia, and diabetes mellitus. In this case, the patient’s persistent hyperglycaemia in both fasting blood tests and HBA1c tests has led to a diagnosis of type 2 diabetes, likely caused by her regular medication, olanzapine. While the patient has also experienced swollen legs, this is likely due to nifedipine rather than the cause of her deranged blood result. A 5-day course of prednisolone given half a year ago is unlikely to be the cause of her diabetes. Ipratropium bromide is also an unlikely culprit, as it is not known to increase blood sugar levels. Thiazide diuretics, which can increase blood sugar levels, were stopped two years ago and are therefore unlikely to be the cause of her diabetes. Other potential metabolic side effects of thiazide diuretics include hypomagnesemia, hypokalemia, dyslipidemia, and hyperuricemia.
Antipsychotics are a group of drugs used to treat schizophrenia, psychosis, mania, and agitation. They are divided into two categories: typical and atypical antipsychotics. The latter were developed to address the extrapyramidal side-effects associated with the first generation of typical antipsychotics. Typical antipsychotics work by blocking dopaminergic transmission in the mesolimbic pathways through dopamine D2 receptor antagonism. They are associated with extrapyramidal side-effects and hyperprolactinaemia, which are less common with atypical antipsychotics.
Extrapyramidal side-effects (EPSEs) are common with typical antipsychotics and include Parkinsonism, acute dystonia, sustained muscle contraction, akathisia, and tardive dyskinesia. The latter is a late onset of choreoathetoid movements that may be irreversible and occur in 40% of patients. The Medicines and Healthcare products Regulatory Agency has issued specific warnings when antipsychotics are used in elderly patients, including an increased risk of stroke and venous thromboembolism. Other side-effects include antimuscarinic effects, sedation, weight gain, raised prolactin, impaired glucose tolerance, neuroleptic malignant syndrome, reduced seizure threshold, and prolonged QT interval.
-
This question is part of the following fields:
- Psychiatry
-
-
Question 16
Correct
-
A 20-year-old male presents to the Emergency department with left-sided chest pain and difficulty breathing that started during a football game.
Which diagnostic test is most likely to provide a conclusive diagnosis?Your Answer: Chest x ray
Explanation:Diagnosis of Pneumothorax
A pneumothorax is suspected based on the patient’s medical history. To confirm the diagnosis, a chest x-ray is the only definitive test available. An ECG is unlikely to show any abnormalities, while blood gas analysis may reveal a slightly elevated oxygen level and slightly decreased carbon dioxide level, even if the patient is not experiencing significant respiratory distress.
-
This question is part of the following fields:
- Respiratory
-
-
Question 17
Correct
-
A 35-year-old woman who is 16 weeks pregnant presents with gradual onset abdominal pain that has been getting progressively worse for 4 days. She reports feeling nauseated and has vomited twice today. Her temperature is 38.4ºC, blood pressure is 116/82 mmHg, and heart rate is 104 beats per minute. The uterus is palpable just above the umbilicus and a fetal heartbeat is heard via hand-held Doppler. On speculum examination, the cervix is closed and there is no blood. She has a history of menorrhagia due to uterine fibroids. This is her first pregnancy. What is the most likely diagnosis?
Your Answer: Fibroid degeneration
Explanation:During pregnancy, uterine fibroids can grow due to their sensitivity to oestrogen. If their growth exceeds their blood supply, they may undergo red or ‘carneous’ degeneration, which can cause symptoms such as low-grade fever, pain, and vomiting. Treatment typically involves rest and pain relief, and the condition should resolve within a week. It is unlikely that this is a multiple pregnancy, as it would have been detected by now, and a closed cervical os suggests that a miscarriage is not imminent.
Understanding Uterine Fibroids
Uterine fibroids are non-cancerous growths that develop in the uterus. They are more common in black women and are thought to occur in around 20% of white women in their later reproductive years. Fibroids are usually asymptomatic, but they can cause menorrhagia, which can lead to iron-deficiency anaemia. Other symptoms include lower abdominal pain, bloating, and urinary symptoms. Fibroids may also cause subfertility.
Diagnosis is usually made through transvaginal ultrasound. Asymptomatic fibroids do not require treatment, but periodic monitoring is recommended. Menorrhagia secondary to fibroids can be managed with various treatments, including the levonorgestrel intrauterine system, NSAIDs, tranexamic acid, and hormonal therapies.
Medical treatment to shrink or remove fibroids may include GnRH agonists or ulipristal acetate, although the latter is not currently recommended due to concerns about liver toxicity. Surgical options include myomectomy, hysteroscopic endometrial ablation, hysterectomy, and uterine artery embolization.
Fibroids generally regress after menopause, but complications such as subfertility and iron-deficiency anaemia can occur. Red degeneration, which is haemorrhage into the tumour, is a common complication during pregnancy.
-
This question is part of the following fields:
- Obstetrics
-
-
Question 18
Incorrect
-
A 2-year-old toddler is brought to the GP by concerned parents who have noticed swelling of the foreskin during urination and inability to retract it. What is the most appropriate initial approach to manage this condition?
Your Answer: Advise daily application of lubricant cream and review in 2 weeks
Correct Answer: Reassure parents and review in 6-months
Explanation:Forcible retraction should be avoided in younger children with phimosis, as it can lead to scar formation. It is important to note that phimosis is normal in children under the age of 2 and typically resolves on its own over time. Therefore, there is no urgent need for referral to paediatrics or paediatric surgeons. While lubricant is not helpful in managing phimosis, topical steroids have been found to be beneficial.
Phimosis in Children: When to Seek Treatment
Phimosis is a condition where the foreskin of the penis cannot be retracted. In children under two years old, this may be a normal physiological process that will resolve on its own. The British Association of Paediatric Urologists recommends an expectant approach in such cases, as forcible retraction can lead to scarring. However, personal hygiene is important to prevent infections. If the child is over two years old and experiences recurrent balanoposthitis or urinary tract infections, treatment can be considered.
It is important to note that parents should not attempt to forcibly retract the foreskin in young children. This can cause pain and scarring, and may not even be necessary. Instead, parents should focus on teaching their child good hygiene habits to prevent infections. If the child is experiencing recurrent infections or other symptoms, it may be time to seek medical treatment. By following these guidelines, parents can help their child manage phimosis and maintain good health.
-
This question is part of the following fields:
- Paediatrics
-
-
Question 19
Correct
-
A 65-year-old woman presents with gradual onset proximal shoulder and pelvic girdle muscular pains and stiffness. She is experiencing difficulty getting dressed in the morning and cannot raise her arms above the horizontal. She is currently taking atorvastatin 20 mg for primary prevention and recently completed a course of clarithromycin for a lower respiratory tract infection (penicillin-allergic). Blood tests were conducted, and the results are as follows:
Hb 128 g/L Male: (135-180) Female: (115 - 160)
WBC 12.8 * 109/L (4.0 - 11.0)
Platelets 380 * 109/L (150 - 400)
Na+ 142 mmol/L (135 - 145)
K+ 4.2 mmol/L (3.5 - 5.0)
Urea 6.1 mmol/L (2.0 - 7.0)
Creatinine 66 µmol/L (55 - 120)
Bilirubin 10 µmol/L (3 - 17)
ALP 64 u/L (30 - 100)
ALT 32 u/L (3 - 40)
γGT 55 u/L (8 - 60)
Albumin 37 g/L (35 - 50)
CRP 72 mg/L (< 5)
ESR 68 mg/L (< 30)
Creatine kinase 58 U/L (35 - 250)
What is the most probable underlying diagnosis?Your Answer: Polymyalgia rheumatica
Explanation:Polymyalgia rheumatica is not associated with an increase in creatine kinase levels. Instead, blood tests typically reveal signs of inflammation, such as elevated white blood cell count, C-reactive protein, and erythrocyte sedimentation rate. These findings, combined with the patient’s medical history and demographic information, strongly suggest polymyalgia rheumatica as the diagnosis. In contrast, conditions such as polymyositis and dermatomyositis typically involve a significant rise in creatine kinase levels, and dermatomyositis also presents with a distinctive rash. Fibromyalgia does not typically show any signs of inflammation on blood tests. While statin-induced myopathy is a possibility based on the patient’s history, the absence of elevated creatine kinase levels makes this diagnosis less likely.
Polymyalgia Rheumatica: A Condition of Muscle Stiffness in Older People
Polymyalgia rheumatica (PMR) is a common condition that affects older people. It is characterized by muscle stiffness and elevated inflammatory markers. Although it is closely related to temporal arthritis, the underlying cause is not fully understood, and it does not appear to be a vasculitic process. PMR typically affects patients over the age of 60 and has a rapid onset, usually within a month. Patients experience aching and morning stiffness in proximal limb muscles, along with mild polyarthralgia, lethargy, depression, low-grade fever, anorexia, and night sweats.
To diagnose PMR, doctors look for raised inflammatory markers, such as an ESR of over 40 mm/hr. Creatine kinase and EMG are normal. Treatment for PMR involves prednisolone, usually at a dose of 15 mg/od. Patients typically respond dramatically to steroids, and failure to do so should prompt consideration of an alternative diagnosis.
-
This question is part of the following fields:
- Musculoskeletal
-
-
Question 20
Incorrect
-
A 4-year-old boy visits his GP for his routine vaccinations. He has received all the recommended vaccines for his age group and has not experienced any adverse reactions. He is in good health and his height and weight are within normal range. The child's family migrated from India six years ago. What vaccinations should the doctor administer during this visit?
Your Answer: BCG vaccination
Correct Answer: 4-in-1 booster and MMR vaccination
Explanation:For a child between 3 and 4 years old, the recommended immunisations are the MMR vaccine and the 4-in-1 booster, which includes vaccinations for diphtheria, tetanus, whooping cough, and polio. It is important to note that the child should have already received a BCG vaccination when they were between 0 and 12 months old if their parents were born in a country with a high incidence of tuberculosis. The HPV vaccine is not recommended for children of this age. The 3-in-1 booster and meningococcal B vaccine is an inappropriate combination, as is the 6-in-1 vaccine and meningococcal ACWY vaccine.
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.
-
This question is part of the following fields:
- Paediatrics
-
-
Question 21
Incorrect
-
A 35-year-old woman presents to the emergency department with abdominal pain and nausea. She has a medical history of gallstones and alcohol dependence. Upon examination, she has a tender right epigastrium and a temperature of 38.3ºC. Despite this, she is hemodynamically stable. Her blood results show a raised white cell count and C-reactive protein, but her liver profile and serum amylase/lipase results are normal. The sepsis protocol is initiated, and she is started on intravenous antibiotics. What is the most appropriate next step in managing this patient's likely diagnosis?
Your Answer: Laparoscopic cholecystectomy once inflammation has subsided
Correct Answer: Laparoscopic cholecystectomy within 1 week of diagnosis
Explanation:The recommended treatment for acute cholecystitis is intravenous antibiotics followed by laparoscopic cholecystectomy within 1 week of diagnosis. Conservative management is not recommended as it may lead to chronic disease and recurrence of infection. Delaying treatment and opting for open cholecystectomy once inflammation has subsided is also not recommended as it has been associated with increased rates of sepsis, jaundice, and cancer. Laparoscopic cholecystectomy is preferred over open cholecystectomy as it is associated with lower postoperative morbidity, mortality, and reduced length of stay in the hospital.
Acute cholecystitis is a condition where the gallbladder becomes inflamed. This is usually caused by gallstones, which are present in 90% of cases. The remaining 10% of cases are known as acalculous cholecystitis and are typically seen in severely ill patients who are hospitalized. The pathophysiology of acute cholecystitis is multifactorial and can be caused by gallbladder stasis, hypoperfusion, and infection. In immunosuppressed patients, it may develop due to Cryptosporidium or cytomegalovirus. This condition is associated with high morbidity and mortality rates.
The main symptom of acute cholecystitis is right upper quadrant pain, which may radiate to the right shoulder. Patients may also experience fever and signs of systemic upset. Murphy’s sign, which is inspiratory arrest upon palpation of the right upper quadrant, may be present. Liver function tests are typically normal, but deranged LFTs may indicate Mirizzi syndrome, which is caused by a gallstone impacted in the distal cystic duct, causing extrinsic compression of the common bile duct.
Ultrasound is the first-line investigation for acute cholecystitis. If the diagnosis remains unclear, cholescintigraphy (HIDA scan) may be used. In this test, technetium-labelled HIDA is injected IV and taken up selectively by hepatocytes and excreted into bile. In acute cholecystitis, there is cystic duct obstruction, and the gallbladder will not be visualized.
The treatment for acute cholecystitis involves intravenous antibiotics and cholecystectomy. NICE now recommends early laparoscopic cholecystectomy, within 1 week of diagnosis. Previously, surgery was delayed for several weeks until the inflammation had subsided. Pregnant women should also proceed to early laparoscopic cholecystectomy to reduce the chances of maternal-fetal complications.
-
This question is part of the following fields:
- Surgery
-
-
Question 22
Correct
-
A 67-year-old man presents to the hospital in a confused state. He is unable to explain his condition but insists that he was admitted for 10 days last month despite records showing his last admission to be 7 months ago. He cannot recall which secondary school he attended and, after being on the ward for a week, he does not recognize his primary doctor's face. The patient has a medical history of hypertension, ischemic stroke, and alcoholic liver disease.
Upon examination, the patient has normal tone, upgoing plantar reflexes on the right, and a broad-based gait. There are bilateral cranial nerve 6 (CN 6) palsies associated with nystagmus.
What is the probable diagnosis for this patient?Your Answer: Korsakoff's syndrome
Explanation:Korsakoff’s syndrome is a complication that can arise from Wernicke’s encephalopathy, and it is characterized by anterograde amnesia, retrograde amnesia, and confabulation. In this case, the patient displays confusion, ataxia, and ophthalmoplegia, as well as anterograde and retrograde amnesia with confabulation, which suggests that they have progressed to Korsakoff’s syndrome. Wernicke’s encephalopathy is caused by a deficiency in thiamine (vitamin B1), which is often due to chronic alcohol abuse or malnutrition. It presents with confusion, ataxia, and oculomotor dysfunction, which can lead to Korsakoff’s syndrome if left untreated. Brain tumors typically present with symptoms of increased intracranial pressure and focal neurological deficits, which are not present in this case. Lewy body dementia can be diagnosed if a patient with decreased cognition displays two or more of the following symptoms: parkinsonism, visual hallucinations, waxing-and-waning levels of consciousness, and rapid-eye-movement (REM) sleep behavior disorder. Transient global amnesia is a temporary condition that involves retrograde and anterograde amnesia following a stressful event, lasting between 2-8 hours but less than 24 hours. Based on the patient’s symptoms and history of alcohol abuse, Korsakoff’s syndrome is the most likely diagnosis.
Understanding Korsakoff’s Syndrome
Korsakoff’s syndrome is a memory disorder that is commonly observed in individuals who have a history of alcoholism. The condition is caused by a deficiency of thiamine, which leads to damage and bleeding in the mammillary bodies of the hypothalamus and the medial thalamus. Korsakoff’s syndrome often develops after untreated Wernicke’s encephalopathy.
The symptoms of Korsakoff’s syndrome include anterograde amnesia, which is the inability to form new memories, and retrograde amnesia. Individuals with this condition may also experience confabulation, which is the production of fabricated or distorted memories to fill gaps in their recollection.
-
This question is part of the following fields:
- Psychiatry
-
-
Question 23
Correct
-
A 5-year-old boy is brought to the Emergency Department with symptoms of lethargy, high fever, and headache. During examination, he presents with neck stiffness and a rash. When should the communicable disease consultant (CDC) be notified?
Your Answer: Clinical diagnosis
Explanation:Management of Suspected Meningococcal Meningitis: Importance of Early Diagnosis and Treatment
This article discusses the management of suspected meningococcal meningitis, a serious and potentially life-threatening condition caused by Neisseria meningitidis. Early diagnosis and treatment are crucial to prevent complications and contain the spread of the disease.
Clinical Diagnosis
The classic triad of symptoms associated with meningococcal meningitis includes fever, headache, and meningeal signs, usually in the form of neck stiffness. A non-blanching rash is also a common feature. Medical practitioners have a statutory obligation to notify Public Health England on clinical suspicion of meningococcal meningitis and septicaemia, without waiting for microbiological confirmation.Upon Microbiological Diagnosis
Delay in notifying the communicable disease consultant of a suspected case of meningococcal meningitis can lead to a delay in contact tracing and outbreak management. Upon culture and isolation, the patient should be administered a stat dose of intramuscular or intravenous benzylpenicillin. Samples should be obtained before administration of antibiotics, including blood for cultures and PCR, CSF for microscopy, culture, and PCR, and nasopharyngeal swab for culture. The patient should be kept in isolation, Public Health England notified, and contacts traced.Upon Treatment
Early treatment with intramuscular or intravenous benzylpenicillin is essential to prevent complications and reduce mortality. Treatment should be administered at the earliest opportunity, either in primary or secondary care.After Discharge
Alerting the communicable disease consultant after discharge is too late to track and treat other individuals at risk. Therefore, it is crucial to notify Public Health England and trace contacts as soon as a suspected case of meningococcal meningitis is identified. -
This question is part of the following fields:
- Acute Medicine And Intensive Care
-
-
Question 24
Incorrect
-
A 56-year-old man presents with non-specific chest pain lasting 6 hours. His ECG shows no significant changes, and cardiac enzymes are normal. As the pain becomes sharper and localizes to the left side of his chest over the next 48 hours, he reports that it worsens when lying down and taking deep breaths. The diagnosis is pericarditis.
What can be said about the pericardium in this case?Your Answer: The fibrous pericardium is an ectodermal derivative
Correct Answer: The transverse sinus of the pericardium can be found behind the major vessels emerging from the ventricles, but in front of the superior vena cava
Explanation:Pericardium Layers and Sinuses: Understanding the Anatomy of the Heart’s Protective Membrane
The pericardium is a protective membrane that surrounds the heart. It consists of two layers: the fibrous pericardium and the serous pericardium. The fibrous pericardium adheres to the heart muscle and is derived from the somatopleuric mesoderm of the body cavity. The visceral layer of the serous pericardium, also known as the epicardium, adheres to the heart muscle and is derived from the splanchnopleuric mesoderm of the body cavity.
The pericardium also contains two sinuses: the transverse sinus and the oblique sinus. The transverse sinus can be found behind the major vessels emerging from the ventricles, but in front of the superior vena cava. The oblique sinus is the other pericardial sinus.
It is important to understand the anatomy of the pericardium in order to properly diagnose and treat conditions that affect the heart.
-
This question is part of the following fields:
- Cardiology
-
-
Question 25
Incorrect
-
A 40-year-old woman presents to the Gastroenterology Clinic for a follow-up appointment after a liver biopsy. She was referred by her General Practitioner two weeks ago due to symptoms of fatigue, myalgia, abdominal bloating and significantly abnormal aminotransferases. The results of her liver biopsy and blood tests confirm a diagnosis of autoimmune hepatitis (AIH).
What should be the next course of action in managing this patient?Your Answer: Liver transplantation
Correct Answer: Azathioprine and prednisolone
Explanation:Treatment Options for Autoimmune Hepatitis: Azathioprine and Prednisolone
Autoimmune hepatitis (AIH) is a chronic liver disease that primarily affects young and middle-aged women. The cause of AIH is unknown, but it is often associated with other autoimmune diseases. The condition is characterized by inflammation of the liver, which can progress to cirrhosis if left untreated.
The first-line treatment for AIH is a combination of azathioprine and prednisolone. Patients with moderate-to-severe inflammation should receive immunosuppressive treatment, while those with mild disease may be closely monitored instead. Cholestyramine, a medication used for hyperlipidemia and other conditions, is not a first-line treatment for AIH.
Liver transplantation is not typically recommended as a first-line treatment for AIH, but it may be necessary in severe cases. However, AIH can recur following transplantation. Antiviral medications like peginterferon alpha-2a and tenofovir are not effective in treating AIH, as the condition is not caused by a virus.
In summary, azathioprine and prednisolone are the primary treatment options for AIH, with liver transplantation reserved for severe cases. Other medications like cholestyramine, peginterferon alpha-2a, and tenofovir are not effective in treating AIH.
-
This question is part of the following fields:
- Gastroenterology
-
-
Question 26
Correct
-
What statement is true about fragile X syndrome?
Your Answer: Affected children are taller than average
Explanation:Fragile X Syndrome: Characteristics and Diagnosis
Fragile X syndrome is a genetic disorder that affects children, causing them to be taller than average and exhibit physical characteristics such as a high arched palate, long ears, a long face, and macro orchidism. The diagnosis of this syndrome was originally based on the expression of a folate-sensitive fragile X site induced in cell culture under conditions of folate deprivation. While affected males usually have learning difficulties, not all do. Additionally, one third of females with the mutation also experience learning difficulties.
Diagnosis of fragile X syndrome can be made through the detection of the mutant FMR 1 gene by chorionic villus sampling. In some cases, confirmatory amniocentesis may be required. It is important to identify this syndrome early on in order to provide appropriate support and interventions for affected individuals.
-
This question is part of the following fields:
- Clinical Sciences
-
-
Question 27
Incorrect
-
A 38-year-old woman comes to the clinic with a chief complaint of swollen hands and feet for the past 3 months. She reports that the symptoms worsen in cold weather and her fingers frequently turn blue. She is now experiencing difficulty making a fist with both hands. Additionally, she has observed thickening of the skin spreading up her arms and thighs over the last month. She also reports a dry cough that started a month ago, accompanied by shortness of breath during physical activity. What is the probable diagnosis?
Your Answer: Systemic lupus erythematosus
Correct Answer: Diffuse systemic sclerosis
Explanation:The patient is likely suffering from systemic sclerosis, which is characterized by the tightening and fibrosis of the skin, commonly known as scleroderma. The presence of a dry cough and involvement of the proximal limbs suggest diffuse systemic sclerosis, which has a poorer prognosis than limited systemic sclerosis (also known as CREST syndrome). Eosinophilic fasciitis, a rare form of systemic sclerosis, is unlikely as it spares the hands and does not present with Raynaud’s phenomenon. Primary Raynaud’s phenomenon, which is relatively common, does not typically present with sclerotic features and is likely part of the patient’s wider autoimmune disease.
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.
-
This question is part of the following fields:
- Musculoskeletal
-
-
Question 28
Correct
-
A 49-year-old Caucasian woman presents with a severe acute attack of bronchial asthma. For 1 week, she has had fever, malaise, anorexia and weight loss. She has tingling and numbness in her feet and hands. On examination, palpable purpura is present and nodular lesions are present on the skin. Investigations revealed eosinophilia, elevated erythrocyte sedimentation rate (ESR), fibrinogen, and α-2-globulin, positive p-ANCA, and a chest X-ray reveals pulmonary infiltrates.
Which one of the following is the most likely diagnosis?Your Answer: Allergic granulomatosis (Churg-Strauss syndrome)
Explanation:Comparison of Vasculitis Conditions with Eosinophilia
Eosinophilia is a common feature in several vasculitis conditions, but the clinical presentation and histopathologic features can help differentiate between them. Allergic granulomatosis, also known as Churg-Strauss syndrome, is characterized by asthma, peripheral and tissue eosinophilia, granuloma formation, and vasculitis of multiple organ systems. In contrast, granulomatosis with polyangiitis (GPA) involves the lungs and upper respiratory tract and is c-ANCA positive, but does not typically present with asthma-like symptoms or peripheral eosinophilia. Polyarteritis nodosa (PAN) can present with multisystem involvement, but does not typically have an asthma-like presentation or peripheral eosinophilia. Hypereosinophilic syndrome, also known as chronic eosinophilic leukemia, is characterized by persistent eosinophilia in blood and exclusion of other causes of reactive eosinophilia. Finally, microscopic polyangiitis is similar to GPA in many aspects, but does not involve granuloma formation and does not typically present with peripheral eosinophilia.
-
This question is part of the following fields:
- Respiratory
-
-
Question 29
Incorrect
-
A 62-year-old woman is being evaluated in the pre-operative clinic for an elective cholecystectomy. She has no other medical conditions except for two episodes of cholecystitis within the past year. Additionally, she has never undergone a blood transfusion before. What information should be included in the request to the blood bank?
Your Answer: Group and save, direct Combs' test (DAT) and a cross match for 2 units
Correct Answer: Group and save only
Explanation:Blood Testing for Elective Surgeries
When it comes to elective surgeries, a group and save blood testing procedure is typically sufficient. This is a common practice in modern blood banks and involves determining the patient’s blood group and confirming it, as well as conducting an antibody screen. If the antibody screen test comes back positive, additional tests such as a cross match or direct Coombs’ test (also known as the direct antiglobulin test or DAT) may be necessary. However, these tests are not typically performed unless the patient has a recent history of blood transfusions or known red cell antibodies. Overall, the group and save method is a standard and effective way to ensure that patients have the appropriate blood type available in case of a transfusion during elective surgeries.
-
This question is part of the following fields:
- Haematology
-
-
Question 30
Correct
-
A 50-year-old woman presents with fever and pain in the upper right quadrant. Her blood work reveals an elevated CRP and an ultrasound confirms acute cholecystitis. The patient is administered analgesia and IV fluids. What other treatment options are likely to be prescribed for this patient?
Your Answer: Intravenous antibiotics + laparoscopic cholecystectomy within 1 week
Explanation:Acute cholecystitis is a condition where the gallbladder becomes inflamed. This is usually caused by gallstones, which are present in 90% of cases. The remaining 10% of cases are known as acalculous cholecystitis and are typically seen in severely ill patients who are hospitalized. The pathophysiology of acute cholecystitis is multifactorial and can be caused by gallbladder stasis, hypoperfusion, and infection. In immunosuppressed patients, it may develop due to Cryptosporidium or cytomegalovirus. This condition is associated with high morbidity and mortality rates.
The main symptom of acute cholecystitis is right upper quadrant pain, which may radiate to the right shoulder. Patients may also experience fever and signs of systemic upset. Murphy’s sign, which is inspiratory arrest upon palpation of the right upper quadrant, may be present. Liver function tests are typically normal, but deranged LFTs may indicate Mirizzi syndrome, which is caused by a gallstone impacted in the distal cystic duct, causing extrinsic compression of the common bile duct.
Ultrasound is the first-line investigation for acute cholecystitis. If the diagnosis remains unclear, cholescintigraphy (HIDA scan) may be used. In this test, technetium-labelled HIDA is injected IV and taken up selectively by hepatocytes and excreted into bile. In acute cholecystitis, there is cystic duct obstruction, and the gallbladder will not be visualized.
The treatment for acute cholecystitis involves intravenous antibiotics and cholecystectomy. NICE now recommends early laparoscopic cholecystectomy, within 1 week of diagnosis. Previously, surgery was delayed for several weeks until the inflammation had subsided. Pregnant women should also proceed to early laparoscopic cholecystectomy to reduce the chances of maternal-fetal complications.
-
This question is part of the following fields:
- Surgery
-
00
Correct
00
Incorrect
00
:
00
:
00
Session Time
00
:
00
Average Question Time (
Secs)