Forensic Medicine
1 questionsA person was found dead in a swimming pool. On autopsy, his stomach and lungs were filled with water, and there was evidence of mucoid froth at the nose and mouth. What is the most likely mode of death?
FMGE 2025 - Forensic Medicine FMGE Practice Questions and MCQs
Question 511: A person was found dead in a swimming pool. On autopsy, his stomach and lungs were filled with water, and there was evidence of mucoid froth at the nose and mouth. What is the most likely mode of death?
- A. Dry drowning
- B. Cardiac arrest
- C. Near drowning
- D. Wet drowning (Correct Answer)
Explanation: ***Wet drowning***- The presence of water in the lungs and stomach confirms significant **aspiration of water**, which is the definitional characteristic of **wet drowning**.- **Mucoid froth** (or *foam*) at the nose and mouth is formed by the mixing of aspirated water, air, and pulmonary **surfactant** due to violent respiratory efforts and subsequent **pulmonary edema**.*Dry drowning*- Death is caused by sustained, irreversible **laryngospasm**, preventing water from entering the lower respiratory tract; thus, the lungs are typically congested but **dry**.- This scenario would not exhibit the volume of water in the stomach and lungs described, nor the formation of abundant pulmonary **froth**.*Near drowning*- This is a clinical term, used when a patient survives a drowning incident for at least **24 hours** after the submersion event.- It describes a **survival outcome** requiring resuscitation, not the pathological findings observed at **autopsy** for an immediate fatal drowning.*Cardiac arrest*- While cardiac arrest is the inevitable **terminal event** following the asphyxia of drowning, it is not the specific *mode* or mechanism of death described by the autopsy findings.- The findings (water in lungs/stomach, froth) specifically indicate death by **asphyxia** due to **fluid aspiration** (wet drowning).
Internal Medicine
3 questionsA patient presents with complaints of excessive thirst and increased urination of around 6–7 liters per day. He had a history of cerebral trauma one month ago. What is the most appropriate treatment?
A patient with known rheumatic heart disease is now found to have a 1–2 cm aneurysm on imaging. What is the most appropriate next step in management?
A patient with asthma on inhaled corticosteroids and LABA continues to have exacerbations. FEV1 is normal, and there is no improvement with salbutamol challenge. The symptoms worsen seasonally. Which of the following is the most appropriate next step?
FMGE 2025 - Internal Medicine FMGE Practice Questions and MCQs
Question 511: A patient presents with complaints of excessive thirst and increased urination of around 6–7 liters per day. He had a history of cerebral trauma one month ago. What is the most appropriate treatment?
- A. Hydrochlorothiazide
- B. Tolvaptan
- C. Desmopressin (Correct Answer)
- D. Insulin
Explanation: ***Desmopressin***- This clinical presentation of excessive thirst and massive polyuria (6–7 L/day) following **cerebral trauma** strongly suggests **Central Diabetes Insipidus (CDI)**, which results from inadequate production or release of **Antidiuretic Hormone (ADH)/Vasopressin** in the posterior pituitary or hypothalamus.- **Desmopressin** (DDAVP) is a synthetic ADH analog and acts as the highly effective hormone replacement therapy [1], directly addressing the underlying deficiency and drastically reducing urine output.- This causes water permeability of the collecting ducts to increase through binding of ADH to the V2 receptor, which enhances collecting duct water permeability through the insertion of aquaporin (AQP-2) channels into the luminal cell membrane [2].*Hydrochlorothiazide*- This medication is paradoxically used in the treatment of **Nephrogenic Diabetes Insipidus (NDI)**, where the renal tubules fail to respond to ADH [1].- It works by inducing mild volume depletion, which leads to increased proximal tubule reabsorption of solutes and water, thereby decreasing fluid delivery to the collecting duct.*Tolvaptan*- **Tolvaptan** is a **V2 vasopressin receptor antagonist** primarily used to promote water excretion in conditions like **SIADH** (Syndrome of Inappropriate ADH) to correct hyponatremia.- Administering an ADH antagonist in a state of ADH deficiency (Diabetes Insipidus) would be contraindicated, as it would worsen polyuria and potentially cause severe **hypernatremia**.*Insulin*- **Insulin** is the definitive treatment for **Diabetes Mellitus**, a condition characterized by high blood glucose levels and subsequent osmotic diuresis leading to polyuria.- While Diabetes Mellitus can cause polyuria, the history of recent **cerebral trauma** and the absence of expected accompanying symptoms like persistent hyperglycemia and glycosuria make CDI the far more likely diagnosis.
Question 512: A patient with known rheumatic heart disease is now found to have a 1–2 cm aneurysm on imaging. What is the most appropriate next step in management?
- A. IV antibiotics (Correct Answer)
- B. Aspirin for 3 weeks
- C. Aspirin lifelong
- D. Aspirin + Clopidogrel
Explanation: ***IV antibiotics*** - In a patient with **rheumatic heart disease (RHD)**, the finding of an aneurysm on imaging should raise strong suspicion for a **mycotic aneurysm**, especially given the increased risk of **infective endocarditis (IE)** in RHD patients [1]. - **Mycotic aneurysms** are infected arterial wall dilations that occur as a complication of IE, resulting from septic emboli or direct bacterial invasion of the vessel wall [2]. - **First-line management** consists of **prolonged IV antibiotics** (4-6 weeks) targeting the causative organism, along with close monitoring for aneurysm expansion or rupture. - Blood cultures, echocardiography, and infectious disease consultation are essential components of the workup [1]. *Aspirin lifelong* - While **aspirin** is important for long-term secondary prevention in RHD patients to reduce thromboembolic risk, it is **not the immediate priority** when an aneurysm is discovered. - In the setting of a **mycotic aneurysm**, aspirin may actually **increase bleeding risk** if the aneurysm ruptures and should be used cautiously [3]. - Long-term antiplatelet therapy would be considered after the acute infectious complication is addressed. *Aspirin + Clopidogrel* - **Dual antiplatelet therapy (DAPT)** is reserved for acute coronary syndromes or post-percutaneous coronary intervention, not for routine management of aneurysms in RHD. - In the context of a potential **mycotic aneurysm**, DAPT would significantly increase the risk of **catastrophic bleeding** without providing benefit. *Aspirin for 3 weeks* - Short-term aspirin therapy does not address the underlying pathology of a **mycotic aneurysm**, which requires targeted antimicrobial therapy. - This duration is insufficient for either treating the infection or providing adequate long-term vascular protection in RHD.
Question 513: A patient with asthma on inhaled corticosteroids and LABA continues to have exacerbations. FEV1 is normal, and there is no improvement with salbutamol challenge. The symptoms worsen seasonally. Which of the following is the most appropriate next step?
- A. Increase dose of ICS (Correct Answer)
- B. Add Omalizumab
- C. Add Theophylline
- D. Add LAMA
Explanation: ***Increase dose of ICS*** - In the stepwise management of asthma, if a patient on a low or medium-dose **inhaled corticosteroid (ICS)** and **long-acting beta-agonist (LABA)** combination continues to have poor control or exacerbations, the next appropriate step is to increase the dose of the ICS [1]. - This addresses the underlying **airway inflammation**, which is the primary driver of asthma symptoms and exacerbations, especially in a patient with seasonal worsening suggesting an allergic component. *Add LAMA* - Adding a **long-acting muscarinic antagonist (LAMA)**, such as tiotropium, is typically considered at **Step 5** of asthma management, for patients who remain symptomatic despite being on a high-dose ICS-LABA. - It is not the next step after a standard-dose ICS-LABA and should only be considered after optimizing the ICS dose [1]. *Add Theophylline* - **Theophylline** is generally considered a low-preference alternative or add-on therapy due to its **narrow therapeutic index** and significant potential for side effects (e.g., cardiotoxicity, neurotoxicity). - Modern guidelines recommend other options, such as increasing the ICS dose or adding a LAMA, before considering theophylline [1]. *Add Omalizumab* - **Omalizumab** is a biologic agent (anti-IgE) reserved for **Step 5** management of severe, persistent **allergic asthma** that is poorly controlled on high-dose ICS-LABA. - Its initiation requires confirmation of an allergic phenotype (e.g., elevated IgE levels) and is not indicated before optimizing standard controller therapies [1].
Pharmacology
5 questionsA patient with a history of peptic ulcer disease presents with arthritis and develops carditis. Which of the following is the most appropriate anti-inflammatory drug?
Which of the following is a correct triple drug regimen for the treatment of Helicobacter pylori infection?
A patient developed Achilles tendonitis and leg swelling after taking a certain antibiotic. This adverse effect is commonly associated with fluoroquinolones. What is the most likely mechanism of action of the drug involved?
A patient took a drug for migraine treatment, following which there was numbness, and his hand appeared as below. What is the possible drug that was taken?
A patient with hypertension, tachycardia and early renal involvement is prescribed an ARB (telmisartan). What is the most likely mechanism by which the drug helps improve heart rate and blood pressure?
FMGE 2025 - Pharmacology FMGE Practice Questions and MCQs
Question 511: A patient with a history of peptic ulcer disease presents with arthritis and develops carditis. Which of the following is the most appropriate anti-inflammatory drug?
- A. Diclofenac
- B. Naloxone
- C. Ibuprofen
- D. Celecoxib (Correct Answer)
Explanation: ***Celecoxib***- Celecoxib is a **selective COX-2 inhibitor**, meaning it primarily blocks the enzyme responsible for inflammation while largely preserving **COX-1** activity, which is crucial for gastric mucosal protection [2].- This selectivity significantly reduces the risk of **peptic ulcers** and gastrointestinal bleeding, making it the safest NSAID choice for patients with a history of **Peptic Ulcer Disease** (PUD) requiring treatment for arthritis and carditis [1].- **Note**: While COX-2 inhibitors carry cardiovascular risk warnings, in this clinical scenario (likely **rheumatic carditis** requiring anti-inflammatory therapy), celecoxib offers the best **risk-benefit profile** among NSAIDs by minimizing GI complications in a PUD patient [3]. Close cardiac monitoring is advised.*Ibuprofen*- Ibuprofen is a **non-selective NSAID** that inhibits both COX-1 and COX-2, leading to effective anti-inflammatory effects but also significant risk of **gastrointestinal (GI) toxicity**.- Inhibition of **COX-1** impairs the synthesis of protective mucosal prostaglandins, posing a high risk of ulcer recurrence or bleeding in patients with a PUD history [4].*Diclofenac*- Diclofenac is also a **non-selective NSAID** which carries a considerable risk of GI side effects by inhibiting **COX-1**, making it generally unsuitable for patients with pre-existing PUD.- Although sometimes exhibiting relative COX-2 preference compared to agents like naproxen, the GI risk remains high enough to warrant the use of a true COX-2 selective inhibitor like celecoxib in this high-risk patient [2].*Naloxone*- Naloxone is an **opioid receptor antagonist** used primarily to reverse the effects of opioid overdose; it has no **anti-inflammatory** properties.- This medication is completely irrelevant to the underlying inflammatory condition (arthritis and carditis) and the need for **pain and inflammation control**.
Question 512: Which of the following is a correct triple drug regimen for the treatment of Helicobacter pylori infection?
- A. Metronidazole + Omeprazole + Amoxicillin
- B. Omeprazole + Clarithromycin + Metronidazole (Correct Answer)
- C. Omeprazole + Amoxicillin + Metronidazole
- D. Metronidazole + Ciprofloxacin + Amoxicillin
Explanation: ***Omeprazole + Clarithromycin + Metronidazole*** - This is a **standard triple therapy regimen** containing **1 PPI (Omeprazole) + 2 antibiotics (Clarithromycin + Metronidazole)** - Also known as **PCM regimen**, recommended as first-line therapy for H. pylori eradication - Given for **14 days** with cure rates of 70-85% - Particularly useful in **penicillin-allergic patients** *Metronidazole + Omeprazole + Amoxicillin* - This is actually a **valid triple therapy** (PPI + Amoxicillin + Metronidazole = PAM regimen) - However, this combination is **less preferred** than clarithromycin-based regimens due to lower efficacy in areas with metronidazole resistance - Used as alternative when clarithromycin resistance is high *Omeprazole + Amoxicillin + Metronidazole* - Same as option A (PAM regimen), just reordered - Valid but **less preferred** than clarithromycin-based triple therapy *Metronidazole + Ciprofloxacin + Amoxicillin* - **Missing the PPI component** - incomplete triple therapy - Standard H. pylori triple therapy MUST include a **proton pump inhibitor** - Ciprofloxacin is not a first-line agent for H. pylori
Question 513: A patient developed Achilles tendonitis and leg swelling after taking a certain antibiotic. This adverse effect is commonly associated with fluoroquinolones. What is the most likely mechanism of action of the drug involved?
- A. Inhibition of bacterial DNA gyrase and topoisomerase IV (Correct Answer)
- B. Inhibition of bacterial cell wall synthesis
- C. Inhibition of bacterial folic acid synthesis
- D. Inhibition of bacterial protein synthesis at 50S subunit
Explanation: ***Inhibition of bacterial DNA gyrase and topoisomerase IV*** - This is the characteristic mechanism of action for **fluoroquinolones** (e.g., ciprofloxacin, levofloxacin), which disrupts bacterial DNA replication and repair, leading to cell death. - This class of antibiotics is well-known for causing **tendinopathy** and **tendon rupture**, with the **Achilles tendon** being the most commonly affected site, as described in the clinical scenario. *Inhibition of bacterial protein synthesis at 50S subunit* - This mechanism is characteristic of antibiotic classes like **macrolides** (e.g., erythromycin, azithromycin) and **lincosamides** (e.g., clindamycin). - Their common adverse effects include **gastrointestinal distress** and **QT interval prolongation** (macrolides), not tendonitis. *Inhibition of bacterial folic acid synthesis* - This is the mechanism of action for **sulfonamides** (inhibiting dihydropteroate synthase) and **trimethoprim** (inhibiting dihydrofolate reductase). - These drugs are associated with adverse effects like **hypersensitivity reactions** (including Stevens-Johnson syndrome), **photosensitivity**, and **crystalluria**, not tendon-related issues. *Inhibition of bacterial cell wall synthesis* - This mechanism is used by a broad range of antibiotics, including **beta-lactams** (penicillins, cephalosporins) and **glycopeptides** (vancomycin). - Common adverse effects associated with these drugs are **hypersensitivity reactions** (beta-lactams) and **Red Man Syndrome** or **nephrotoxicity** (vancomycin).
Question 514: A patient took a drug for migraine treatment, following which there was numbness, and his hand appeared as below. What is the possible drug that was taken?
- A. Dihydroergotamine (Correct Answer)
- B. Sumatriptan
- C. Aspirin
- D. Butorphanol
Explanation: ***Dihydroergotamine*** - Dihydroergotamine is an **ergot alkaloid** that causes potent, non-selective **vasoconstriction** of both arteries and veins. This can lead to severe peripheral ischemia, a condition known as **ergotism**. - The clinical presentation of numbness, tingling, and cold extremities, as suggested by the patient's symptoms and the appearance of the hand, is a classic manifestation of ergotamine-induced vasospasm. *Sumatriptan* - Sumatriptan is a **triptan**, which is a selective **5-HT1B/1D receptor agonist**. While it does cause vasoconstriction, its effects are more selective for **cranial arteries**. - Though it can cause paresthesias (tingling/numbness), severe peripheral ischemia leading to the signs seen in the image is a much rarer side effect compared to ergot alkaloids. *Butorphanol* - Butorphanol is an **opioid agonist-antagonist** used for pain relief. Its mechanism of action does not involve vasoconstriction. - Common side effects are related to the central nervous system, such as sedation, dizziness, and nausea, not peripheral vascular symptoms. *Aspirin* - Aspirin is a **nonsteroidal anti-inflammatory drug (NSAID)** that inhibits **cyclooxygenase (COX)** and has antiplatelet effects. It does not cause vasoconstriction. - Its primary side effects include **gastrointestinal irritation** and an increased risk of **bleeding**, which are unrelated to the patient's presentation.
Question 515: A patient with hypertension, tachycardia and early renal involvement is prescribed an ARB (telmisartan). What is the most likely mechanism by which the drug helps improve heart rate and blood pressure?
- A. By decreasing cardiac output directly
- B. By decreasing peripheral vascular resistance (Correct Answer)
- C. By directly blocking beta-1 receptors
- D. By increasing sodium excretion via loop diuretics
Explanation: ***By decreasing peripheral vascular resistance*** - ARBs (Angiotensin Receptor Blockers) like **telmisartan** selectively block AT1 receptors, preventing angiotensin II from binding - This blockade leads to **vasodilation** (reduced vasoconstriction) → decreased peripheral vascular resistance (afterload reduction) - Lower afterload reduces **blood pressure** and decreases cardiac workload, which secondarily **improves heart rate** - ARBs also provide **renoprotection** by reducing intraglomerular pressure, making them ideal for hypertension with early renal involvement *By decreasing cardiac output directly* - ARBs do not have direct negative inotropic effects on the heart - Any reduction in cardiac output is secondary to decreased afterload, not a primary mechanism *By directly blocking beta-1 receptors* - This describes the mechanism of **beta-blockers** (e.g., metoprolol, atenolol), not ARBs - Beta-blockers directly reduce heart rate and contractility; ARBs work via peripheral vasodilation *By increasing sodium excretion via loop diuretics* - This describes the mechanism of **loop diuretics** (e.g., furosemide), not ARBs - While ARBs may have mild diuretic effects, their primary mechanism is reducing peripheral vascular resistance through AT1 receptor blockade
Radiology
1 questionsA 30 year old apparently healthy man who was carrying laxatives and enema apparatus developed abdominal pain at the airport and an x-ray was done which appears as shown below. Which of the following is the likely diagnosis?
FMGE 2025 - Radiology FMGE Practice Questions and MCQs
Question 511: A 30 year old apparently healthy man who was carrying laxatives and enema apparatus developed abdominal pain at the airport and an x-ray was done which appears as shown below. Which of the following is the likely diagnosis?
- A. Pica due to anaemia
- B. Bezoar syndrome
- C. Constipation due to fecalith
- D. Body packer syndrome (Correct Answer)
Explanation: ***Body packer syndrome*** - This diagnosis is indicated by the presence of multiple, well-defined, uniformly shaped, and hyperdense foreign bodies within the gastrointestinal tract, as seen on the abdominal X-ray. - The clinical context of being at an airport with laxatives and enema apparatus is highly suggestive of an individual attempting to smuggle illicit drugs by ingesting them in packets. *Bezoar syndrome* - A **bezoar** is a mass of indigestible material (like hair or vegetable fibers) trapped in the GI tract, which appears on X-ray as a mottled, heterogeneous mass, not as multiple discrete, uniform packets. - Bezoars typically conform to the shape of the stomach or bowel lumen and lack the smooth, regular outlines seen in this image. *Pica due to anaemia* - **Pica** is the ingestion of non-nutritive substances and might show foreign objects on an X-ray, but these would typically be of varied shapes and sizes (e.g., coins, dirt, paint chips), not uniform packets. - The clinical presentation does not suggest anaemia, and the scenario points towards illegal activity rather than a compulsive eating disorder. *Constipation due to fecalith* - A **fecalith** is a hardened mass of stool that appears as a mottled density within the colon, consistent with retained feces. - The objects in the X-ray have sharp, smooth borders and a uniform density, which is inconsistent with the appearance of a fecalith.