मेडिसिन – Medicine MCQ
मेडिसिन – MD/MS प्रवेश
Medicine · MECEE-PG – MD/MS/MDS Entrance · ५४२ प्रश्न
५४२ प्रश्न उपलब्ध। मोड छान्नुहोस्:
मेडिसिन: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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The commonest cause of hyperthyroidism is:
सही उत्तर: घ) Graves' disease
Graves' disease, caused by TSH-receptor stimulating antibodies, accounts for most cases of hyperthyroidism.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The causative organism of scrub typhus is:
सही उत्तर: ग) Orientia tsutsugamushi
Scrub typhus is caused by Orientia tsutsugamushi, transmitted by larval trombiculid mites (chiggers).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Ring-enhancing brain lesions in an HIV-positive patient with CD4 below 100 cells/µL are most commonly due to:
सही उत्तर: क) Toxoplasma gondii
Cerebral toxoplasmosis causes multiple ring-enhancing lesions, often in the basal ganglia; primary CNS lymphoma is the main differential.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In an HIV-positive patient with CD4 count below 50 cells/µL, fever, diarrhoea, weight loss and hepatosplenomegaly with acid-fast bacilli on blood culture suggest disseminated:
सही उत्तर: ख) Mycobacterium avium complex
Disseminated MAC occurs at very low CD4 counts and causes fever, wasting, diarrhoea and hepatosplenomegaly; it grows as acid-fast bacilli in blood cultures.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Post-kala-azar dermal leishmaniasis presents as:
सही उत्तर: ग) Hypopigmented macules or nodules on the face and body after treatment of visceral leishmaniasis
PKDL appears months to years after (apparently cured) visceral leishmaniasis as macular, papular or nodular lesions, and patients act as a reservoir of infection.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Relative bradycardia (pulse–temperature dissociation) and rose spots on the trunk in a febrile patient suggest:
सही उत्तर: क) Typhoid (enteric) fever
Enteric fever classically causes a pulse slower than expected for the fever, rose spots in the second week and hepatosplenomegaly.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Hypokalaemia, metabolic alkalosis and hypercalciuria with normal blood pressure in a young patient, mimicking chronic loop diuretic use, suggest:
सही उत्तर: घ) Bartter syndrome
Bartter syndrome is a defect of the thick ascending limb (like furosemide) with hypercalciuria; Gitelman resembles thiazide use with hypocalciuria and hypomagnesaemia.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Type 4 renal tubular acidosis is characterised by:
सही उत्तर: ख) Hyperkalaemia due to hypoaldosteronism or aldosterone resistance
Type 4 RTA, common in diabetic nephropathy, results from low aldosterone or tubular resistance and causes hyperkalaemic normal anion gap acidosis.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Normal anion gap acidosis with hypokalaemia, inability to acidify urine below pH 5.5 and nephrocalcinosis suggests:
सही उत्तर: घ) Distal (type 1) renal tubular acidosis
In distal RTA, the collecting duct cannot secrete H⁺, so urine pH stays above 5.5; hypercalciuria leads to stones and nephrocalcinosis.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A patient has Na⁺ 140, Cl⁻ 100 and HCO₃⁻ 10 mmol/L. The anion gap is:
सही उत्तर: क) 30 mmol/L
Anion gap = Na⁺ − (Cl⁻ + HCO₃⁻) = 140 − (100 + 10) = 30 mmol/L, indicating a high anion gap metabolic acidosis.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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