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General Medicine · Cardiology: mitral stenosis
Sample itemA patient with rheumatic heart disease has exertional dyspnea, hemoptysis, atrial fibrillation, and an opening snap followed by a mid-diastolic murmur at the apex. What valve lesion is present?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Mitral stenosis
Mitral stenosis obstructs left-atrial emptying, producing an opening snap and low-pitched diastolic rumble at the apex. It predisposes to left-atrial enlargement, atrial fibrillation, and pulmonary hypertension.
Option by option
A. Mitral regurgitation
Mitral regurgitation causes a pansystolic apical murmur radiating to the axilla.
B. Tricuspid regurgitation
Tricuspid regurgitation is a pansystolic murmur louder with inspiration.
C. Mitral stenosis (correct)
Correct. The opening snap and apical diastolic murmur are classic mitral stenosis findings.
D. Aortic stenosis
Aortic stenosis produces an ejection systolic murmur radiating to the carotids.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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