Valvular Heart Disease USMLE Step 1 Practice Question
A 35-year-old woman with childhood rheumatic fever presents with palpitations and progressive dyspnea. Vital signs show HR 110/min, BP 118/76 mmHg, RR 20/min, SpO2 94% on room air. Physical examination reveals an opening snap followed by a low-pitched apical diastolic murmur; no systolic murmur appreciated. ECG demonstrates atrial fibrillation. Transthoracic echocardiography shows a doming mitral valve with reduced leaflet mobility and a mitral valve area of 1.2 cm². Which of the following is the most likely diagnosis?
Answer choices
- AMitral stenosisCorrect answer
- BTricuspid stenosis
- CAortic stenosis
- DAortic regurgitation
- EMitral regurgitation
- FPulmonary stenosis
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