Heart Failure USMLE Step 1 Practice Question
A 7-year-old girl presents for evaluation of an incidental systolic murmur discovered on routine physical examination. She reports normal exercise tolerance and denies dyspnea or chest pain. Vital signs: BP 110/68 mmHg, HR 92 bpm, RR 18/min, SpO2 98% on room air. Physical examination reveals a systolic ejection murmur at the left upper sternal border with fixed split S2. Chest X-ray shows normal cardiac silhouette. She takes no medications. There is no cyanosis or digital clubbing noted. Which diagnosis best explains these findings?
Answer choices
- AVentricular septal defect
- BAtrial septal defectCorrect answer
- CTetralogy of Fallot
- DCoarctation of the aorta
- EPatent ductus arteriosus
- FPulmonary stenosis
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