A 13-year-old boy is brought to emergency by his mom because of jerking movements of his feet for the past 24 hours. Vitals are: temperature 98.6 F, HR 68, RR 15, BP 110/60. ECG shows no abnormalities. Echocardiography shows mild left atrial dilatation. Left ventricular architecture is normal and without enlargement. Ejection fraction is 65%. The patient’s legs are shown.
Which of the following is most likely to be auscultated in this patient?
2/6 holo-systolic murmur at left sternal border
2/6 mid-systolic murmur at 4th intercostal space left mid-clavicular line
3/6 decrescendo diastolic murmur at 2nd intercostal space left sternal border
4/6 to-and-fro murmur at left and right sternal borders
Fixed splitting of S2
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Cut-to-the-chase Answer (1:02):
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HY USMLE Answer (10:13):
