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Update your Knowledge with MKSAP 18 Q&A



MKSAP 18 Q & A

A 35-year-old woman is evaluated for exertional dyspnea of 6 months' duration. She reports no other symptoms. Medical history is unremarkable, and she takes no medications.

On physical examination, vital signs are normal. Oxygen saturation is 96% breathing ambient air. The estimated central venous pressure is elevated. Apical impulse is normal; a parasternal impulse is noted at the left sternal border. A soft systolic murmur is heard at the second left intercostal space, and a diastolic flow rumble is heard at the left sternal border. Fixed splitting of the S2 is noted throughout the cardiac cycle. The remainder of the physical examination is normal.

An electrocardiogram demonstrates right axis deviation and incomplete right bundle branch block.

Which of the following is the most likely diagnosis?

A: Atrial septal defect
B: Bicuspid aortic valve with aortic stenosis
C: Congenital pulmonary stenosis
D: Mitral stenosis

Answer and Critique

Back to the November 2018 issue of ACP International