Case Background

A thirty-five year old man comes to your office with progressive dyspnea over the last year. He vaguely recalls a murmur being heard in the past. His heart rate is 60 bpm and his blood pressure is 150/60 mmHg. You listen at the mid left sternal edge with firm pressure on the diaphragm.



Choose the best description of the murmur at the mid left sternal edge: