Review Question - QID 109653

A 20-year-old man presents to the emergency department after he fainted during a competition. This is the 2nd time this has happened since the patient joined the track team. The patient has a medical history of multiple episodes of streptococcal pharyngitis which were not treated in his youth. He is not currently on any medications. He is agreeable and not currently in any distress. His temperature is 99.5°F (37.5°C), blood pressure is 132/68 mmHg, pulse is 90/min, respirations are 12/min, and oxygen saturation is 98% on room air. The patient is in no current distress. A neurological exam is within normal limits. A pulmonary exam reveals clear air movement bilaterally. A cardiac exam reveals a systolic murmur best heard at the lower left sternal border. Abdominal exam reveals a soft abdomen that is non-tender in all 4 quadrants. The patient's cardiac exam is repeated while he squats. Which of the following is the most likely result for this patient?