During Evaluation of a Professional Andurance Athletes, the Physician Detected

During evaluation of a professional andurance athletes, the physician detected a soft heart murmur. The patient has no medical conditions and takes no medications. Blood pressure is 106/62 mm Hg and pulse is 60/min.  Physical examination shows a soft systolic murmur best heard at the left second intercostal space in the supine position.  The murmur disappears when the patient is upright but reappears after brief exercise.  Which of the following cardiovascular adaptations best explains this patient's finding?

A) Decreased pulmonary vascular capacitance
B) Decreased vagal tone
C) Increased stroke volume
D) Increased systemic vascular resistance
E) Increased ventricular wall thickness

Correct Answer:

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Access For Free