A 23-year-old woman partakes in a cycling program. During exercise, her heart rate is 120/min and blood pressure is 135/90. Which of the following best reflects her coronary oxygen delivery at rest and during exercise?
Coronary blood flow is greatest during diastole irrespective of rest or exercise state
Coronary blood flow is greatest during systole irrespective of rest or exercise state
Coronary blood flow is greatest during systole only while exercising
Coronary blood flow is not altered by rest or exercise state because of autoregulation
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Cut-to-the-chase Answer (0:30):
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HY USMLE Answer (1:43):
