A 69-year-old woman with a history of coronary atherosclerosis and angina comes to the physician for fatigue and peripheral edema. Blood pressure is 140/90. End-systolic volume is 75 mL and end-diastolic volume 125 mL. Which of the following best represents ejection fraction in this patient?
37.5%
40%
55%
60%
67%
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Cut-to-the-chase Answer (0:33):
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HY USMLE Answer (2:05):