Calculate the ejection fraction of a female patient with a stroke volume of 40 mL and an end-diastolic volume of 125 mL
a. 0.32
b. 3.1
c. 85
d. 165
ANS: A
Ejection fraction is calculated using the ratio of stroke volume to the ventricular end-diastolic volume. In this case the ejection fraction is 40 mL/125 mL = 0.32.
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