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NBME 15 Answers

nbme15/Block 1/Question#19 (3.5 difficulty score)
A 65-year-old man with a history of ischemic ...
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submitted by cassdawg(547),

Ejection fraction = (EDV-ESV) / EDV

Basically it is the amount of blood they get out in a stroke, so it would be the blood in before minus the blood left after a stroke/systole, divided by the blood in before the stroke.

FA2020 p285