EF is the abbreviation for Ejection Fraction. That translates to the amount of blood that makes makes it out of the valve per heart contraction. Some will always fall backwards as the heart wall moves backward and draws the valve closed. This percentage is well within the normal range.
Answered 5/19/2023
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Ejection fraction is the percent of blood volume pumped out of the heart with each beat. 67% is well in the normal range
Answered 5/20/2023
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