In dealing with the Cardiovascular system, what does EF stand for?

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In dealing with the Cardiovascular system, what does EF stand for?

2007-02-22 03:09:55 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Medicine

2 answers

EF stands for ejection fraction. It represents the fractional amount of end-diastolic blood volume the left ventricle is able to eject during systole. It is calculated as the stroke-volume (blood ejected from the left ventricle during systole) divided by the end-diastolic volume.

It is useful as a measure of heart performance, since people with heart disease have lower ejection fractions, which may lead to residual accumulation of blood in the left ventricle, progressing to congestive heart failure

2007-02-22 03:25:54 · answer #1 · answered by citizen insane 5 · 3⤊ 0⤋

EF ejection fraction , you should worry if result less than %60

2007-02-22 12:47:54 · answer #2 · answered by medodedo 2 · 0⤊ 0⤋