QUICKmedicine app

ejection fraction
You have 3 open access pages left.
UK healthcare workers and students can get FREE subscriptions... click here.


Left ventricular ejection fraction is usually determined by echocardiography or radiographic ventriculography.

The ejection fraction is:

stroke volume = (end diastolic volume - end systolic volume)

ejection fraction = stroke volume / end diastolic volume

The normal range for the ejection fraction is:

  • 63-77% for males
  • 55-75% for females (reference: Measurements in Cardiology)

An average ejection fraction of 67% corresponds in an adult to 70-80 ml of blood.

The ejection fraction is a good predictor of longevity in patients with heart failure but does not correlate with symptomatic limitation.