So another helpful measurement is the ejection fraction, which is the stroke volume divided by the end-diastolic volume, Ejection fraction = Stroke Volume / End- Diastolic Volume. In a normal individual that's 70/120, or about 58%, but it can fluctuate between 50 and 65% and still be considered normal.

What is meant by stroke volume?

The definition of stroke volume is the volume of blood pumped out of the left ventricle of the heart during each systolic cardiac contraction.

Are ejection fraction and cardiac output related?

C and D represent cardiac remodeling in HF with decreases in myocardial contractility and in both SV and EF.