Stroke Volume Equation

Once calculated, stroke volume is often used to calculate cardiac output. The stroke volume can also be used to determine a stroke volume index or the left ventricular ejection fraction (EF) (Bruss and Raja, 2022). However, with no further calculations, the stroke volume can be used as an assessment of cardiac function by comparing it to reference values or a patient’s previously recorded values.

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Stroke volume index is an individual’s stroke volume normalized to their body surface area (BSA) and height and gives an estimate of stroke volume relative to a person’s body size.

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This equation can be used by many healthcare practitioners, from medical students to nurses, cardiologists, or research scientists. The only prerequisites for using this equation are that the EDV and ESV are known. Further information will then be required for calculating cardiac output, i.e., heart rate.

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