Medical Definition of Cardiac index

Cardiac index: A cardiodynamic measure based on the cardiac output, which is the amount of blood the left ventricle ejects into the systemic circulation in one minute, measured in liters per minute (l/min). Cardiac output is indexed to a patient's body size by dividing by the body surface area to yield the cardiac index.

Quick GuideHeart Disease: Causes of a Heart Attack

Heart Disease: Causes of a Heart Attack

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Last Editorial Review: 1/25/2017

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