Cardiac output

Cardiac output
The amount of blood that is pumped by the heart per minute. The amount of blood that is put out by the left ventricle of the heart in one contraction is called the stroke volume. The stroke volume multiplied by the heart rate is the cardiac output. A normal adult's heart can easily pump 5 quarts (4.7 liters) of blood a minute. That is the cardiac output, the amount of blood the heart pumps through the circulatory system in a minute.

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cardiac out·put -'au̇t-.pu̇t n the volume of blood ejected from the left side of the heart in one minute called also minute volume

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(CO) the effective volume of blood expelled by either ventricle of the heart per unit of time (usually volume per minute); it is equal to the stroke volume multiplied by the heart rate.

Medical dictionary. 2011.

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  • cardiac output — blood volume in liters pumped by the left ventricle of the heart per minute. * * * ▪ physiology       in human physiology, volume of blood expelled by either ventricle of the heart. It is customarily expressed as minute volume, or litres of blood …   Universalium

  • cardiac output — noun the amount of blood pumped out by the ventricles in a given period of time a resting adult has a cardiac output of about three quarts a minute • Hypernyms: ↑flow, ↑flow rate, ↑rate of flow * * * blood volume in liters pumped by the left… …   Useful english dictionary

  • cardiac output curve — a graphic representation of cardiac output as a function of atrial pressure; it is a measure of the pumping ability of the heart under specific conditions. See also Starling c. and venous return c …   Medical dictionary

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  • Cardiac input — (CI) is the inverse operation of cardiac output (CO). Cardiac output implies ejection fraction. Ejection fraction is an easily understood and imaged mathematical model of systole. Ejection Fraction (EF) = End Systolic Volume (ESV) divided by End… …   Wikipedia

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  • Cardiac ventriculography — is a medical imaging test used to determine a patient s cardiac function in the right, or more typically, left ventricle. Cardiac ventriculography involves injecting contrast media into the heart s ventricle(s) to measure the volume of blood… …   Wikipedia

  • Cardiac index — (CI) is a vasodynamic parameter that relates the cardiac output (CO) to body surface area (BSA), thus relating heart performance to the size of the individual. The unit of measurement is litres per minute per square metre (l/min/m2). The index is …   Wikipedia

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