Clinical Attribute
cardiac output
[ kahr-dee-ak out-poo t ]
Subclass of:
Heart Function Tests; Hemodynamics
Definitions related to cardiac output:
  • The amount of blood the heart is able to pump into circulation; specifically measured as the amount of blood the left side of the heart can pump in one minute.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • The total volume of blood pumped by the heart over a set period of time, conventionally one minute; it is calculated as heart rate times stroke volume (CO= HR x SV), and is additionally dependent on preload and afterload for functional output.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • The volume of BLOOD passing through the HEART per unit of time. It is usually expressed as liters (volume) per minute so as not to be confused with STROKE VOLUME (volume per beat).
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • Volume of blood passing through the heart per unit of time; expressed as liters (volume) per minute so as not to be confused with stroke volume (volume per beat).
    CRISP Thesaurus
    National Institutes of Health, 2006
  • Cardiac output, in human physiology, volume of blood expelled by either ventricle of the heart. It is customarily expressed as minute volume, or litres of blood per minute, calculated as the product of stroke volume (output of either ventricle per heartbeat) and the number of beats per minute.
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2020
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