Cardiac output (
CO, also denoted by the symbols
![](http://info.babylon.com/onlinebox.cgi?rt=GetFile&uri=!!ARV6FUJ2JP&type=0&index=2547)
and
![](http://info.babylon.com/onlinebox.cgi?rt=GetFile&uri=!!ARV6FUJ2JP&type=0&index=1182)
), is a term used in
cardiac physiology that describes the volume of blood being pumped by the
heart, in particular by a left or right
ventricle, per unit time. CO values can be represented using many
physical units, such as
dm3/min and L/min..