The amount of blood pumped out by each ventricle per minute is called cardiac output(CO).
It is a product of heart rate (HR) and stroke volume (SV). Heart rate or pulse is the number of beats per minute.
Pulse pressure = systolic pressure – diastolic pressure.
Stroke volume (SV) is the volume of blood pumped out by one ventricle with each beat. SV depends on ventricular contraction.
CO = HR x SV
SV represents the difference between EDV (amount of blood that collects in a ventricle during diastole) and ESV (volume of blood remaining in the ventricle after contraction).
SV = EDV – ESV
