<prompt> Regarding calculation of stroke volume, NOT true isSV EF x EDVSV EF x COSV CO HRNone of the above  <response>: Ans: b SV EF x CO Ref: Ganong 22nd edp.570, 571Stroke volume S V Amount of blood pumped out of each ventricle per heart beat 70ml approxEjection fraction EF the percent of end diastolic ventricular volume that is ejected with each stroke or beat. Stroke volume is the volume ejected per beat and EDV is the volume present in the ventricle at the end of diastole. So, the of volume ejected EF,EF SV---EDVx 100 65 approx.Cardiac output CO volume of blood pumped out of heart per unit time.CO SV x HR 5Lmin approx.Cardiac index Cl the output per minute per square metre of body surface.Cl CO---BSA 3.2Lminm2BSA Body surface area 