<prompt> Cardiac output depends on all of the following except: September 2005Cardiac rateBody surface areaStroke volumeCardiac contractility  <response>: Ans. B: Body surface area Cardiac Output CO Stroke Volume x Hea Rate Normal SV is 70 mL and hence in a supine, resting man CO is 5.0 L min. 70 mLX 72 beatsmin. Cardiac Index CI CO Body Surface Area BSA SV x HRBSA CI averages 3.2L 