<prompt> If a person has a hea rate of 70 beatsmin, a left ventricular end diastolic volume of 100 ml, and an ejectionfraction of 0.50, then the cardiac output is3.0 liters min3.5 liters min4.0 litersmin4.5 liters min  <response>: Cardiac output hea rate x stroke volume. The ejection fraction stroke volumeleft ventricular end- diastolic volume LVEDV. Therefore, stroke volume ejection fraction x L VEDV, or 0.50 x 100 ml 50 nit Cardiac output 50 ml x 70 beatsmm 3500 mIminute, or 3.5 litersmm. 