Question

Find out the cardiac output, if heart rate is 75 times/min. EDV(End diastolic volume) = 150 ml and ESV(End systolic volume) = 60 ml.

• A. 6750 ml
• B. 6000 ml
• C. 4500 ml
• D. 11250 ml

Answer 1

The correct option is A 6750 ml

The cardiac output is the amount of blood pumped by the heart in one minute. Cardiac output (CO)is the product of the heart rate (HR) and the stroke volume (SV), which is the volume of blood pumped from the ventricle per beat;

Thus, CO = HR × SV. where SV=EDV-ESV.

By substituting the given values.CO=75 × (150-60) =75 × 90 = 6750 ml.

So, the correct answer is '6750 ml '.