Question

In a typical heart, if EDV is 120 ml and ESV is 50 ml, the stroke volume (SV) is

• A. 120 - 50 = 70 ml
• B. 120 $\times$ 50 = 6000 ml
• C. 120 + 50 = 170 ml
• D. 120 % 50 = 2.4 ml.

Answer 1

The correct option is A 120 - 50 = 70 ml

The EDV is filled volume of the ventricular of the ventricle prior to contraction and the ESV is the residual volume of blood remaining in the ventricle after ejection. The difference in EDV and ESV represents SV. So if EDV is 120ml and ESV is 50ml then, stroke volume is 120-50=70ml.

So the correct answer is '120 - 50 = 70ml'.