Question

Suppose a person is found to have a resting cardiac output of $5.0$ litres per minute and a heart rate of $50$ beats per minute. Calculate the stroke volume.

• A. $1000\text{mL}$
• B. $10\text{mL}$
• C. $250\text{mL}$
• D. $100\text{mL}$

Answer 1

The correct option is D $100\text{mL}$

Answer (2)
Cardiac output
= Stroke volume (SV)$\times$ Heart rate (HR)
$5L=SV\times 50$
$\frac{5000\text{mL}}{50}=$ Stroke volume
$\therefore$ Stroke volume $=100\text{mL}$