When stroke volume decreases,which of the following could maintain cardiac output?

Question

Quizplus · Accepted Answer

When stroke volume decreases, the only option that could potentially maintain cardiac output is an increase in heart rate. This is because cardiac output is calculated by multiplying stroke volume by heart rate, so if stroke volume decreases, the only way to compensate is to increase heart rate. Decreased peripheral resistance and general vasodilation would result in decreased blood pressure, while decreased venous return would result in decreased preload and ultimately decrease cardiac output.

When Stroke Volume Decreases,which of the Following Could Maintain Cardiac