Question

Minute cardiac output is indirectly proportional to?

• A. Venous return
• B. Force of ventricular contraction
• C. Sympathetic stimulus
• D. Peripheral resistance

Answer 1

The correct option is D Peripheral resistance

Minimum cardiac output is a term used in cardiac physiology that describes the volume of blood being pumped by the heart, in particular by the left or right ventricle, per unit time. Cardiac output is the product of the heart rate (HR), or the number of heart beats per minute (bpm), and the stroke volume (SV), which is the volume of blood pumped from the ventricle per beat; thus, CO = HR × SV. Values for cardiac output are usually denoted as L/min. It is indirectly proportional to peripheral resistance.

So, the correct option is 'peripheral resistance'.