What is the volume of blood pumped by one ventricle per minute?

What is the volume of blood pumped by one ventricle per minute?

• A. Stroke Volume
• B. Cardiac Output
• C. Blood Pressure
• D. Cardiac Cycle

Answer: (B)

Cardiac output is the amount of blood the heart pumps per minute. It’s found by multiplying heart rate (beats per minute) by stroke volume (blood pumped with each beat). Since the question asks for the volume moved by one ventricle each minute, cardiac output is the correct term. For example, with a heart rate of 70 bpm and a stroke volume of about 70 mL/beat, the output is roughly 4900 mL/min (about 5 L/min). Stroke volume describes the amount per beat, not per minute; blood pressure is a measure of force, not volume per time; and the cardiac cycle is the sequence of events in one heartbeat.

Cardiac output is the amount of blood the heart pumps per minute. It’s found by multiplying heart rate (beats per minute) by stroke volume (blood pumped with each beat). Since the question asks for the volume moved by one ventricle each minute, cardiac output is the correct term. For example, with a heart rate of 70 bpm and a stroke volume of about 70 mL/beat, the output is roughly 4900 mL/min (about 5 L/min). Stroke volume describes the amount per beat, not per minute; blood pressure is a measure of force, not volume per time; and the cardiac cycle is the sequence of events in one heartbeat.