Questions: 1 1 point Cardiac output is equal to: Stroke volume / Heart beat rate Stroke volume x Heart beat rate Heart beat rate / Stroke volume

The answer is the second one: Stroke volume x Heart beat rate.

Explanation:

• Stroke volume / Heart beat rate: This would give a value that does not represent cardiac output. It would be a measure of volume per beat divided by the number of beats, which is not meaningful in this context.
• Stroke volume x Heart beat rate: This is the correct formula for cardiac output. Cardiac output is the volume of blood the heart pumps per minute, which is calculated by multiplying the volume of blood pumped per beat (stroke volume) by the number of beats per minute (heart beat rate).
• Heart beat rate / Stroke volume: This would give a value that is the inverse of stroke volume per beat rate, which is not relevant to cardiac output.

Summary: Cardiac output is equal to Stroke volume x Heart beat rate.