Certified Emergency Nurse (CEN) Practice Test 2025 - Free CEN Practice Questions and Study Guide

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Question: 1 / 400

What does stroke volume refer to?

The total blood flow through the body

The volume of blood ejected per minute

The amount of blood ejected from the left ventricle with each contraction

Stroke volume specifically refers to the amount of blood that is ejected from the left ventricle with each contraction of the heart. It is a key factor in determining cardiac output, which is the total volume of blood pumped by the heart per minute. This measure is crucial in understanding heart function and overall cardiovascular health.

The left ventricle plays a critical role in systemic circulation, and the volume of blood it ejects directly influences how effectively the body receives oxygen and nutrients. Stroke volume can be affected by various physiological factors including heart rate, contractility, and preload. Thus, option C precisely captures the essence of what stroke volume represents in the context of cardiac function.

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The amount of blood passive filling the ventricles

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