The nurse is educating a group of nursing students about cardiac output. What information should the nurse include about cardiac output?
A) Amount of blood pumped by the ventricles in 1 minute
B) Normal amount of cardiac output is between 2 and 4 L/minute
C) Volume of blood ejected with each heart beat
D) Amount of pressure or stretching force against the ventricular wall
A
Feedback:
Cardiac output (CO) is the amount of blood pumped by the ventricles in 1 minute. In the resting adult, the normal amount is between 4 and 6 L. Stroke volume (SV) is the volume of blood ejected with each heartbeat. Preload is the amount of pressure or "stretching force" against the ventricular wall at end-diastole (maximum relaxation of the heart).
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