A nurse is discussing the pressure generated at the end of diastole. Which term is the nurse de-scribing?
a. Preload
b. Afterload
c. Systemic vascular resistance
d. Total peripheral resistance
ANS: A
Preload, not afterload, is the volume and associated pressure generated in the ventricle at the end of diastole. Afterload is the resistance to ejection of blood from the left ventricle.
Systemic vascular resistance is related to afterload. Total peripheral resistance increases afterload.
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