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NREMT Advanced EMT

Category - Cardiology

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What is the proper term for the amount of resistance against which the heart must pump?

Afterload
Preload
Contractile force
Stroke rate

Explanation

Answer - A - Afterload is the proper term for the amount of resistance against in which the heart must pump. The heart must overcome this resistance in order eject blood. Afterload is determined by the degree of peripheral vascular resistance. Peripheral resistance is determined by the degree of vasoconstriction present on the arterial side.

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