The nurse recognizes blood pressure is determined by three elements including what?
A) Peripheral resistance
B) Pulse pressure
C) Renal blood flow
D) Preload
A
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The pressure in the cardiovascular system is determined by three elements: heart rate, stroke volume, and peripheral resistance. The small arterioles are thought to be the most important factors in determining peripheral resistance. Because they have the smallest diameter, they are able to almost stop blood flow into capillary beds when they constrict, building up tremendous pressure in the arteries behind them as they prevent the blood from flowing through.
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