The nurse, who works in the emergency department, is aware that the renin–angiotensin–aldosterone system works to maintain blood flow in the kidneys. What vital sign would signify the initiation of this system in a trauma patient?
A) Increased temperature
B) Decreased pulse
C) Decreased blood pressure
D) Pain level of 3 on a scale of 1 to 10
C
Feedback:
The renin–angiotensin–aldosterone system is initiated in response to changes in blood volume, so that a decrease in blood pressure would be most likely to initiate this system. An increase in temperature, a decrease in pulse, and a pain level of 3 would not affect blood volume.
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