The body's response to sudden hypotension may include
A)dilation of arterioles.
B)constriction of veins and arterioles.
C)decreased heart rate.
D)renal excretion of water.

Question

Quizplus · Accepted Answer

When confronted with sudden hypotension, the body's response is to increase blood pressure to maintain adequate perfusion of vital organs. This is achieved through the constriction of veins and arterioles, which increases vascular resistance and raises blood pressure. Dilation of arterioles would actually cause a further drop in blood pressure, making it an incorrect choice. Decreased heart rate may be a part of the response, but it is not the primary mechanism for increasing blood pressure. Renal excretion of water may be a response to long-term blood pressure regulation, but it is not the immediate response to sudden hypotension.

The Body's Response to Sudden Hypotension May Include