Author Question: As adults age, the walls of their arterioles become less elastic, increasing resistance and ... (Read 216 times)

vinney12 · **on:** Jul 23, 2018

As adults age, the walls of their arterioles become less elastic, increasing resistance and decreasing compliance. How does this affect the blood pressure?

A) The blood pressure does not change.
B) The blood pressure is erratic.
C) The blood pressure decreases.
D) The blood pressure increases.

Question 2

A hospital unit has a policy that rectal temperatures may not be taken on clients who have had cardiac surgery. What rationale supports this policy?

A) It is an embarrassing and painful assessment.
B) Thermometer insertion stimulates the vagus nerve.
C) It is less expensive to take oral temperatures.
D) It is to avoid perforating the wall of the rectum.

Jevvish · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

Ans: D
The elasticity and resistance of the walls of the arterioles help to maintain normal blood pressure. With aging, the walls of arterioles become less elastic, which interferes with their ability to stretch and dilate, contributing to a rising pressure within the vascular system. This is reflected in an increased blood pressure.

Answer to Question 2

Ans: B
Because inserting the thermometer into the rectum can slow the heart rate by stimulating the vagus nerve, assessing a rectal temperature may not be allowed for clients after cardiac surgery.