Author Question: A nurse working on a gerontology unit notes that the majority of the clients on the unit are ... (Read 70 times)

arivle123 · **on:** Jun 25, 2018

A nurse working on a gerontology unit notes that the majority of the clients on the unit are prescribed antihypertensive medications.

When it comes to the aging process, which of the following phenomena are primarily the contributing factors to hypertension in the elderly population? Select all that apply.
A)
Stiffening of large arteries like the aorta
B)
Increased sensitivity of the renin-angiotensin-aldosterone system
C)
Decreased baroreceptor sensitivity and renal blood flow
D)
Increased peripheral vascular resistance
E)
Increase in renal perfusion

Question 2

When trying to explain to a new dialysis patient the movement of substances through the capillary pores,

the nurse will explain that in the kidneys, the glomerular capillaries have
A)
no capillary openings since this would lead to extensive hemorrhage.
B)
small openings that allow large amounts of smaller molecular substances to filter through the glomeruli.
C)
large pores so that substances can pass easily through the capillary wall.
D)
endothelial cells that are joined by tight junctions that form a barrier to medication filtration.

shailee · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

Ans:
A, C, D

Feedback:

Increased sensitivity of the renin-angiotensin-aldosterone system is not a noted phenomenon among older adults. Stiffening of large arteries, increased peripheral vascular resistance, and decreased baroreceptor sensitivity and renal blood flow are all accompaniments of aging.

Answer to Question 2

Ans:
B

Feedback:

The glomerular capillaries in the kidneys have small openings called fenestrations that pass directly through the middle of the endothelial cells. These allow large amounts of small molecular and ionic substances to filter through the glomeruli without having to pass through the clefts between the endothelial cells.