A nurse educator is orientating new nurses to a renal unit of the hospital. Which of the following teaching points should the nurse include as part of a review of normal glomerular function?
A)
"Nephrons are delicate structures that cannot endure the high pressure that exists in capillary beds elsewhere in the body."
B)
"Glomerular filtrate is very similar in composition to blood plasma found elsewhere in circulation."
C)
"Dilation of the afferent arteriole allows more blood into the nephron and increases the glomerular filtration rate."
D)
"The glomerulus is located between an arteriole and a venule that work together to regulate blood flow."
Ans:
B
Feedback:
Because filtration achieves the removal of nearly all blood proteins, the glomerular filtrate is nearly identical to plasma. Nephrons require high pressure to function, and dilation decreases the glomerular filtration rate. The glomerulus is located between two arterioles.
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