The nurse is providing patient education for a group of nurses on the topic of chronic renal failure (CRF)
To evaluate the group's understanding, the nurse asks, "What is the greatest benefit of treatment with epoetin alfa in patients in renal failure?" The best response would be that the drug
a. replaces erythropoietin no longer produced in the proximal tubules of the kidney because of CRF.
b. neutralizes the kidneys' waste products, which destroy circulating RBCs.
c. metabolizes the hormone that interferes with RBC production.
d. increases the kidneys' excretion of substances that interfere with RBC production.
ANS: A
Erythropoietin is produced by peritubular cells in the proximal tubules of the kidney. Epoetin alfa replaces erythropoietin that is no longer produced because of CRF.
Epoetin alfa does not neutralize the kidneys' waste products.
Epoetin alfa does not metabolize the hormone that interferes with RBC production.
Epoetin alfa does not increase the kidneys' excretion of substances that interfere with RBC production.
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