Question

a nurse is caring for a client who is about to begin receiving acyclovir iv to treat a viral infection. the nurse should recognize that cautious use of the medication is essential if the client also has which of the following conditions?
heart failure
dehydration
asthma
tinnitus

Explanation:

Acyclovir is primarily excreted by the kidneys. Dehydration reduces renal blood flow and impairs kidney function, which can lead to increased acyclovir levels in the body, raising the risk of nephrotoxicity. The other conditions listed do not require cautious use of acyclovir as directly as dehydration does.

Answer:

B. Dehydration