While monitoring a client taking stavudine, which bodily function should be monitored closely?

Stavudine, an antiretroviral medication used in the treatment of HIV, is associated with a range of potential side effects that can impact the nervous system. One significant concern is the development of peripheral neuropathy, which can affect a patient’s gait. Monitoring the client's gait helps assess any neurological complications resulting from the medication that could lead to difficulties in movement, coordination, or balance.

While changes in appetite, level of consciousness, and blood pressure are important to monitor in patients taking various medications, they are not as directly related to the specific side effects of stavudine as gait is. Close observation of gait can provide early indications of any adverse effects that may require intervention or modification of the treatment plan.