In caring for a client with a urinary infection who is receiving antitubercular medications, what side effect must the PN be vigilant for?

When caring for a client on antitubercular medications, it is essential to monitor for potential side effects, one of which is ototoxicity, indicated by symptoms such as ringing in the ears (tinnitus). Certain antitubercular drugs, particularly streptomycin and other aminoglycosides, can adversely affect hearing and balance, making vigilance for auditory changes critical.

While rash, nausea, and headache can occur with various medications, the specific concern with antitubercular therapy is the risk of ototoxicity. This makes it paramount for the practical nurse to be attentive to any signs of hearing problems in a client receiving these treatments. Therefore, monitoring for the sensation of ringing in the ears is crucial in the ongoing assessment and safety of the patient on antitubercular medications.