Which of the following adverse effects should a nurse monitor for in a client receiving cisplatin?

In the context of cisplatin administration, it is important to monitor for ototoxicity, as this is a well-documented adverse effect associated with the drug. Cisplatin, a chemotherapy agent used primarily to treat various cancers, can lead to damage of the inner ear structures, resulting in hearing loss or disturbances, which are typically referred to as ototoxic effects.

While tinnitus, the perception of noise such as ringing in the ears without an external source, can occur as a symptom associated with ototoxicity, it is not the primary concern on its own when considering the broader spectrum of cisplatin's side effects. Ototoxicity encompasses both tinnitus and hearing loss, making it a key adverse effect to monitor.

Hyperkalemia and hypercalcemia are not typically associated with cisplatin, thus monitoring for these conditions is less relevant in this context. The focus should remain on the potential for ototoxicity, which highlights the need for careful hearing assessments and patient reporting during treatment with this medication.