A nurse is assessing a client who is taking aspirin and reports having tinnitus. Which of the following medications should the nurse expect to administer?

A. Protamine sulfate: Protamine sulfate is an antidote for heparin overdose, not for aspirin toxicity. It does not address salicylate-related symptoms such as tinnitus. B. Diphenhydramine: Diphenhydramine is an antihistamine used for allergic reactions and motion sickness. It does not counteract aspirin toxicity or reduce salicylate levels. C. Bicarbonate: Sodium bicarbonate is used in cases of aspirin (salicylate) toxicity to alkalinize the urine, which enhances the renal excretion of salicylates. This intervention helps reduce systemic toxicity, including symptoms like tinnitus. D. Naloxone: Naloxone is an opioid antagonist used for opioid overdose. It has no effect on aspirin toxicity or salicylate-induced symptoms.