A client diagnosed with rheumatic disease is being prescribed salicylate therapy. The nurse should teach the client to monitor himself or herself for which adverse effects?

A. Ringing in the ears: Tinnitus, or ringing in the ears, is an early sign of salicylate toxicity, especially when taken in high doses for conditions like rheumatic disease. Clients should be taught to report this symptom promptly, as it may indicate the need for dosage adjustment. B. Visual changes: Visual disturbances are not commonly associated with salicylate use. If present, they may be due to other causes and should still be evaluated, but they are not typical adverse effects of this class of medication. C. Irritation of oral mucosa: Salicylates are more likely to irritate the gastrointestinal tract, not the oral mucosa. Stomach upset, nausea, or ulcers may occur, but mouth irritation is not a typical concern unless taken in unusual forms or dosages. D. Increased hair growth: Hirsutism is not a known side effect of salicylates. This symptom is more commonly associated with hormonal imbalances or specific medications like corticosteroids or anticonvulsants, not aspirin or related drugs.