A patient is using a high-concentration keratolytic agent containing salicylic acid to remove warts. What will the nurse teach this patient?
a. Peeling and drying are desired effects of this drug.
b. Systemic effects may occur with this medication.
c. Tinnitus is a common side effect of little concern.
d. Tissue injury is unlikely at this dose.
ANS: B
Salicylic acid is readily absorbed through the skin, and systemic toxicity can result. Peeling and drying are not desired effects of salicylic acid. Tinnitus is a symptom of systemic toxicity. Tissue injury is likely in any concentration above 6%.
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