Final answer:
The nurse should identify sulfonamides, including sulfamethoxazole-trimethoprim, as contraindicated for a client with a history of Stevens-Johnson syndrome.
Step-by-step explanation:
Stevens-Johnson syndrome is a severe allergic reaction that can occur in response to certain medications, including sulfamethoxazole-trimethoprim. When reviewing the medication administration record of a client with a history of Stevens-Johnson syndrome, the nurse should identify sulfonamides as contraindicated for this client, including sulfamethoxazole-trimethoprim. Sulfonamides are a group of medications that contain the sulfonamide group, and they can cause hypersensitivity reactions in individuals with a history of Stevens-Johnson syndrome.