A nurse is preparing to administer medication to a client who has a new prescription. Which of the following actions should the nurse take first?

D. Before administering any medication, the nurse should positively identify the client using at least two unique identifiers (e.g., name, date of birth, medical record number). Positive identification helps prevent medication errors and ensures that the medication is administered to the intended recipient.
A. Validating the prescription with the available medication is an important step to ensure that the correct medication is being administered. However, before doing so, it's essential to confirm the identity of the client and the correct time for administration.
B. Calculating the correct amount of medication is necessary to ensure that the client receives the appropriate dose. However, before performing this calculation, it's essential to confirm the identity of the client and the correct time for administration.
C. Documenting the time of medication administration is important for maintaining an accurate record of the client's medication administration history. However, before documenting, it's crucial to confirm the identity of the client and the correct time for administration.

A. Celecoxib is contraindicated in individuals with a history of hypersensitivity reactions, including anaphylaxis, angioedema, or urticaria, to sulfonamides. Sulfonamide antibiotics are structurally related to sulfonamide nonantibiotics, including celecoxib, and cross-sensitivity reactions may occur in some individuals.
B. Penicillin allergy is not a contraindication for celecoxib. There is no cross-reactivity between penicillin antibiotics and celecoxib, as they are different classes of medications.
C. Concurrent use of chondroitin is not a contraindication for celecoxib. Chondroitin is a dietary supplement commonly used for joint health, and there are no known interactions or contraindications between chondroitin and celecoxib.
D. Concurrent use of calcium supplements is not a contraindication for celecoxib. There are no known interactions between calcium supplements and celecoxib, and they can be safely used together if indicated.