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.