A nurse enters a client's room to perform a focused assessment. Which of the following client information should the nurse use to properly identify the client?

Rationale A. Telephone number: Using the client’s unique identifiers, such as name and date of birth, is standard practice, but if multiple identifiers are required, asking the client to confirm information like a telephone number helps ensure correct identification. Proper identification prevents errors in assessment, medication administration, and procedures. B. Diagnosis: A client’s diagnosis does not uniquely identify them because multiple clients may share the same condition. Relying on diagnosis alone could lead to misidentification and errors in care. C. Provider's name: The healthcare provider’s name is not a reliable client identifier. Multiple clients may be under the care of the same provider, so using this information cannot ensure the correct patient is being assessed. D. Room number: Room numbers are temporary and can change; several clients may share a room at different times. Using room number alone is insufficient to confirm identity and does not meet safety standards for patient identification.