What must be documented every time a medication is administered?

The correct answer emphasizes the importance of thorough documentation in medication administration. When a medication is administered, it is crucial to record not only the medication's name and dosage but also the time and route of administration and the patient's response. This comprehensive documentation serves multiple purposes: it ensures patient safety by allowing healthcare providers to monitor for efficacy and adverse reactions, facilitates continuity of care by providing clear communication among healthcare team members, and meets legal and regulatory requirements for medication administration.

Accurate documentation is vital for establishing a medication history, enabling healthcare practitioners to assess potential interactions with other medications and to evaluate the patient’s progress and response to treatment over time. This complete record is essential for safe and effective healthcare management, helping to prevent medication errors and ensuring accountability.

The other options lack completeness that is critical for effective medication management and patient safety. For instance, only documenting the medication name and dosage does not provide enough context about how the medication was given or how the patient is responding, which are key elements to ensure appropriate care.