Which right ensures that the medication administered matches what was ordered?

The "Right drug" is a critical component of medication administration that ensures the medication given to a patient is exactly what was prescribed. This aspect of medication safety focuses on correctly identifying and administering the specific drug indicated in the order, without substitutions or errors. Adhering to this right helps prevent medication errors that could potentially lead to adverse reactions or ineffective treatment.

In the context of medication administration, ensuring the correct drug is provided involves verification processes, such as checking the medication label against the medical order and being aware of any potential look-alike or sound-alike medications that could lead to confusion. This step is essential in promoting patient safety and effective healthcare delivery, as the effectiveness of the treatment plan heavily relies on the proper medication being used.

Other options, while also important aspects of medication safety, do not specifically address the direct match between the administered medication and the physician's order. Proper documentation, patient identification, and timing also play significant roles in preventing errors, but they serve different purposes in the overall medication administration process.