Which of the following actions is considered an administration error?

Providing the wrong medication to a patient is considered an administration error because it directly involves the act of giving a specific medication that was not intended for that patient. Administration errors can result from a misunderstanding of the patient's needs or instructions but ultimately lead to a situation where the patient receives a substance that may not be safe or effective for their condition. This can have serious implications for patient safety and treatment outcomes.

The other actions, while serious and potentially detrimental, do not fit the definition of administration errors as precisely. Not checking the patient’s medication order pertains more to the processes of verification and preparedness prior to administration. Incorrectly documenting a medication given relates to record-keeping practices, which are crucial for follow-up care but not the actual act of administration. Failing to assess a patient post-medication involves the necessary monitoring and evaluation after medication is administered, which is important for patient safety but again does not fall under the direct act of giving the wrong medication.