What does the abbreviation pr signify in medication administration?

The abbreviation "pr" in medication administration signifies "per rectum." This term is used to indicate that a medication is to be administered via the rectum, which is a common route for certain types of medications, such as suppositories or enemas. Administering medication through this route can be particularly beneficial for patients who are unable to take medications orally due to nausea, vomiting, or other contraindications.

The rectal route allows for systemic absorption of the medication without passing through the digestive system, providing a quicker onset of action in some cases. Additionally, some medications may be specifically formulated for rectal administration in order to achieve effective therapeutic levels. Understanding the various routes of medication administration, including "pr," is critical for medication aides, as it impacts patient care and treatment efficacy.