PR is the abbreviation used for which anatomical route?

PR is the abbreviation used for which anatomical route?

• A. Per rectum
• B. Rectal route
• C. Post-rectal
• D. Rectum or rectal route

Answer: (D)

PR denotes administration through the rectum, i.e., the rectal route. This route is used for suppositories or certain liquids and is chosen when swallowing isn’t possible or when avoiding first-pass metabolism is desired. The best choice names both the anatomical site and the route—the rectum or rectal route—so it clearly communicates that the medication is given via the rectum. While “per rectum” reflects the origin of the abbreviation, specifying the rectum or rectal route directly conveys how the drug is administered.

PR denotes administration through the rectum, i.e., the rectal route. This route is used for suppositories or certain liquids and is chosen when swallowing isn’t possible or when avoiding first-pass metabolism is desired. The best choice names both the anatomical site and the route—the rectum or rectal route—so it clearly communicates that the medication is given via the rectum. While “per rectum” reflects the origin of the abbreviation, specifying the rectum or rectal route directly conveys how the drug is administered.