When observing a path of medication in a MAR, which abbreviation indicates a medication is to be taken three times a day?

The abbreviation that indicates a medication is to be taken three times a day is TID, which stands for "ter in die," a Latin phrase meaning "three times a day." This is a standard notation frequently found in medication administration records (MAR) and is important for managing dosage schedules effectively.

In contrast, BID stands for "bis in die," which means "twice a day," so it is not applicable for a medication schedule requiring three doses. QID, meaning "quater in die," refers to taking a medication four times a day, and P.R.N. stands for "pro re nata," indicating that a medication is to be taken as needed, rather than on a set schedule. Understanding these abbreviations is essential for the safe and correct administration of medications.