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PHM 311 1.8
Dose and Dosing Frequency Abbr. used in the Signa
| Term | Meaning |
|---|---|
| prn | as occasion arises, use when or as needed |
| a. | before |
| a.c. | before meals |
| a.m. | morning, before midday |
| h. | hour |
| hold | Do not give specific dose |
| d. | day |
| q. | every |
| q4h | every 4 hours, also symbolized by the degrees symbol |
| q.d. | every day |
| q.o.d. | every other day |
| bid | twice a day |
| tid | three times a day |
| qid | four times a day |
| t.i.w. | three times a week |
| h.s., hs | at bed time |
| ATC | around the clock |
| m^2, M^2 | square meter |
| BSA | body surface area |
| p. | after |
| p.c. | after meals |
| p.m. | evening |
| noct. | night |
| STAT | immediately |
| s.o.s. | if there is need |
| c with a line overtop | with |