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C. M. A.
Common Medical Abbreviations
| Term | Definition |
|---|---|
| a.c. | before meals |
| a.m. | morning |
| p.m. | afternoon or evening |
| ad.lib. | as desired |
| p.r.n. | as needed |
| b.i.d. | twice a day |
| q.i.d. | four times a day |
| h. or hr. | hour |
| q.2h | every 2 hours |
| q.12h | every 12 hours |
| p.c. | after meals |
| h.s. | at bedtime |
| q.d. | once daily |
| stat | immediately |
| q.o.d. | every other day |
| t.i.d. | three times a day |
| min. | minute |
| q.h. | every hour |
| q.8h. | every 8 hours |
| u.d. | as directed |
| a.d. | right ear |
| a.s. | left ear |
| a.u. | both ears |
| IM | Intramuscular |
| inj. | injection |
| IV | Intravenous |
| IVPB | Intravenous piggyback |
| IVP | Intravenous push |
| o.d. | right eye |
| o.u. | both eyes |
| o.s. or o.l. | left eye |
| p.o. | by mouth |
| pr | per rectum |
| SL | sublingual |
| SC or SQ | subcutaneous |
| ID | intradermal |
| aq. | aqueous (water) |
| comp. | compound |
| pulv. | powder |
| supp. | suppository |
| syr. | syrup |
| tinct or tr | tincture |
| cap | capsule |
| gtt. | drop |
| sol. | solution |
| susp. | suspension |