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Prescription Abbr.
| Term | Definition |
|---|---|
| aa (ana) | of each |
| ac (ante cibum) | before meals |
| ad lib | as desired |
| agit | shake, stir |
| amp | ampule |
| AD (auris dextra) | right ear |
| AS (auris sinistra) | left ear |
| ASA | aspirin |
| AU (auris utraque) | both ears |
| aq (aqua) | water |
| bid/BID (bis in die) | twice a day |
| C | cup or celcius |
| c with a line over it | with |
| cap | capsule |
| CC | chief complaint |
| cc | cubic centimeter |
| cm | centimeter |
| c/o | complaining of |
| D/C | discharge or discontinue |
| Dx | diagnosis |
| dil | dilute |
| disp | dispense |
| dr | dram |
| EENT | eye, ear, nose, throat |
| ext | extract |
| F | fahrenheit |
| FE | iron |
| fl | fluid |
| fx | fracture |
| gal | gallon |
| gm | gram |
| gr | grain |
| gtt | drops |
| h/hr | hour |
| hs (hora somni) | at bedtime |
| HTN | hypertension |
| Hx | history |
| inj | injection |
| ID | intradermal |
| IM | intramuscular |
| IV | intravenous |
| K | potassium |
| kg | kilogram |
| KVO | keep vein open |
| L | liter |
| lb | pound |
| mcg | microgram |
| med | medicine |
| meq | milliequivalent |
| mg | milligram |
| mL | milliliter |
| MLD | minimum lethal dose |
| mn | midnight |
| MO | mineral oil |
| MOM | milk of magnesia |
| MS | morphine sulfate |
| MTD | maximum tolerated dose |
| NKA | no known allergies |
| noct | at night |
| NPO (nil per os) | nothing by mouth |
| NS | normal saline |
| N/V | nausea/vomiting |
| OD (oculus dexter) | right eye |
| OS (oculus sinister) | left eye |
| OU (oculus uterque) | both eyes |
| OTC | over-the-counter |
| oz | ounce |
| pc (post cibum) | after meals |
| PL | placebo |
| pm (post meridiem) | afternoon |
| PMI | patient medication instruction |
| po (per os) | by mouth |
| pr | by rectum |
| prn (pro re nata) | as needed |
| pt | patient |
| pulv | powder |
| qh (quaque hora) | every hour |
| q2h | every two hours |
| qid/QID (quarter in die) | four times a day |
| qm | every morning |
| qn | every night |
| qod | every other day |
| qs | quantity sufficient |
| qt | quart |
| Rx | take |
| r/o | rule out |
| S/Sig | give the following directions |
| s with a line over it | without |
| SC/SQ/subQ | subcutaneous |
| SOB | shortness of breath |
| stat/STAT | immediately |
| supp | suppository |
| T | tablespoon |
| tsp | teaspoon |
| tab/TAB | tablet |
| tid/TID (ter in die) | three times a day |
| TO | telephone order |
| tus | cough |
| ung (unguentum) | ointment |
| vag | vaginally |
| ves (vesica) | bladder |
| VO | verbal order |
| VS | vital signs |
| W/O | water in oil |
| WNL | within normal limits |
| x | times |
| y/o | years old |
| ut dict (ut dictum) ud/UD | as directed |
| a (ante) | before |
| ad | as desired |
| p (post) | after |
| per | by |
| q (quaque) | every |
| qd (quaque die) | every day |
| qhs (quaque hora somni) | every bedtime |
| SL | sublingual |
| top/TOP | topical |
| U | unit |
| w/W | week |