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O-R Abbreviations
| Question | Answer |
|---|---|
| o | oral |
| O2 | Oxygen |
| OB | obstetrics |
| OD | overdose or right eye |
| OOB | out of bed |
| OR | operating room |
| OS | left eye |
| OU | both eyes |
| oz | Ounce |
| p | after |
| PC | after eating |
| PDR | physicians desk reference |
| PO | by mouth |
| PR | by rectum |
| PRN | as needed |
| PT | physical therapy |
| Pt | patient |
| Px | physical exam |
| q | every (e.g. q6h = every 6 hours) |
| qd | every day |
| qh | every hour |
| q4h, q6h.... | every 4 hours, every 6 hours etc. |
| qid | four times a day |
| qod | every other day |
| R | right, rectal temperature |
| RBC | red blood cell |
| R/O | rule out |
| ROM | range of motion |
| RR | Respiratory rate |
| Rx | Prescription |