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Abbreviations
Page 4
| Term | Definition |
|---|---|
| NPO | nothing by mouth |
| NS | normal saline |
| O2 | oxygen |
| OB | obstetrics |
| OD | right eye (no longer in use) |
| OP | out-patient |
| OR | operating room |
| OS | left eye (no longer in use) |
| os | mouth |
| OT | occupational therapy |
| OTC | over the counter |
| OU | both eyes (no longer in use) |
| oz | ounce |
| p | after |
| pc | after meals |
| PCXR | portable chest xray |
| PDR | physician's desk reference |