| GOAT | Galveston Orientation and Amnesia Test |
|---|---|
| NPOS | nurses professional orientation scale |
| OI | obturator internus; occasional insomnia; opportunistic infection; opsonic index; orgasmic impairment... |
| OMC | office of managed care; orientation-memory-concentration [test] |
| OMCT | Orientation-Memory-Concentration Test |