| Abbreviation | Definition |
|---|---|
| RMO | Resident Medical Officer |
| RMP | Registered Medical Practitioner |
| RMS | Records Management System(s) |
| RMS | Royal Medical Society |
| RMT | Rehab Management Toolkit |
| RMVC | Rocky Mountain Veterinary Cardiology |
| RNA | Registered Nurse Associate |
| RNAC | Registered Nurse Assessment Coordinator |
| RNDS | Rounds |
| RNH | Royal Naval Hospital |
| RNI | Recommended Nutrient Intake |
| RNNS | Royal Naval Nursing Service |
| RNOH | Royal National Orthopaedic Hospital |
| RNSH | Royal North Shore Hospital |
| RNU | Radiology- Nuclear Medicine |
| RO | Regional Office |
| RO | Regular Observation |
| ROH | Royal Orthopaedic Hospital |
| ROHA | Registro Oncopediátrico Hospitalario Argentino |
| ROI | Release Of Information |