| Abbreviation | Definition |
|---|---|
| RHC | Respiration Has Ceased |
| RHD | Right Hand |
| RHE | Reproductive Health Externship Program |
| RHF | Right-sided Heart Failure |
| RHG | Reactive HypoGlycemia |
| RHL | Recurrent Herpes Labialis |
| RHO | Reproductive Health Outlook |
| RHP | Rural Hospital Program |
| RHR | Resting Heart Rate |
| RHS | Right Hand Side |
| RI | Recurrence Interval |
| RI | Renal Insufficiency |
| RI | Respiratory Illness |
| RI | Respiratory Infection |
| RIBA | Recombinant InnumoBlot Assay |
| RIBP | Radiation-Induced Brachial Plexopath |
| RIC | Right Iliac Crest |
| RICACID | Ricinoleic Acid |
| RICE | Radical Injuries Cause Euphoria |
| RICED | Rest, Ice, Compression, Elevate, Diagnosis |