| Abbreviation | Definition |
|---|---|
| GRP | Gastrin Releasing Protein |
| GRR | Granule For Reconstitution |
| GSC | Glandular Stress Complex |
| GSH | Glucocorticoid-Suppressible Hyperaldosteronism |
| GSR | Galvanized Skin Response |
| GSW | GunShot Wound |
| GT | Gait Training |
| GT | Glucose Tolerance |
| GTCS | Generalized Tonic-Clonic Seizures |
| GTF | Glucose Tolerance Factor |
| GTM | Gratuitous Tactile Moments |
| GTO | Golgi Tendon Organs |
| GTS | Green Tobacco Sickness |
| GTTS | Drops per minute |
| GU | Gastric ulcer |
| GU | Genitourinary |
| GUD | Genital Ulcer Disease |
| GV | Granulosis Virus |
| GVED | Gastric Vagal Efferent Discharge |
| GW | Getting Well |