| Abbreviation | Definition |
|---|---|
| TZV | Trizivir |
| U | Unit(s) |
| U | Unusual |
| U&L | Upper And Lower |
| U&MNP | Ulnar And Median Nerve Palsy |
| U/O | Under Observation for .... |
| U/S | UltraSound |
| U/WB | Unit of Whole Blood |
| UA | Umbilical Artery |
| UA | under anesthesia |
| UA | Unicystic Ameloblastoma |
| UA | Unstable Angina |
| UA | Upper Arm |
| UA | Uric Acid |
| UA | Uterine Artery |
| UA | Uterine Aspiration |
| UAC | Umbilical Artery Catheter |
| UAE | Uterine Artery Embolization |
| UAI | Unprotected Anal Intercourse |
| UAL | Ultrasonic Assisted Liposuction |