Browse Medical Abbreviations
U
| U | unit(s); urine; uracil |
| U a | unit a |
| U&E | urea and electrolytes |
| U-100 | 100 units per milliliter (insulin concentration) |
| U/A | urinalysis |
| U/L | upper and lower |
| u/o | urine output |
| U/P | uretero pelvic |
| U/S | ultrasound |
| UA | unstable angina; urinalysis |
| Ua | uranium |
| UAC | umbilical artery catheter |
| UAO | upper airway obstruction |
| UAP | unlicensed assistive personnel; unstable angina pectoris |
| UARS | upper airway resistance syndrome |
| UB | upper body |
| UC | unchanged; uterine contraction; ulcerative colitis |
| UCB | umbilical cord blood |
| UCC | urgent care center; urothelial cell carcinoma |
| UCG | urinary chorionic gonadotropin |
| UCL | ulnar collateral ligament |
| UCTD | undifferentiated connective tissue disease |
| UD | ulnar deviation; unit dose |
| UDAB | urine drugs of abuse |
| UE | upper extremity |
| UEC | urgent and emergency care |
| UES | upper esophageal sphincter |
| UF | ultrafiltration |
| UFC | urinary free cortisol |
| UFH | unfractionated heparin |
| UFR | ultrafiltration rate |
| UG | urogenital |
| ug | microgram (0.000001 gram) |
| ugE | microgE |
| UGI | upper gastrointestinal |
| UHF | ultrahigh frequency |
| UICC | Union for International Cancer Control |
| UL | upper lid; (tolerable) upper intake level |
| ul | ulnar |
| uL | microliter |
| ULBW | ultra low birth weight |
| ULN | upper limit of normal |
| ULNS | upper limits of normal size |
| umb | umbilicus, umbilical |
| UMN | upper motor neuron |
| UN | united nations |
| ung | ointment (unguentum) |
| UNICEF | United Nations International Children's Emergency Fund |
| unilat. | unilateral |
| unk | unknown |
| UNOS | United Network For Organ Sharing |
| UO | urinary output |
| UOP | urinary output |
| UOQ | upper outer quadrant |
| uPA | urokinase plasminogen activator |
| UPC | universal product code; units of packed cells |
| UPD | uniparental disomy |
| UPDRS | Unified Parkinson's Disease Rating Scale |
| UPEP | urine protein electrophoresis |
| UPJ | uretero pelvic junction |
| UPP | urethral pressure profile |
| UPT | urine pregnancy test |
| UQ | upper quadrant |
| UR | utilization review; upper respiratory |
| ur | urine |
| URI | upper respiratory infection |
| URL | uniform resource locator |
| Urol | urology |
| URQ | upper right quadrant |
| URR | urea reduction ratio |
| URT | upper respiratory tract |
| URTI | upper respiratory tract infection |
| US | ultrasonic; ultrasound |
| USAN | United States Adopted Names |
| USP | United States Pharmacopeia |
| uSpA | undifferentiated spondylarthropathy |
| USS | ultrasound scan |
| ut | uterus |
| ut. dict. | as directed (L. ut dictum) |
| UTD | up to date |
| UTI | urinary tract infection |
| UTox | urine toxicology screen (for drugs) |
| UTV | ultrasound transmission velocity |
| UUN | urine urea nitrogen |
| UV | urine volume; ultraviolet; umbilical vein |
| UVA | ultraviolet A (rays) |
| UVB | ultraviolet B (rays) |
| UVC | umbilical venous catheter |
| UVGI | ultraviolet germicidal irradiation |
| UVJ | uretero vesicle junction |
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Abbreviations vary by context and institution. Many abbreviations have alternate or newer meanings not reflected in this set. The abbreviations on this page should not be considered complete.