Browse Medical Abbreviations

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