UGT1A1 Gene Polymorphism (TA Repeat)
UPD-glucuronosyltransferase 1A1 (UGT1A1)
Urea Breath Test (UBTŪ)
Urea Nitrogen, 24-Hour Urine (without Creatinine)
Uric Acid
Uric Acid, 24-Hour Urine (with Creatinine)
Uric Acid, 24-Hour Urine (without Creatinine)
Uric Acid, Random Urine
Uric Acid, Synovial Fluid
Urinalysis w/Microscopic Exam
Urine Culture, Routine w/Reflex Susceptibility
Urogenital Culture w/Reflex
Urinalysis w/Reflex to Microscopic Examination
UroVysion™ Multicolor FISH Probe