| UBA1Q | UBA1 Mutation Quantitative Detection, VEXAS syndrome, Droplet Digital PCR, Varies Mayo Clinic Laboratories in Rochester | 
      
        | UGTFZ | UDP-Glucuronosyltransferase 1A1 (UGT1A1), Full Gene Sequencing, Varies Mayo Clinic Laboratories in Rochester | 
      
        | URAU | Urea, 24 Hour, Urine Mayo Clinic Laboratories in Rochester | 
      
        | URCON | Urea, Random, Urine Mayo Clinic Laboratories in Rochester | 
      
        | URBRP | Ureaplasma species, Molecular Detection, PCR, Blood Mayo Clinic Laboratories in Rochester | 
      
        | URRP | Ureaplasma species, Molecular Detection, PCR, Varies Mayo Clinic Laboratories in Rochester | 
      
        | URIC | Uric Acid FMH Laboratory | 
      
        | URCU | Uric Acid, 24 Hour, Urine Mayo Clinic Laboratories in Rochester | 
      
        | FUABF | Uric Acid, Body Fluid ARUP Laboratories | 
      
        | RURC1 | Uric Acid/Creatinine Ratio, Random, Urine Mayo Clinic Laboratories in Rochester | 
      
        | U1A1Q | Uridine Diphosphate (UDP) Glucuronosyltransferase 1A1 TA Repeat Genotype, UGT1A1, Varies Mayo Clinic Laboratories in Rochester | 
      
        | UA | Urinalysis FMH Laboratory | 
      
        | UAMICRO | Urinalysis Microscopic FMH Laboratory | 
      
        | UARC | Urinalysis Reflex to Culture FMH Laboratory | 
      
        | UAM | Urinalysis with Microscopic FMH Laboratory | 
      
        | UAD | Urinalysis, Diabetic FMH Laboratory | 
      
        | C Urine | Urine Culture FMH Laboratory | 
      
        | UPII | Uroplakin II Immunostain, Technical Component Only Mayo Clinic Laboratories in Rochester | 
      
        | FUROC | UroVysion for Detection of Bladder Cancer, Urine Mayo Clinic Laboratories in Rochester | 
      
        | USTEK | Ustekinumab Quantitation with Antibodies, Serum Mayo Clinic Laboratories in Rochester |