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          UBA1Q 
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          UBA1 Mutation Quantitative Detection, VEXAS syndrome, Droplet Digital PCR, Varies Mayo Clinic Laboratories in Rochester
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          UGTFZ 
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          UDP-Glucuronosyltransferase 1A1 (UGT1A1), Full Gene Sequencing, Varies Mayo Clinic Laboratories in Rochester
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          UGT1A1-28 Genotyping for Irinotecan Toxicity Barnes-Jewish Hospital Laboratory
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          Urea Nitrogen, Urine, 24 Hour Memorial-Belleville
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          Urea Nitrogen, Urine, Random Memorial-Belleville
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          Uric Acid Memorial-Belleville & Memorial-Shiloh
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          Uric Acid, Urine, 24 hour Memorial-Belleville
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          Uric Acid, Urine, Random Memorial-Belleville
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          U1A1Q 
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          Uridine Diphosphate (UDP) Glucuronosyltransferase 1A1 TA Repeat Genotype, UGT1A1, Varies Mayo Clinic Laboratories in Rochester
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          Urinalysis (UA) Macroscopic Only Memorial-Belleville & Memorial-Shiloh
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          Urinalysis (UA) with Reflex Culture (aka Urine Macroscopic with Reflex Microscopic and Culture, if Indicated) Memorial-Belleville & Memorial-Shiloh
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          Urinalysis (UA) with Reflex Microscopic (aka Urine Macroscopic with Reflex Microscopic, if Indicated) Memorial-Belleville & Memorial-Shiloh
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          Urine Misc To Mayo Memorial-Belleville & Memorial-Shiloh
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          Urine Strep Pneumo Antigen Memorial-Belleville
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          USTEK 
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          Ustekinumab Quantitation with Antibodies, Serum Mayo Clinic Laboratories in Rochester
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