UBA1 Mutation Quantitative Detection, VEXAS syndrome, Droplet Digital PCR, Varies

Ubiquitin (UBIQ) Immunostain, Technical Component Only

UDP-Glucuronosyltransferase 1A1 (UGT1A1), Full Gene Sequencing, Varies

Ulocladium chartarum, IgE, Serum

Uniparental Disomy, Varies

Uranium, Urine

Urea Cycle Disorders Gene Panel, Varies

Urea Nitrogen, Body Fluid

Urea, 24 Hour, Urine

Urea, Random, Urine

Ureaplasma species, Molecular Detection, PCR, Blood

Ureaplasma species, Molecular Detection, PCR, Plasma

Ureaplasma species, Molecular Detection, PCR, Varies

Uric Acid, 24 Hour, Urine

Uric Acid, Body Fluid

Uric Acid, Serum

Uric Acid/Creatinine Ratio, Random, Urine

Uridine Diphosphate (UDP) Glucuronosyltransferase 1A1 TA Repeat Genotype, UGT1A1, Varies

Uridine Diphosphate-Galactose 4' Epimerase, Blood

Uroplakin II Immunostain, Technical Component Only

Uroporphyrinogen Decarboxylase, Washed Erythrocytes

Uroporphyrinogen Decarboxylase, Whole Blood

Uroporphyrinogen III Synthase (Co-Synthase), Erythrocytes

UroVysion for Detection of Bladder Cancer, Urine

USP6 (17p13), Aneurysmal Bone Cyst and Nodular Fasciitis, FISH, Tissue

Ustekinumab Quantitation with Antibodies, Serum

Ustilago nuda, Mold Grain Rust, IgE, Serum