Tests Beginning with U 14 entries
| UA w C&S if Ind | U C&S IF MICRO INCLUDED CRMC Urinalysis |
| Unf Hep | Unfractionated Heparin Assay Coagulation |
| UNIPD | Uniparental Disomy, Varies Mayo Clinic Laboratories in Rochester |
| Uric | URIC ACID (SERUM/PLASMA) CRMC Chemistry |
| UA Chem | URINALYSIS (Reflex Microscopic) CRMC Urinalysis |
| UA w Micro | URINALYSIS W/MICROSCOPIC CRMC Urinalysis |
| U24 Mg | Urine 24 Hour, Magnesium Level Chemistry |
| U24 Phos | Urine 24 Hour, Phosphorus Level Chemistry |
| Urine S Pneumo & Legion | Urine Rapid Strep Pneumo & Legionella Ag Urinalysis |
| U Ca | Urine, Calcium Level Chemistry |
| U Mg | Urine, Magnesium Level Chemistry |
| U Phos | Urine, Phosphorus Level Chemistry |
| U Urea (urine) | Urine, Random, Urea Nitrogen CRMC Chemistry |
| U Uric | Urine, Uric Acid Chemistry |