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HelpTest Code UUREA Urea Nitrogen, Urine, LAB748
Performing Laboratory
St. Luke's Hospital Cedar Rapids
Specimen Requirements
Container/Tube:
Preferred: random urine collection
Specimen Volume: 0.5 mL from a random urine collection.
Stability: Urine urea nitrogen is stable at 4-8°C for 4 days.
Reference Values
No established reference values
Day(s) Test Set Up
Monday through Sunday
Useful For
Measurements of urine urea nitrogen are used in the diagnosis and treatment of certain renal and metabolic diseases.
Methodology
Urease with Glutamate Dehydrogenase (GLDH)
Note: A 24-hour urine collection is the preferred specimen. See test code UUN24 Urea Nitrogen, Urine, Timed, LAB449.
Test Classification and CPT Coding
84540
Report Available
Within 1 hour of receipt