Name: Urea Nitrogen, Urine
Test Name: Urea Nitrogen, Urine
Health Link Test Code: HCUREA
LIS Test Code: UREA
CPT Code(s): 84540
Days Performed: Daily, 24 hours.
In-Lab Turnaround Time: 4 hours.
Stat In-Lab Turnaround Time: 1 hour.
Specimen: Random urine
Collection Container: Sterile screw cap container
Collection Volume: Entire collection
Sample Analyzed: Urine aliquot
Testing Volume: 1 mL
Pediatric Testing Volume: 0.4 mL
Transport specimen to the laboratory. Transport with coolant pack if coming from clinic location.
Results reported as mg/dL urea nitrogen.
Urine urea nitrogen is typically used as an indicator of renal function. For nutritional assessment of nitrogen balance see Total Nitrogen, Urine.