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Urea Nitrogen, Urine - Random

Tube Type = Urine Tube Yellow Top

Specimen Type

Test ID   LAB748
EPIC ORDER
   UREA NITROGEN, RANDOM URINE
CPT Code(s)   84540
Group/Individual Test   Individual
Laboratory   Core Laboratory
Tube Station   Routine 30
STAT 888
Specimen Routine:

10 mL random urine in Yellow Top Urine Tube (No Preservative/Additive)

10 ml random urine in sterile specimen cup is acceptable if refrigerated.
  Micro: 1.0 mL random urine in Yellow Top Urine Tube (No Preservative/Additive)
Stability
Room Temperature: 1 day
Refrigerator: 4 days
Frozen: 30 days
Availability Routine: 24 hrs/day
  STAT: YES
Turnaround Time   Routine 2 hrs.
STAT 1hr.
Reference Range Normal: Variable
Comments Other clinical data should be taken into consideration when interpreting these results.

Reviewed by J. Carr on January 02, 2026

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514