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Urea Nitrogen, Urine - 24 Hour

Container Type = Orange Urine

Specimen Type

Test ID   LAB5189
EPIC Order
   UREA NITROGEN TIMED URINE
CPT Code(s)   84540
Group/Individual Test   Group
Laboratory   Core Laboratory
Tube Station   Deliver directly to the laboratory
Specimen Routine: 24 hr urine in container "A"; Refrigerate; See Comments
Stability
Room Temperature: Not Recommended
Refrigerator: 4 days
Frozen: 30 days
Availability Routine: 24 hrs/day
  STAT:  Yes
Turnaround Time   STAT 1hr; Routine 2hrs
Reference Range Normal: 12,000-20,000 mg/24 hrs
Comments
  • Obtain Container "A" from Central Distribution
  • Provide start/stop times of collection
  • Refrigerate during collection
  • Total volume of collection will be reported

Reviewed by J. Carr on January 02, 2026

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