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Available Tests

  • BUN (Urea Nitrogen)

BUN (Urea Nitrogen)

Tube Type

Test ID   LAB140
EPIC Order
CPT Code(s)   84520
Group/Individual Test   Individual
Laboratory   Core Laboratory
Tube Station   Routine 30; STAT 888
Specimen Routine: 1 mL blood/serum separator tube/gold top/red/royal blue top acceptable
  micro: 200 µL blood/serum separator bullet/gold top/red top
Stability Unspun:
 <6 hours
Room Temperature-24 hours
Refrigerated-5 days
Frozen-6 months
Availability Routine: 24 hours/day
  STAT: Yes
Turnaround Time   STAT 1 hr., Routine 2 hrs.
Reference Range Normal: see Table below

 Reference Range:

Age mg/dL (Urea-N)
<1 yr 4-19
1-13 yr 5-17
14 yr + 7-21

Reviewed by Christopher Parker on February 28, 2018

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

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