Urea Nitrogen, Plasma (BUN)

Orderable EAP code:

LAB00060

Billable EAP Codes:

80001795 x 1

CPT Codes:

84520 x 1

Lab Section:

Core Lab

Turnaround Time:

Routine: 2 Hours
Urgent: 1 Hour

Test Schedule:

24 hours, 7 days a week.

Units:

mg/dL

Specimen Requirements:

4 mL blood in a GREEN top, lithium heparin tube.

Pediatric Specimen Requirements:

0.5 mL in a 1.0 mL GREEN top, lithium heparin tube.

Reference Range:

  0 Days to 2 months   4 to 15 mg/dL
  2 months to 2 Years   5 to 15 mg/dL
  2 Years to 150 Years   6 to 20 mg/dL

Comments:

Specimen Stability: Serum/plasma on cells 5 days at 4 degrees C and for 24 hours at room temperature. Serum/plasma separated from cells for 24 hours at room temperature.

Synonyms:

Blood Urea Nitrogen, BUN