Sign In
Labcorp Oklahoma, Inc.
Test Directory


Index:

Urea Nitrogen, Blood (Arterial)

Order Name ART BUN
Test Number: 2015650
Revision Date 06/04/2021
Test Name Methodology LOINC Code
Urea Nitrogen, Blood (Arterial)
Urease/GLDH 12961-9 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.5) Plasma Lithium Heparin PST (Light Green Top) Refrigerated
Alternate 1 1 mL (0.5) Serum Clot Activator SST Refrigerated
Instructions Stability: Ambient 7 days, Refrigerated 7 days, Frozen 1 year
GENERAL INFORMATION
Testing Schedule Daily 
Expected TAT 1-2 days  
Clinical Use Useful in the diagnosis and treatment of certain renal diseases and metabolic disorders. 
CPT Code(s) 84520
Lab Section Chemistry