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Labcorp Oklahoma, Inc.
Test Directory


Index:

Blood Urea Nitrogen (BUN)

Order Name BUN
Revision Date 11/11/2019
Test Name Methodology LOINC Code
Blood Urea Nitrogen (BUN)
 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1.0 mL (0.5 mL) Plasma Lithium Heparin Refrigerated
Alternate 1 1.0 mL (0.5 mL) Serum Serum Gel Tube Refrigerated
Instructions Label specimen with Mobilab label or with patient name (first and last), date of birth, date and time of collection, collector initials, and test(s) being ordered.
Reference Range An interpretive report will be provided.
GENERAL INFORMATION
Testing Schedule Daily 
Expected TAT 3 Hours  
Stat TAT 45 Minutes 
Notes Specimen Stability:
Ambient - 24 Hours
Refrigerated - 2 Days
Frozen - 2 Months
 
CPT Code(s) 84520
Lab Section NRLS-Core Chemistry