Sign in →

Test Code BUN Urea Nitrogen (BUN), Plasma

Performing Laboratory

NRL-Chemistry

Methodology

Enzymatic Conductivity

Note: This test is also available as part of #BMP Basic Metabolic Panel, #COMP Comprehensive Metabolic Panel, and  #RENAL Renal Function Panel. See Common Panel Test Combinations in Special Instructions to avoid duplicate test requests when multiple panels are ordered.

Specimen Requirements

Specimen Type: Plasma

Container/Tube: Light-green top (lithium heparin)

Specimen Volume: 2 mL

Reference Values

≥18 years: 8-24 mg/dL

≤18 years: 9-18 mg/dL

Day(s) Test Set Up

Monday through Sunday

Turnaround Time:

STAT-45 minutes

Routine-shift

Specimen Transport Temperature

Refrigerate

Test Classification and CPT Coding

84520

Special Instructions

LOINC Code Information

Name

LOINC Code

Urea Nitrogen

3094-0