Test Code BUN Urea Nitrogen (BUN), Plasma or Serum
Additional Codes
Ordering Mnemonic |
---|
BUN |
Methodology
Colorimetric
Performing Laboratory
Holland Hospital Laboratory Services
Specimen Requirements
Submit only 1 of the following specimens:
Plasma
Container/Tube: Mint-top (lithium heparin) tube
Specimen Volume: 1 mL of plasma
Collection Instructions:
1. Indicate plasma.
2. Label specimen appropriately (plasma).
3. Centrifuge within 4 hours of collection.
Serum
Container/Tube: Serum gel tube
Specimen Volume: 1 mL of serum
Collection Instructions:
1. Indicate serum.
2. Label specimen appropriately (serum).
3. Centrifuge within 4 hours of collection.
Specimen Transport Temperature
Refrigerate
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
84520 (HH Bill Code 0205256)
Reference Values
7-21 mg/dL (Ages 1-74)