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Test Code LAB12 Blood Urea Nitrogen (BUN), Plasma or Serum

Additional Codes

Test Name in EPIC EPIC Test Code Mnemonic
BUN LAB12 BUN

 

Methodology

Urease

Specimen Requirements

Submit only 1 of the following specimens:

 

Preferred:

Specimen Type: Plasma

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

Specimen Volume: 1 mL

Specimen Minimum Volume: 0.5 mL

Collection Instructions:

1. Separate plasma from cells within 2 hours of draw.

2. If plunger filters are used, immediate removal of plasma is indicated unless an air gap can be created between the device and specimen.

Additional Information:

1. Avoid repeated freeze/thaw cycles.
2. Label specimen appropriately (plasma).


Alternate:

Specimen Type: Serum

Container/Tube: Serum gel

Specimen Volume: 1 mL

Specimen Minimum Volume: 0.5 mL

Collection Instructions:

1. Separate serum from cells within 2 hours of draw.

2. If plunger filters are used, immediate removal of serum is indicated unless an air gap can be created between the device and specimen.

Additional Information:

1. Avoid repeated freeze/thaw cycles.
2. Label specimen appropriately (serum).

Specimen Transport Temperature

Refrigerate 5 days/Ambient 8 hours OK/Frozen OK

Day(s) Test Set Up

Monday through Sunday

Performing Laboratory

Chemistry -

Central Region: St. Joseph's - Baxter Clinic Lab, St. Joseph's - Brainerd Clinic Lab, St. Joseph's Medical Center Lab

East Region: Ashland Clinic Lab, Deer River Hospital Lab, Ely Clinic Lab, Hayward Clinic Lab, Hibbing Clinic Lab, International Falls Clinic Lab, Northern Pines Lab, Sandstone Hospital Lab, SMDC Clinical Lab, Spooner Clinic Lab, St. Mary's Hospital - Superior Lab, Virginia Hospital Lab

West Region: Ada Hospital Lab, Fargo Hospital Lab, Fosston Hospital Lab, Holy Trinity Hospital Lab, Park Rapids Clinic Lab, South University Clinic Lab, St. Mary's - Detroit Lakes Hospital Lab

 

Test Classification and CPT Coding

84520

Reference Values

0-14 days: 3-23 mg/dL

14 days-1 year: 3-17 mg/dL

1-9 years: 9-22 mg/dL

10-18 years: 7-21 mg/dL

Adult: 5-24 mg/dL