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Beta-2-Microglobulin, Serum

Tube Type

Test ID LAB49
EPIC ORDER
 BETA 2 MICROGLOBULIN, SERUM
CPT Code(s) 82232
Group/Individual Test Individual
Laboratory Special Chemistry Laboratory
Tube Station 30
Specimen Routine: 5 mL blood/Gold SST tube/Red plain also acceptable
Micro: 2.5 mL blood/3 microtainers devices

Stability

 Unspun: 4 hrs
Room Temperature: 
Not Acceptable
Refrigerator (2-8°C):
3 days
 Frozen (-20°C):
up to 14 days
Availability Routine: Performed 3 days/week, Monday, Wednesday, Friday, no weekends, no holidays; Not available STAT
Turnaround Time 3 Days
Reference Range Normal: 0.87 - 2.34 ug/mL
Comments
  • Tumor marker assays cannot be used interchangeably; therefore, the same method should be used to serially monitor patients. 
  • This assay has not been validated using pediatric samples.
  • The instrument used is The Binding Site Optilite® Optimised Protein System. The Optilite Beta-2 Microglobulin assay uses turbidimetric methodology. 
  • Multiple test requests with same sample type will require additional volumes for testing.
  • Pediatric microcollection devices available from Phlebotomy Services

Reviewed by J. Carr on November 14, 2025

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514