Beta-2 Microglobulin, Serum or Plasma
0080053
Ordering Recommendation
Use for risk stratification and staging of multiple myeloma, Waldenstrom macroglobulinemia, and other lymphoproliferative disorders. Aids in differentiating glomerular and tubular renal disease.
Mnemonic
B2M S
Methodology
Quantitative Immunoturbidimetry
Performed
Sun-Sat
Reported
Within 24 hours  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Serum separator tube. Also acceptable: Green (sodium or lithium heparin), lavender (EDTA), or pink (K2EDTA).  
Specimen Preparation
Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.3 mL)  
Storage/Transport Temperature
Frozen.  
Unacceptable Conditions
CSF (refer to Beta-2 Microglobulin, CSF, ARUP test code 0080054)  
Remarks
  
Stability
After separation from cells: Ambient: 8 hours; Refrigerated: 72 hours; Frozen: 6 months  
Reference Interval
1.1-2.4 mg/L  
Interpretive Data
 
Note
 
CPT Code(s)
82232
Components
Component Test Code*Component Chart Name
0080059Beta-2-Microglobulin, Serum/Plasma
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Aliases
  • B2 Microglobulin
  • B2M, Serum
  • Beta Microglobulin
  • Beta-2-Microglobulin
  • Microglobulin, Beta 2
  • Serum B2M
  • Serum beta-2 microglobulin