Test ID B2M Beta-2-Microglobulin, Serum
Useful For
Prognosis assessment of multiple myeloma
Evaluation of renal tubular disorders
Special Instructions
Method Name
Nephelometry
Reporting Name
Beta-2-Microglobulin, SSpecimen Type
SerumSpecimen Required
Supplies: Sarstedt Aliquot Tube 5 mL (T914)
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
Specimen Type | Temperature | Time |
---|---|---|
Serum | Refrigerated (preferred) | 28 days |
Frozen | 28 days | |
Ambient | 14 days |
Reference Values
1.21-2.70 mcg/mL
Day(s) Performed
Monday through Friday
Performing Laboratory

CPT Code Information
82232
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
B2M | Beta-2-Microglobulin, S | 1952-1 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
B2M | Beta-2-Microglobulin, S | 1952-1 |
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.Testing Algorithm
For more information, see Multiple Myeloma: Laboratory Screening
Report Available
Same day/1 to 2 daysNY State Approved
YesForms
If not ordering electronically, complete, print, and send Renal Diagnostics Test Request (T830)