Test Code B2M Beta-2-Microglobulin, Serum
Additional Codes
Torrance Memorial Laboratories Test Code: 62871663
Reporting Name
Beta-2-Microglobulin, SUseful For
Prognosis assessment of multiple myeloma
Evaluation of renal tubular disorders
Testing Algorithm
For more information, see Multiple Myeloma: Laboratory Screening
Method Name
Nephelometry
Performing Laboratory
Mayo Clinic Laboratories in RochesterSpecimen Type
SerumSpecimen Required
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 Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Serum | Refrigerated (preferred) | 28 days | |
Frozen | 28 days | ||
Ambient | 14 days |
Reject Due To
Gross hemolysis | OK |
Gross lipemia | OK |
Gross icterus | OK |
Special Instructions
Reference Values
1.21-2.70 mcg/mL
Day(s) Performed
Monday through Friday
Report Available
Same day/1 to 2 daysCPT 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.Forms
If not ordering electronically, complete, print, and send Renal Diagnostics Test Request (T830)