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HelpTEST ID B2M Beta-2-Microglobulin, Serum
Reporting Name
Beta-2-Microglobulin, SSpecimen 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 Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 28 days | |
| Frozen | 28 days | ||
| Ambient | 14 days |
Special Instructions
Testing Algorithm
For more information, see Multiple Myeloma: Laboratory Screening
Method Name
Nephelometry
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
Reference Values
1.21-2.70 mcg/mL
Day(s) Performed
Monday through Friday
Report Available
Same day/1 to 2 daysSpecimen Retention Time
14 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82232
Forms
If not ordering electronically, complete, print, and send Renal Diagnostics Test Request (T830)
Useful For
Prognosis assessment of multiple myeloma
Evaluation of renal tubular disorders