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Beta-2-Microglobulin (Beta-2-M), Spinal Fluid

Test Code
B2MGC


Alias/See Also
B2M, (Beta-2 Microglobulin), CSF Test


CPT Codes
82232

Preferred Specimen
1 mL CSF


Minimum Volume
0.5 mL


Instructions
Send spinal fluid from collection vial 1


Transport Container
Sterile container


Transport Temperature
Refrigerated


Specimen Stability
15-30C up to 14 days
2-8C up to 28 days
-20C up to 28 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis


Methodology
Nephelometry

FDA Status
Approved

Setup Schedule
M-F


Report Available
Same day/1-2 days


Reference Range
0.70-1.80 ug/mL


Clinical Significance
​Evaluation of central nervous system inflammation and B-cell proliferative diseases.


Performed By
Alverno Laboratories

Performing Laboratory
Mayo Clinic Laboratories
Test Code:  B2MC
 


Last Updated: May 16, 2023


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.