Beta-2-Microglobulin, CSF

Sunquest Code:CB2MG  
Epic Code:LAB181Epic Name:Beta-2 Microglobulin CSF
Synonyms:Beta 2 Microglobulin
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported within 1 day.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the U.S. Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Collection Instructions

Optimal Volume:0.5 mL
Minimum\Peds Volume:0.4 mL
Container:Sterile tube
[Alternate Containers: Plastic leakproof container, sterile]

Processing and Shipping

Specimen Processing:Centrifuge to remove cellular material. Aliquot 0.5 mL, 0.4 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:After separation from cellular material: 8 hours at room temperature; 1 week refrigerated; 2 weeks frozen.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:80054


Reference Range:0-2.4 mg/L
Use: In disorders such as acute leukemia and lymphoma, where there is CNS involvement, the CSF b 2M may be elevated. This is often meaningful if measured simultaneously with serum b 2M.

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