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. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

Collection Instructions

Optimal Volume:0.5 mL
Minimum\Peds Volume:0.4 mL
Container:Sterile tube (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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