Beta-2-Microglobulin, CSF

Abbrev Code:CB2MG   
Order Code:LAB181Order Name:Beta-2 Microglobulin CSF
Synonyms:Beta 2 Microglobulin
CPT Codes: 82232 x1
Turnaround Time:Specimens are sent to reference laboratory Sun-Sat; results are reported within 1 day.

For tests developed and validated by ARUP (previously referred to as Compliance Statement B, C or D). 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: Green (lithium heparin, no gel), Red (no gel)

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: 72 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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