Ordering Recommendation

Evaluate central nervous system involvement of certain inflammatory or B-cell proliferative diseases.

Mnemonic
B2M CSF
Methodology

Quantitative Immunoturbidimetry

Performed

Sun-Sat

Reported

Within 24 hours

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

CSF. Also acceptable: CSF collected in plain red or green (sodium or lithium heparin).

Specimen Preparation

Centrifuge to remove cellular material. Transfer 0.5 mL CSF to an ARUP Standard Transport Tube. (Min: 0.4 mL)

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions
Remarks
Stability

After separation from cellular material: Ambient: 72 hours; Refrigerated: 1 week; Frozen: 2 weeks

Reference Interval

0.0-2.4 mg/L

Interpretive Data



Compliance Statement B: For laboratory developed tests not using a RUO kit, and for FDA approved, cleared or 510(k) exempt assays with alterations. 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.

Note
Hotline History
N/A
CPT Codes

82232

Components
Component Test Code* Component Chart Name LOINC
0080061 Beta-2-Microglobulin, CSF 1951-3
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • B2 microglobulin CSF
  • B2M CSF
  • Beta 2 Microglobulin, CSF Test
  • CSF B2M
Beta-2 Microglobulin, CSF