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Test Name:
Beta-2-Microglobulin, Cerebrospinal Fluid
- SBMF No:
30006 - Performance Lab Name:
Immunology - Test Mnemonic:
CSF B2-M - ABN:
May be required – Medical Necessity - CPT Code:
82232 - LOINC Code:
1951-3 - Also Known As:
B2M
Microglobulin, Beta-2 - Also See:
30008 – Beta-2-Microglobulin, Serum
30007 – Beta-2-Microglobulin, Urine - Spec Type:
Cerebrospinal fluid (CSF) - Spec Container:
Sterile plastic tube with screw-top cap - Pref Vol:
1.0 mL - Min Vol:
0.3 mL - Fasting:
No - Spec Collect:
Collected by physician - Spec Process:
Promptly centrifuge 15 minutes
Immediately transfer supernatant to a separate plastic tube and refrigerate - Spec Store Transport:
Refrigerated - Spec Stability:
1 week refrigerated (2-8°C)
2 weeks frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Methodology:
Chemiluminescent Immunoassay (CLIA) - Reference Range:
Less than or equal to 2700 µg/L - Day Run:
Mon, Wed, Fri - Time Run:
8:00 am - Time Reported:
5:00 pm - Test Type:
CHEMISTRY
