Beta-2-Microglobulin, CSF
| Abbrev Code: | CB2MG | ||
| Order Code: | LAB181 | Order Name: | Beta-2 Microglobulin CSF |
| Synonyms: | Beta 2 Microglobulin | ||
| Methodology: | Immunoturbidimetric | ||
| CPT Codes: | 82232 x1 | ||
| Turnaround Time: | Specimens are sent to reference laboratory Sun-Sat; results are reported within 1 day. | ||
| Compliance: | 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. |
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Collection Instructions
| Specimen: | CSF |
| 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 |
Interpretive
| 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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