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Beta 2 Microglobulin, Serum

Beta-2-Microglobulin, Serum, Beta 2 Microglobulin, Serum

Test Codes

EPIC: LAB5801, Beaker: B2MG, Antrim: 31360

Department

Chemistry

Specimen Collection Criteria

Collect: One Gold-top SST tube. (Minimum Whole Blood: 2.0 mL)

Physician Office/Draw Specimen Preparation

Preparation for Courier Transport

Transport: Centrifuged collection tube, refrigerated (2-8 °C or 36-46 °F). (Minimum Serum: 0.5 mL)

Rejection Criteria

Plasma specimens.

Severely lipemic, icteric, or hemolyzed specimens. 

In-Lab Processing

Let specimen clot 30-60 minutes then immediately centrifuge to separate serum from cells. Room temperature is acceptable for a maximum of two hours. (Minimum Serum: 0.5 mL)

Storage

Specimen Stability for Testing:

Centrifuged SST Tubes and Microtainers^® with Separator Gels
Room Temperature (20-26°C or 68-78.8°F): 2 hours
Refrigerated (2-8°C or 36-46°F): 7 days
Frozen (-20°C/-4°F or below): Unacceptable

Red-top Tubes and Microtainers^® without Separator Gels
Room Temperature (20-26°C or 68-78.8°F): 2 hours
Refrigerated (2-8°C or 36-46°F): Unacceptable
Frozen (-20°C/-4°F or below): Unacceptable

Serum Specimens (Pour-Overs)
Room Temperature (20-26°C or 68-78.8°F): 2 hours
Refrigerated (2-8°C or 36-46°F): 7 days
Frozen (-20°C/-4°F or below): 14 days

Specimen Storage in Department Prior to Disposal:

Refrigerated (2-8°C or 36-46°F): 7 days

Laboratory

Royal Oak Automated Chemistry

Performed

Monday – Friday.
Results available in 2 business days.

Reference Range

Less than 2.5 mg/L.

Test Methodology

Immunoturbidimetric.

Interpretation

By report.

Clinical Utility

This assay is used to evaluate renal disease and to assess prognosis and monitor lymphoproliferative disorders, such as multiple myeloma and chronic lymphocytic leukemia.

CPT Codes

82232
LOINC:  1952-1, 1953-9

Contacts

Last Updated

10/3/2023