Beta - 2 Microglobulin, Serum (B2M S)
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| Synonyms:
| None listed |
| Specimen: | Blood; (1) SST (serum separator) or Red (no preservative) top vacutainer tube.
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| Volume: | Full primary tube |
| Minimum Volume: | 0.5 mL serum |
| Collection: | If tube other than an SST collected, transfer serum to a tightly capped plastic aliquot tube within 2 hours of collection for transport. Refrigerate at 2-8°C.
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| Rejection Criteria: | Incorrect specimen type; improper labeling. |
| Reference Range: | See report |
| Methodology: | Immunochemiluminometric assay (ICMA) |
| Test Use: | Evaluate renal disease; tumor marker for certain types of malignancies |
| Additional Information: | It is increased nonspecifically in inflammatory reactions and in active chronic lymphocytic leukemia in which there is increased lymphocyte turnover. It may be a useful differentiator of glomerular and tubular dysfunction: in glomerular disease ß²-microgl |
| Testing Includes: | Specimen sent to LabCorp. LabCorp test # 010181. |
| Testing Facility: | LabCorp |