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Test Code: B2M Preferred Name Beta-2-microglobulin

No
N/A
Weekly
1 week
Medicare Item
N/A

Test Tubes

ImageSpecimen TypeSpecimen VolumeTube Type
Blood (adult)4 mLSST with gel 8.5 mL (Dark Yellow Top)
Blood (paediatric)500 µLSST with gel 600 uL Paed (Red or Yellow top)
Blood (neonatal)500 µLSST with gel 600 uL Paed (Red or Yellow top)

COLLECTION NOTES

--No collection notes--

GENERAL NOTES



APPLICATION:  Provides a useful indicator of prognosis and can be used to follow progression in multiple myeloma.
Prediction of prognosis in HIV infection, in association with absolute CD4 count and viral load.

INTERPRETATION:  Levels are correlated with tumour load, and thus prognosis, in multiple myeloma.
A beta-2-microglobulin level of >4.0 mg/L is associated with increased progression to AIDS.

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