Laboratory Medicine
Test Directory / Beta-2-Microglobulin
Beta-2-Microglobulin
Brown clotted serum, gel barrier
| Test | Beta-2-Microglobulin | 
|---|---|
| Common Abbreviations | B2M | 
| Profile | NA | 
| Tube type | Brown clotted serum, gel barrier | 
| Clinical Indication | Used as a tumour marker in the monitoring of myeloma, lymphoma and leukaemia. Raised levels in renal patients may indicate dialysis-related amyloidosis or transplant rejection. Less commonly, measurement of B2M in serum and urine may be used to distinguish between glomerular and tubular causes of proteinuria. | 
| Specimen Type | Blood | 
| Sample type | Serum | 
| Minimum Volume | 0.5mL If requesting more than 10 tests please send an additional brown clotted serum sample. | 
| Special Precautions | No special requirements | 
| Stability | 3 days at 2-25°C | 
| Turnaround Time | Inpatient: 24 hours Outpatient/ GP: 24 hours | 
| Laboratory | York | 
| Reference Interval | Adults: 0.8 - 2.2 mg/L - New range as of 03/04/18 (Quoted by manufacturer) | 
| Limitations | Raised levels of beta 2 microglobulin may be observed in any condition where there is increased cell turnover or immune activity e.g. CMV and HIV infection, inflammatory and autoimmune disorders. | 
| Notes | 






