B2-Microglobulin

The Beta-2 Microglobulin (B2 Microglobulin) Test measures the level of beta-2 microglobulin, a small protein found on the surface of many cells and released into the blood. It is commonly used to evaluate certain blood disorders, immune system conditions, and kidney function. The test can also assist in the assessment and monitoring of diseases such as multiple myeloma, lymphoma, and some forms of leukemia. When interpreted alongside other clinical findings, it provides valuable information about disease activity and overall health.

Who Should Get This Test Done?

This test may be recommended if individuals:

●     Have multiple myeloma, suspected multiple myeloma, or other blood cancers such as B-cell non-Hodgkin lymphoma, chronic lymphocytic leukaemia (CLL), or Waldenström macroglobulinaemia.

●     Require monitoring of treatment response, disease progression, or prognostic assessment in haematological malignancies.

●     Have HIV infection, autoimmune disorders, or chronic inflammatory conditions where immune system activity needs evaluation.

●     Have chronic kidney disease, a history of kidney transplantation, or exposure to nephrotoxic medications, heavy metals, or industrial chemicals requiring assessment of kidney tubular function.

●     Are being evaluated for possible central nervous system involvement in lymphoma or leukaemia.

Why Consider This Test?

The Beta-2 Microglobulin Test provides important information that can help healthcare providers understand how certain diseases are affecting the body. It is frequently used in the evaluation and follow-up of blood cancers and may also offer insight into kidney function and immune system activity. When combined with other laboratory tests and clinical findings, it helps guide diagnosis, monitor the course of a disease, and assess response to ongoing treatment, allowing for more informed medical decisions.

More Information

Beta-2 microglobulin is a protein present on the surface of most nucleated cells and is continuously released into the bloodstream as part of normal cell turnover. Its levels may change in conditions involving increased cell activity, immune system disorders, or reduced kidney filtration. Since the protein can be influenced by a variety of medical conditions, healthcare providers often interpret this test alongside other laboratory investigations to obtain a comprehensive understanding of the patient’s health status.

Other Names

●     Beta-2 Microglobulin Test

●     B2M Test

●     Serum Beta-2 Microglobulin

●     Urine Beta-2 Microglobulin

●     β2 Microglobulin Test

●     Multiple Myeloma Prognostic Marker – B2M

●     MHC Class I Light Chain Test

●     Beta-2 Microglobulin Tumour Marker

●     B2 Microglobulin Serum Level Test