Beta 2 Microglobulin (B2M)

Department of Immunology

Notes

• Useful for prognosis and monitoring of lymphoproliferative disease such as multiple myeloma. Also raised in renal tubular dysfunction.
• Test performed by Immunology, North Bristol NHS Trust.

Sample Requirements

Clotted blood.

Adult

5ml Gold-top SST tube or 3.5ml Rust-top gel tube (Trust users only)

Paediatric

1ml serum Sample

Time limit for add-on

3 days

Turnaround Times

14 days

Reference Range

<= 60 years old 0.8 – 2.4 mg/L

> 60 years old <=3.0 mg/L