Skip to main content

Please note that this is a beta version of our website. Should you encounter any bugs, glitches, lack of functionality or other problems on the website, please let us know immediately so we can rectify these accordingly. Your help in this regard is greatly appreciated! You can email us.

Login to North West London Pathology – consumables service

If you need a new account or you have a query about your order, please telephone the pathology call centre on 0203 313 5353.

If you have forgotten your password you can reset this yourself. Please click here if you have forgotten your password.

Results Line and Enquiries

0203 313 5353

Bence-Jones protein (BJP)

Category Biochemistry >> Proteins
Test background

BJP is a paraprotein immunoglobulin free kappa or lambda light chain produced by neoplastic plasma cells. Light chains can be immunoglobulin fragments or single homogenous immunoglobulins. They are found in urine as they are small and hence easily cleared by the kidneys.

Clinicial Indications

A full myelomatosis screen must include a urine sample for BJP as it is the only detectable paraprotein in approximately 20 % of all such cases AL amyloidosis

Reference range

Qualitative test (positive/negative)

Sample & container required Random urine or 24 hour urine collection
Sample volume Random urine: 5 mLor 24 hour urine collection
Transport storage Please freeze pending dispatch for analysis. Sample can be sent by first class post.
Turnaround time 1 week

BJP will not be observed in non-secretory forms of multiple myeloma.

Acidified samples are unsuitable for this assay.