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Immunology Laboratory

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Free Immunoglobulin Light Chains

Also known as: FLITE; FreeLITE

This test is for the quantitation of serum free light chains, both kappa and lambda, and the resulting Kappa:Lambda ratio is also calculated.

The concentrations and ratio in serum is of value in the diagnosis and monitoring of patients with light chain myeloma, non-secretory myeloma and primary light chain amyloidosis (AL amyloidosis).

Specimen requirements

Serum - 1ml


Price on application

Laboratory turnaround time

5 days

Laboratory method


Reference range/units

Not applicable

Associated tests

Not applicable

Sample stability

3 weeks at 2-8ÂșC

Shipping and storage

UK and Ireland

Ambient temperature and first class post. Hays DX users please enquire via email below.


Ambient temperature if courier will deliver within 72 hours otherwise consider refrigerated transport. Freezing is not a requirement.

Ensure delivery Monday to Friday 09:00 - 17:30.

Further information and contact details

For further information, email

Last reviewed:12 September 2022