Free κ and λ Light Chains Plus Ratio, Quantitative (Serial Monitor)

Use

The Free κ and λ Light Chains Plus Ratio is used primarily for the long-term serial monitoring of patients. It involves the quantification of free kappa and lambda light chains, as well as the kappa/lambda ratio, which are vital in the diagnosis and management of multiple myeloma and related disorders. This test aids in the assessment of disease progression or response to treatment through the analysis of serum light chains, which are proteins produced by plasma cells. Abnormalities in light chain production (either an excess of one type or an abnormal ratio) can be indicative of malignant disease, such as multiple myeloma, light chain amyloidosis, or chronic lymphocytic leukemia.