LOINC long common name : IgA.kappa [Mass/volume] in Serum or Plasma;
LOINC short name : IgA kappa SerPl-mCnc;
LOINC description : Immunoglobulins are made up of two identical heavy chains which define the immunoglobulin
class (A, G, or M) and two identical light chains, kappa or lambda (κ or λ). Each
light chain is bound to a heavy chain. This test measures IgA, but selectively IgA
with a kappa light chain. The assay employs antibodies that target unique junctional
epitopes between the light and heavy chains for each IgA molecule. High serum concentrations
of monoclonal protein may indicate an underlying abnormality such as multiple myeloma,
monoclonal gammopathy of unknown significance (MGUS), or other lymphoproliferative
disorders. [PMID:23211046]This term was based on, but not limited in use to, the Hevylite
Human IgA Kappa assay.;