Immunofixation - Serum
DefinitionSerum immunofixation is a laboratory technique used to identify proteins in blood.
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Why is the Test Performed?
The primary use of this test is to identify and monitor certain monoclonal immunoglobulins (IgG, IgM, IgA, lambda light chain, and kappa light chain), such as are present in multiple myeloma and Waldenstrom's macroglobulinemia.
Immunofixation has also been used to study protein variations in protein structure (for example, glucose-6-phosphate dehydrogenase), and in the genetic typing of alpha-1 antitrypsin.
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