Immunoelectrophoresis - urine
Alternative names:
gammaglobulin electrophoresis - urine; IEP - urine; immunoglobulin electrophoresis - urine; urine immunoglobulin electrophoresis
Normal values:
Normally there is no, or only a small amount, of protein in the urine. When there is protein in the urine, it normally consists primarily of urine albumin
What abnormal results mean:
Immunoglobulin (antibodies) in the urine can result from kidney disorders such as IgA nephropathy or IgM nephropathy. It can also be a screening for other disorders such as multiple myeloma (a form of cancer). (See also immunoelectrophoresis - serum).
In some neoplastic disorders (for example, multiple myeloma, chronic lymphocytic leukemia) a single clone of lymphocytes produces one type of immunoglobulin, a monoclonal immunoglobulin. This is identifiable as monoclonal by immunoelectrophoresis. Some people have monoclonal immunoglobulins but do not have a neoplastic disorder.
Additional conditions under which the test may be performed:
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