The immunoglobulin electrophoresis (Immunofixation) blood test is used to examine and separate different types of antibodies, such as IgG, IgA, IgM, as well as other proteins present in plasma. This test helps evaluate immune system function and detect any imbalances or disorders, such as increased or decreased levels of certain antibodies. It is primarily used to diagnose lymphatic diseases, such as multiple myeloma, and to monitor certain chronic infections. The results require careful interpretation by a doctor to fully understand the patient’s health status and determine appropriate treatment.