Confirmatory Lupus Test - Anti-dsDNA Antibodies by IFA

A specialized microscopic test using the Immunofluorescence Assay (IFA) technique to detect the fluorescence pattern of anti-DNA antibodies in a serum sample. This test is considered highly sensitive and specific, and is often used as a confirmatory test after obtaining a positive ANA result. It is strongly associated with the activity of Systemic Lupus Erythematosus (SLE) and its complications, especially kidney inflammation.