ds-DNA

The ds-DNA test detects the presence of antibodies specifically directed against the genetic material called double-stranded DNA (dsDNA) found in the nucleus of cells. These antibodies are often found in systemic lupus erythematosus (SLE), an autoimmune disease where the immune system mistakenly attacks its own DNA. A positive result means that these antibodies are present, suggesting active disease or flare-ups, especially in the kidneys. A negative result means the antibodies were not found, making SLE less likely but not ruling it out completely. This test helps doctors understand if the disease is active and monitor how well treatments are working.