What other disease is the ana test for?

The antinuclear antibody (ANA) test is primarily used to screen for autoimmune diseases, particularly systemic lupus erythematosus (SLE). However, it can also be associated with other conditions, such as rheumatoid Arthritis, scleroderma, and Sjögren's syndrome. A positive ANA test is not definitive for any single disease, as it can occur in healthy individuals as well. Further testing and clinical evaluation are necessary for an accurate diagnosis.