What is it used for?An ANA test is used to help diagnose autoimmune disorders, including:Systemic lupus erythematosus (SLE). This is the most common type of lupus, a chronic disease affecting multiple parts of the body, including the joints, blood vessels, kidneys, and brain.Rheumatoid arthritis, a condition that causes pain and swelling of the joints, mostly in the hands and feetScleroderma, a rare disease affecting the skin, joints, and blood vesselsSjogren's syndrome, a rare disease affecting the body's moisture-making glands
