Results:  1-2 business days.

Also known as: ANA Screen, Antinuclear Antibodies Screen.

The body's immune system usually attacks and destroys foreign substances such as viruses and bacteria. In disorders that are known as autoimmune diseases, the immune system attacks and destroys the body's normal tissues. When a person has an autoimmune disease, the immune system produces antibodies that will attach to the body's own cells as though they were foreign substances, often causing them to be damaged or destroyed. Autoimmune diseases include are Rheumatoid arthritis and systemic lupus erythematosus.

An ANA test is used along with your symptoms, physical examination, and other tests to diagnose an autoimmune disease.