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The ANA blood test is one of many screening tests for autoimmune disorders. Find out how this test helps doctors to identify invisible illnesses that cause chronic pain and other symptoms and learn what your test results mean.slide 1 of 4.he results of this test used to determine an ANA titer are also described as the type of fluorescent patterns that show up on the cells contained in the blood sample. Specific patterns can indicate specific autoimmune diseases.
The ENA panel is usually ordered following a positive ANA test for people who have signs and symptoms of an autoimmune disorder. The 4-test ENA panel is used to help diagnose mixed connective tissue disease (MCTD), systemic lupus erythematosus (SLE), and SjÃ¶gren syndrome.