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Blood test

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Antinuclear antibody panel

Alternative Names: ANA; ANA panel Normal Values: Usually, there is no detectable ANA in the blood (negative test). Sometimes, however, people without any specific disease may have low levels of ANA for no apparent reason. What abnormal results mean: Text Continues Below Antinuclear antibodies are antibodies produced by the immune system that attack the body's own tissues instead of foreign toxins. They are frequently present in people with systemic lupus erythematosus and, less commonly, in other diseases. The presence of ANA in the blood may indicate: SLE (systemic lupus erythematosus) drug-induced lupus erythematosus collagen vascular disease myositis (inflammatory muscle disease) Sjogren's syndrome chronic liver disease rheumatoid arthritis ANA may also be present occasionally in people with: systemic sclerosis (scleroderma) thyroid disease

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