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What is an ANA?

April 26, 2017ANA

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What is an ANA?

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ANA stands for “antinuclear antibody”. The ANA test is a blood test run primarily on individuals suspected of having an autoimmune disease, such as lupus. An ANA can be positive in other diseases, but is almost always positive in lupus patients. A positive ANA does not constitute a positive lupus diagnosis – it is just one “tool” in the diagnosis process. A titer of more than 1:80 is considered positive. The ANA test measures antibodies circulating in the blood.