Antinuclear Antibodies (ANA), IFA

Diagnostic Blood Test:

Antinuclear Antibodies (ANA), IFA


An ANA test is a blood test that looks for antinuclear antibodies in your blood. Antibodies are proteins that your immune system makes to fight foreign substances, such as viruses and bacteria. But an antinuclear antibody attacks your own healthy cells instead. The presence of a large number of autoantibodies or ANAs can indicate an autoimmune disease. ANAs could signal the body to begin attacking itself which can lead to autoimmune diseases, including lupus, scleroderma, Sjögren’s syndrome, polymyositis/dermatomyositis, mixed connective tissue disease, drug-induced lupus, hashimoto thyroiditis, inflammatory bowel disease and autoimmune hepatitis.