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Antinuclear Antibody (ANA) testing is a blood test used to detect autoantibodies that target the body's own cells.
Antinuclear Antibody (ANA) testing is a blood test used to detect autoantibodies that target the body's own cells. These antibodies attack the nucleus of cells, which can lead to inflammation and damage to various tissues and organs. The presence of ANA is associated with autoimmune disorders, where the immune system mistakenly attacks the body's healthy tissues.
ANA testing is most commonly ordered to help diagnose autoimmune diseases, especially when a patient shows symptoms like:
The immunofluorescence assay used in ANA testing can show various patterns of staining, which can help in diagnosing specific diseases:
To further narrow down the diagnosis, specific antibody tests may be ordered:
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