Anticardiolipin Antibodies
(ACA)

Alternate Names

  • aCL Antibodies
  • Cardiolipin Antibodies

Autoimmune diseases cause the body to attack itself, which leads to inflammation and results in damage to muscles, tissues, and organs. The body produces antibodies specific to each autoimmune disease; the antibody levels measured in your blood are then used by your doctor to diagnose the disease that is causing your symptoms. ACA is a blood test that is mainly used to diagnose SLE (systemic lupus erythmatosis). High blood levels of ACE are also seen in people who have infections, thrombosis, thrombocytopenia, or the elderly.

People who have had syphilis in the past may have a false positive result; some medications may also cause false positive results.

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