The Anti-Phospholipid Antibody IgA (APLA IgA) test detects specific autoantibodies (IgA type) that mistakenly attack phospholipids, indicating a risk for blood clots (thrombosis) and pregnancy issues, often linked to Antiphospholipid Syndrome (APS) or autoimmune conditions like Lupus (SLE). This blood test helps diagnose unexplained clots, recurrent miscarriages, and evaluates autoimmune risk, sometimes ordered with other APLA tests (IgG, IgM) for a full picture, with positive results requiring repeat testing for confirmation