The Anticardiolipin IgA (ACLA) test detects specific antibodies (IgA type) that mistakenly target cardiolipin, a fat in cell membranes, indicating autoimmune issues like Antiphospholipid Syndrome (APS) or Lupus (SLE). A positive result suggests increased risk for blood clots, strokes, or repeated miscarriages, but often requires IgG/IgM tests for full diagnosis, helping doctors understand clotting disorders and unexplained pregnancy loss