The Anti Cardiolipin IgG (ACLA) test is a blood test detecting specific antibodies that target cardiolipin, a cell membrane component, indicating autoimmune issues like Antiphospholipid Syndrome (APS) or Lupus (SLE) by increasing risk of blood clots, strokes, and recurrent miscarriages. This IgG type signifies a longer-term immune response, helping diagnose chronic clotting disorders, and involves a simple blood draw, usually without fasting, to assess risks for unexplained clotting or pregnancy loss