The Anti-Phospholipid Antibody (aPL) IgG Test is a broad term for a group of specialized blood assays used to detect the presence of Immunoglobulin G (IgG) antibodies that bind to various phospholipids (fats) and associated proteins (like beta_2-glycoprotein I) in the blood. The primary purpose of this test is to screen for Antiphospholipid Syndrome (APS), an autoimmune condition causing increased blood clot risk and pregnancy complications.
The IgG class of aPL antibodies indicates a long-term immune memory or a persistent autoimmune response.
