Lupus Anticoagulant Disorder

**Semantic type:** Disease or Syndrome

**Definition:** A hypercoaguable state that results from the presence of the immunoglobulin known as Lupus Anticoagulant. The antibody interacts with cell membrane phospholipids, causing increased aggregation and adhesion of platelets, which causes increased clot formation. Though the majority of patients who test positive for lupus anticoagulant do not have lupus, those individuals afflicted with lupus have a higher probability of developing the antibody.