Lupus anticoagulant is an autoantibody that interferes with clotting tests and, despite its name, is associated with an increased risk of abnormal blood clots (thrombosis). It is one of the antiphospholipid antibodies and is screened as part of a thrombosis and autoimmune work-up.
Lupus anticoagulant
An antibody that paradoxically raises clot risk; screened to assess thrombosis and autoimmune coagulation disorders.