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Wheeless' Textbook of Orthopaedics
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Lupus Anticoagulant



- See: Antiphospholipid Antibodies;

- Discussion:
    - is antibody acting on phospholipid of prothrombin activator complex causing an in vitro anticoagulant effect that paradoxically is
          associated with thrombosis in vivo;
          - patients may demonstrate venous and arterial thrombosis and thrombocytopenia;
    - there is no agreement as to which group of tests is more sensitive to measure lupus erythematosus anticoagulant;
    - plasma showing abnormal activated partial prothrombin time, a positive screening test for lupus anticoagulant, & no evidence
          of fibrin-fibrinogen degradation products is considered positive for lupus erythematosus anticoagulant;
    - patients with lupus average have frequency of 34% for lupus erythematosus anticoagulant and 44% for anticardiolipin antibodies;






















Original Text by Clifford R. Wheeless, III, MD.