Related Experiment Video
Updated: Aug 14, 2026

Measurement of Factor V Activity in Human Plasma Using a Microplate Coagulation Assay
Published on: September 9, 2012
Thromboembolism in Hageman trait
The case of a patient with severe deficiency of Hageman factor (factor XII) in whom a thrombus embolized to arteries in a lower extremity is described. In addition to its action in intiating blood clotting through the intrinsic pathway, Hageman factor can influence kinin generation, fibrinolysis, and activation of complement. While individuals with Hageman factor deficiency have no hemorrhagic disorder, this case emphasizes the role factor XII may normally assume in clot dissolution.
The case of a patient with severe deficiency of Hageman factor (factor XII) in whom a thrombus embolized to arteries in a lower extremity is described. In addition to its action in intiating blood clotting through the intrinsic pathway, Hageman factor can influence kinin generation, fibrinolysis, and activation of complement. While individuals with Hageman factor deficiency have no hemorrhagic disorder, this case emphasizes the role factor XII may normally assume in clot dissolution.
Related Concept Videos
Anticoagulant Drugs: Low-Molecular-Weight Heparins
Disorders of Hemostasis
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
Venous Thrombosis I: Introduction
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies
Venous Thrombosis III: Interprofessional Care
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care

