Factor VIII assay

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Plasma factor VIII antigen

A result between 50% and 200% of the laboratory reference value is considered normal.

Decreased levels may indicate:

• Hemophilia A
• Disseminated intravascular coagulation , a state in which the clotting factors are used up due to diffuse coagulation of the blood
• Presence of a Factor VIII inhibitor (antibody)

Additional conditions under which the test may be performed:

• Von Willebrand's disease

Review Date: 04/15/2005
Reviewed By: Rita Nanda, MD, Department of Medicine, Section of Hematology/Oncology, University of Chicago Medical Center, Chicago, IL. Review provided by VeriMed Healthcare Network