Factor XII assay
Alternate Names : Hageman factor assay
Risks
Veins and arteries vary in size from one patient to another, and from one side of the body to the other. Obtaining a blood sample from some people may be more difficult than from others. Other risks associated with having blood drawn are slight but may include: - Excessive bleeding
- Fainting or feeling light-headed
- Hematoma (blood accumulating under the skin)
- Infection (a slight risk any time the skin is broken)
Special Considerations
People with factor XII deficiency usually do not have excess bleeding. Factor XII does not appear to be needed for clots to form during the normal process of stopping bleeding.
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