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Factor VIII assay - Results

Alternative Names

Plasma factor VIII antigen

Normal Values:

Normal results vary between labs, but in general, a result between 50% and 200% is considered normal.

What abnormal results mean:

Decreased levels may be due to:

Increased levels may be due to:

  • Advanced age
  • Diabetes
  • Liver disease
  • Inflammation
  • Pregnancy
  • Obesity

Additional conditions under which the test may be performed:

  • Reviewed last on: 6/18/2007
  • Mark Levin, MD, Hematologist and Oncologist, Newark, NJ. Review provided by VeriMed Healthcare Network.