When is a factor IX assay indicated?

Updated: Feb 04, 2020
  • Author: Bishnu Prasad Devkota, MD, MHI, FRCS(Edin), FRCS(Glasg), FACP; Chief Editor: Eric B Staros, MD  more...
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Factor IX testing is indicated in the following situations:

  • Hemophilia B is suspected

  • The clinician needs to differentiate the effects of oral anticoagulants from those of liver disease

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