Which factors increase the risk for heparin-induced thrombocytopenia (HIT)?

Updated: Apr 24, 2018
  • Author: Sancar Eke, MD, FASN; Chief Editor: Srikanth Nagalla, MBBS, MS, FACP  more...
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Answer

Factors that increase the risk for heparin-induced thrombocytopenia (HIT) are as follows:

  • Use of unfractionated heparin (UFH) rather than low molecular weight heparin (LMWH)

  • Intravenous rather than subcutaneous administration of heparin

  • Longer duration of heparin use

  • Surgical (especially cardiac or orthopedic surgery) rather than medical patient

  • Female sex


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