• anticoagulant
  • reduces risk of thrombus formation


Heparin Hemorrhage Risk Indicators

  • bleeding gums
  • hemotemesis
  • hematuria
  • melena



  • aPTT = activated partial thromboplastin time or PTT = partial thromboplastin time
  • allows therapeutic heparin range to be monitored


Preexisting conditions that contraindicate heparin use:

  • threatened abortion
  • cerebral of aortic aneurysm
  • cerebrovascular hemorrhage
  • severe hypertension
  • blood dyscrasia
  • recent opthalmic surgery
  • recent neurosurgery


Preexisting conditions indicative of increased hemorrhage risk

  1. recent childbirth
  2. severe diabetes
  3. severe retanopathy
  4. hepatopathy
  5. severe trauma
  6. vasculitis
  7. active ulcer or GI lesion
  8. GU or Respiratory tract lesion


Over the counter medications which increase hemorrhage risk

  1. aspirin
  2. nonsteroidal antiinflammatories
  3. cephalosporins
  4. antithyroid agents
  5. probenecid
  6. thrombolytics
  7. garlic
  8. ginger
  9. ginkgo
  10. horse chestnut
  11. feverfew



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