When is the global normalized ratio (INR) target range?

Updated: Dec 11, 2019
  • Author: Glenn T Stokken, MD; Chief Editor: Buck Christensen  more...
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The international normalized ratio (INR) recommendations below are per guidelines from the American College of Chest Physicians (2008). [1]

The INR target (range) is 2.5 (2.0-3.0) in all of the following circumstances [2, 3, 4, 5] :

  • Ischemic stroke, transient ischemic attack (TIA), or systemic embolism

  • Risk factors (age >75 years, hypertension, diabetes mellitus, decreased left ventricular systolic function, heart failure)

  • After open-heart surgery

  • Planned cardioversion

  • Emergency cardioversion

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