What is INR?

تست INR

The effect of warfarin on the blood is measured by an INR test and stands for International normalize ratio. Another name for it at the time was standardized prothrombin, which is actually a standardized ratio between different laboratories.

what is INR
The INR level in healthy people is about 1 and 1 tenth, and the recommended treatment levels depend on the patient’s condition, and in most cases between 2 and 3. However, higher levels are required in patients with artificial heart valves.

What drugs is this test not suitable for?

The INR test is not suitable for assessing coagulation levels in patients taking the following medications.

  • Dabigatran
  • Apixaban
  • Rivaroxaban
The effects of Dabigatran on coagulation can be evaluated qualitatively by APTT (activated partial thromboplastin time) coagulation.
management of dental patients taking anticoagulants or antiplatelet drugs


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