Wednesday, March 21, 2012

Target INRs for common indications for warfarin therapy

Target INRDisease States
2.0 +/- 0.5AF, prophylaxis of stroke and other systemic embolism
2.5 +/- 0.5Prophylaxis or treatment of DVT, PE, heart valve disease, arterial disease
3.0 +/- 0.5Mechanical prosthetic heart valves, AMI, hypercoagulable states

It is recommended that INR be assessed:
- every 4 wks in stable patients
- every 2 wks in less stable patients and less compliant patients
- more frequently if and when situation warrants

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