below. an inr within 0.5 units of the target value in the uk is generally considered satisfactory. in the usa it is recommended that the inr be maintained at the mid-level of the range. an inr less than 2.0 generally represents inadequate anticoagulation and an inr above 4. 5 represents ...
For patients over-anticoagulated on warfarin, the British Society for Haematology recommends the fol- lowing: • in cases where the INR is 0.5 above the target value but less than 6.0, warfarin should be reduced in dose or withdrawn until the INR falls to below 5.0 • if the INR is ...