INR test frequency


Intravenous literature: Medpagetoday report “Oral anticoagulation control can be improved by simply re-testing patients within one week after a high or low international normalized ratio (INR) value, according to a study of more than 100,000 warfarin patients.

The researchers studied 104,541 patients who were treated at 100 Veterans Health Administration Clinics and found that a longer interval between testing was a marker for poor control whether the out-of-range INR result was high or low, wrote Adam J. Rose, MD, of the Center for Health Quality, Outcomes, and Economic Research at the Bedford VA Medical Center, Bedford, Mass. and colleagues, in a paper published online April 19 in Circulation: Cardiovascular Quality and Outcomes.”

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