My coumadin nurse tells me they're shooting for something between 2.0 and 3.0. One time it soared to 4.2 - I had been on a fruit juice kick, in particular blueberry juice. Needless to day I've given that treat up!
INR levels for acute MI, atrial fibrillation, treatment of pulmonary embolism, prevention of systemic embolism, tissue heart valves, valvular heart disease, and prophylaxis or treatment of venous thrombosis shoot for an INR between 2.0-3.0. For mechanical prosthetic valves or recurrent systemic embolism they shoot for INR's between 3.0-4.5. (So your 4.2 wasnt really high but too high for what your therapeutic range is) The higher the INR the higher the risk for hemmorhage. The highest I've ever seen was 19.3 which was definitely panic range-she was transferred to the hospital for Vitamin K injections. I'm not really sure how high the possibility is.
- Coumadin Information for Consumers
- Coumadin Information for Healthcare Professionals (includes dosage details)
- Side Effects of Coumadin (detailed)
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