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A 62-year-old male asked:

Had lung embolism 20 yrs. ago and maintained on 4 mg. of warfarin. md has always wanted inr at about 1.61. this a good idea, right? why not 2 to 3.0?

1 doctor answer1 doctor weighed in
Dr. Gurmukh Singh
Pathology 50 years experience
You are right: It should be between 2-3. See the attached publication, table 1. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1305837/
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