M
mary duda
My mitral valve was replaced with a Stjude valve in emergency surgery in march. I will bo going back to work next week. The INR on my protime continues to be about 2.1 on 10 mg coumadin. I am also taking a lot of other protein binding drugs. does anyone else have this problem? the INR for mechanical valves should be at least 2.5. is it something to really worry about?