Hi Creed3....Al Lodwick is the resident Coumadin expert on this wonderful site. He is a fountain of knowledge and shares his expertise freely. I can tell you that my husband's surgeon and cardio have both said they want his INR to be between 2.5 and 3.5 with a mechanical valve. We've had a few discussions on this list as to the right numbers, but perhaps Mr. Al can best answer that for all of us.
One bit of advice.....IF your insurance will cover it, get yourself a machine that tests your PT/INR at home.....absolutely worth all the hassle that the insurance might give you. We've had ours for about 2 months, and it's the best thing ever. QAS who sponsors this site can definitely help you out, just email them and they'll get the ball rolling.......worth it, worth it, worth it a hundred times over.
Hope you're feeling okay....remember the motto: WALK, WALK, WALK, NAP, NAP, NAP, BREATHE, BREATHE, BREATHE (meaning use that spirometer)
So glad you're on this site.
Evelyn