Marlene,
No thanks required.
I just hope the info was helpful to you. Keeping the INR between 2.5-3.0 is the best prior to surgery. I'm sure with your clotting history they will be monitoring you very closely and if the need arises put you on blood thinners as soon as it is medically feasible. With all the bad we here about some docs there are some real good and very capable ones out there and I'd probably say it's the majority of them who know their stuff. The unfortunate part is we don't hear enough about all the good ones and the bad ones make the mass media so automatically everyone assumes the worst.
You have a great attitude and a little anxiety prior to surgery is not always a bad thing just make sure the questions that bring on the anxiety are remembered and get asked prior to the surgery.
All the best.
If I can be of further assistance let me know.
Cheers,
Mike