Ed34, I have to say that eating more vitamin K has the potential to make one's INR go down but not up. I only mention it for fear that the OP might be tempted to push the greens, which could only make the problem worse.
kwinkie498, I wasn't going to respond to your post at first, even though I feel for you. Your situation is complicated, and I don't have any idea how to get the fundamental issues resolved. The only thing that I can tell you refers to INR management, and that is that when the INR is persistently low, the normal thing to do is to continue increasing the coumadin dose until INR is in range. I didn't even mention that much before, because I don't have any way of knowing if there is a good reason why your doctors have been reluctant to increase the coumadin any more than they have. Good luck.
diet can affect INR quite dramatically. One week my mother in law ate lots of dark green veg high in vitamin K and her INR greatly increased.
Hello and hope you are doing well.
Have renal function tests been done? Is the renal circulation good? With your history of thrombosis and sudden onset of hypertension, it could be due to renal involvement. It is usually recommended to have an INR of 2.0 to 3.0 for basic "blood-thinning" needs. If the INR is higher - about 2.5 to 3.5, it means it is more thinner to prevent clotting. If lower it is thicker. For you they may be aiming at the thinner side.
Hope this helped and do keep us posted.