Bonnie:
I sense that you're worried. It seems to me that you have the machine and the materials to test whenever you want. If you have a concern, for any reason, rational or not, why not just do a test and be done with it. You can't hurt anything by testing too much. I also don't think that you are going to do yourself harm by having a few salads, drinks, or moderately high vitamin K foods. But, who am I to talk. I'm worried all the time about Al, so I understand. He tests once a week and that is probably too much. But, we pay for the tests ($12. no insurance) and they give him peace of mind. (me too).
Albert had a TIA on Friday, December l5, while having lunch with his buds at the local watering hole. He was unconscious for 1-1/2 hours, and incoherent for another 3 hours. The doctors kept him in hospital for 5 days and released him on Wednesday, December 20. On Friday, December 22, in front of my very eyes, he had the big stroke (CVA). When he had the TIA (first stroke) his INR was measured at 1.7 in the hospital. His last test prior to this was 27 days previous and his INR was 3.6. Actually, he was going to get his protime test the next day when the first stroke hit. When he was hospitalized the second time, his INR was 1.6.
About 4 months later, he had a small TIA that lasted about 2 hours. His INR was measured at the emergency room at 1.7.
You have to put this into context. Al had his valve replaced 10 years before he had the strokes. In that time, he had no trouble at all that we know of. Prior to his strokes, neither he nor I had ever even heard the term INR. We still can't be positive that the strokes were caused by a low INR, although that does seem very probable. I was able to get a copy of his protime test results for three plus years prior to his strokes. His INR was below 2.0 three times in those prior three plus years and nothing untoward happened. In May 2002 Al was hospitalized with internal bleeding. He received transfusions and his INR dropped to 1.8. He did not have a stroke this time.
I guess you can say that when the INR drops below 2.0, the risk of stroke increases. But that does not mean that a stoke will happen everytime. That's why we have a home monitor and that's why Al probably tests more than he has to. I hope this information helps. I don't like to give advice, but in this case I will say, if you are concerned about your INR, do the test. It's your call.
Kind regards,
Blanche