I know infections infections affect the INR , but I can't remember which direction or by how much. ( I'm sure it's person to person dependent.)
I went from slight below target INR of 3.5 on Thursday to suddenly 4.5 this morning. ( spinach for breakfast!) Hematologist raised my Wafarin from 16mg every day to 17 mg every day starting Thursday morning. I am to self check Tuesday ( tomorrow) and report in with INR. I decided to check this morning. I've just switched a week ago today from LMW Heparin to Wafarin so we are trying to establish my dose.
I feel great with INR this high! ( I am leery to even report it to hematologist I feel so well! But that would not be fair to him... I'm about to call.)
However, I'm realizing in the last hour I very well may have a UTI. This may account for the higher INR.
Or, it could be both. I might have a slightly too high dose AND the onset of a UTI. I just don't want to lower my dose of Warfarin unnecessarily and reclot with a DVT the way I did last month...
So, which is it? Does an infectious raise the INR, or make it drop?
And... if I just ate about 1/2 cup of spinach, how long does it take for that to show effect on the INR?