blanket52about every 6 weeks my pt goes from 2.5 ro 3.5 i watch what i eat for it vit k but it still goes up. the doctor has me check it 2 weeks later and it is 2.5 again with no changes. what could be the cause of it. i take it because of heart failure
Answers (1)
DzooBaby7 Aug 2012
Sometimes there is no apparent reason at all. It is just a shift in the way your body is working. This is why it is of the utmost importance to regularly monitor your INR without fail. Even if you ate the same exact thing every day, sometimes you will still get elevations and decreases in PT/INR. Vitamin K will actually make it go down not up. OTC meds like acetaminophen can make it spike high. Certain vitamins, especially vitamin E will make it elevate. Stress sometimes, can make differences. Consistency is your key. You dont have to avoid Vitamin K containing foods, you just have to eat a consistant amount every day. This can be difficult so some people find it easiest to avoid Vitamin K containing foods. Coumadin.com used to be a great resource but it has been undergoing a web redesign and has been off for quite a while but keep watching for it since it can be an excellent resource.
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
Similar questions
I am on 6mg warfarin to keep my inr under 3. it has now just shot up to 4.do I take moore or less?
... warfarin to bring it back to below 3 inr can any one help with this thank you
1 answer • 24 Mar 2010 • 
What are the long term effects of coumadin? Why do INR levels fluctuate when diet etc remains same?
Why are INR levels so good for 4 to 6months & then just go up or down on next diet has not changed at all inr can be 2.5 &in a few months ...
2 answers • 22 Jan 2011 •
What food increase response time (INR) when taking Warfarin?
I have been on warfarin 6.5 mg for over two years, but my last two INR test were above 3.9 and 5.8. I have not changed my normal eating habits or ...
2 answers • 21 Mar 2011 •
Can Cephalexin affect INR levels?
I have recently been prescribed Cephalexin but my INR has dropped to 1.5 and it needs to be over 2.5 as I have a mechanical valve on my aorta.Is this ...
1 answer • 30 May 2011 •
How sensitive is INR for a patient on warfarin?
My 60 yr old wife has her heart valve replaced with a St Jude bi-leaf mechanical valve a week ago. Currently she is on 3mg warfarin per day. Advice ...
1 answer • 30 Jul 2011 •