I have deep vein thrombosis, with INR of 2.92 (after warfarin), should I take more warfarin?

There are multiple things that could have affected the INR. Have you been taking any other medications recently? Have you started any new vitamins or herbal supplements?

Have you eaten foods with any new spices recently? Have you been under any stress recently (job or sickness)? All can affect the INR, and unless it is a pattern or constant trend should not be of concern.

As to your current INR: it is still thinning your blood, so the odds of you having a problem is low. As to the salad once a month: When was that eaten in relation to the INR test? If it was within a few days that could affect the test.

Rather than eat it once a month, what you would be better doing (after discussing with your doctor) is eating things consistently. Having a big salad once a month is actually worse than having a small one every day or every couple days and using a higher dose of Coumadin to compensate. (Reason being, after that once monthly salad, your INR will tend to drop since you are getting a high dose of Vitamin K all at once.) Now to clear up some of the misconceptions and inaccuracies in other answers.

A warfarin dose of 7.5 is a middle of the road dose. The maintenance dose for the vast majority of people is between 2.5 to 10mg. A dose increase of 2.5mg is exactly what most doctors would do in your situation.

Almost no doctor does a 5mg increase/decrease as the norm. And no doctor is going to give doses that are only multiples of 5mg. Coumadin comes in multiple strengths for exactly this reason (1mg, 2mg, 2.5mg, 4mg, 5mg, 10mg).

Also, being on Lovenox or heparin and Coumadin at the same time is the norm when initiating treatment. Coumadin actually decreases the bodies natural anti-coagulants (Proteins C&S) first prior to decreasing the bodies coagulation factors. Thus, when first starting Coumadin, it can actually be a pro-coagulant (promotes blood clotting).

Most doctors would put you on IV heparin (or high dose Leovenox injections) to counteract this effect. In your case, having 3 PE's it would have been malpractice not to give you some type of anti-coagulant while starting Coumadin. (I would think a Cardiologist would know this- so take James' advice with a grain of salt).

I have been on warfarin since Nov before that I was on riveroxiban for six months after having clots in both lungs when the six months were up I had no medication but in Nov I had another two clots in lungs My INR has been between 2 and 2.5 but since last week it dropped to1.6 so I started getting 1.70 injections in stomache they increased my tablets now I am up to 7mg still getting injectoins had nurses out over weekend . I am waiting for phone call with readings today very scary M.

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