I just saw your response. For this week, at the lab I use, they are good at what they do for me. My protime was 1.8, due to antibiotic and two salads close together two days in a row. I do not usually eat salads like that, but they tasted so good on hot days. But what the plan is to stay at regular dose and test within 10 days. I am care for carefully. I did lovenox once with I did without Warafarin for a few weeks, no medical insurance at the time. Made myself go to a charity hospital and got the care I needed. And had an eye clot two days before. I was a lucky lady. So glad that you are giving great advice. I would have said the same. Always use caution on meds. You have a great weekend and I will give you a hug for today. LOL!vivekd - with all due respect, I think you may be overdoing it with the Lovenox any time your INR drops below 2. If you test your INR twice a week (this is what it sounds like), your INR probably wouldn't have been below 2 for more than three days or so. Increasing your dose after the low INR reading should raise the INR in about 3 days. I don't think your risk justifies the use of Lovenox (although, I guess, it can't hurt).
According to what I've read, though, it takes about a week or longer with an INR below 2 for a clot to form on the valve. I guess, as you said, it's better to be safe, but I'm still not sure the Lovenox is appropriate for the few days your INR is only slightly below 2.
(I had an INR of 1.1 a few years ago -- I DID go the Lovenox route back then, but tested daily and after a day of increased dose of warfarin, my INR was again in safe range. )