Some doctors - who apparently walk on clouds and seem to think that they're smarter than mere mortals - went crazy on me a few months ago when I mentioned that I was also taking an 81 mg Aspirin daily. They seemed to think that this imbecile was incapable of understanding how aspirin effects clotting and, of course, they would have freaked if I admitted to them that I do my own self-testing (and management). They would have preferred that I get a monthly blood draw and somehow trust that my INR didn't change during the month between tests. The reaction of these cardiology interns was insulting and entirely inappropriate.
So - what I'm saying is that some doctors really don't understand that some (probably not all) patients are perfectly capable of running their own tests and, in some cases, even managing their dosages.
As far as meters go -- I've had an issue with the InRatio reporting considerably higher than actual lab tests. In fact, I had a dangerous situation because I relied on the accuracy of my meter. Others have reported consistently higher than lab results. In fact, when I called Alere and asked about the difference between the InRatio numbers and the lab numbers, what they told me was simple: Trust the Lab. (Not all labs, unfortunately, are always so trustworthy).
The CoaguChek XS is supposedly more accurate than the InRatio, with results that are closer to the lab values than the InRatio. (This isn't a problem for InRatio users, if the InRatio results are ALWAYS high by the same amount). I'll probably know more on Friday -- I was able to get a CoaguChek XS on EBay at a very nice price, and should have the meter in my hands tomorrow - and six strips in my hands in three days. My normal testing day is Friday, so I'll probably test with the XS, and also do a test with my new Coag-Sense meter.
Owning your own meter can feel like a liberating thing -- you're not stuck going to a lab for a monthy (?) blood draw. You can determine your own INR at your own convenience.
As I noted in an earlier post, I have acquired all but one meter over eBay. I've acquired my strips from eBay or other medical suppliers.
One thing that I've been doing from the first test I did at home is to maintain a spreadsheet. It records the time of my test (and, with more than one different meter, which meter was used), my weekly dosage, my INR and any details that may have had (or possibly had) an impact on my INR. When I get a blood draw, I also keep track of that value. This is not only useful historical data, it also helps to convince doctors who might be skeptical about your ability to do your own testing that you are, indeed, on top of it.