I've just bought a Coaguchek machine for my own piece of mind after so many of you say how good it is It's an amazing piece of equipment but one my doctor and health authority will not accept the results from. I still have to give an armful of blood every two to four weeks. I have suggested that I go to the clinic every 2 months or so and self test in between times. I think that'll be acceptable to them but they will not allow me to have the testing strips on prescription.. Infact I was made to feel rather elitist by daring to spend so much money - £300 when I already can be tested for free at the clinic and why should I feel the need for wanting to keep a weekly/fortnightly check on my I.N.R. I expect most of you with AF will understand why and having had a T.I.A. and then a stroke it should be obvious.