John's Guestbook

Hi John ,
With me , I have found that the venous blood result ( sent to path lab ) is always 0.7 less than the finger prick test .

If my finger prick blood test is 4.0 or over a venous blood specimen is sent to path lab at the same time on the same day . 

I am usually in range

Hi John ,
I have a St.Jude's mitral valve .
My range is 2.5 to 3.5 .
My target is 3.0

I find that there is a difference of 0.7 between the results from a finger prick blood test and the results if blood is sent to the path lab .
I double checked this through reading research and checking back on my own results .

To reach my target , to keep in my range prior to a finger prick blood test , I take a slightly lower dose the day before and omit the next dose of warfarin until after my blood has been checked . I personally think that it ‘s a bit of a mad system but it there to keep us safe .
I have my blood checked about every 6 weeks if I have played the system well .
Three monthly if I have beaten the system.
To me it feels like a funny game really .
Really when we hit out target we should get a prize or a certificate , at the least !!! I hit the target last time I went and there was no prize or anything , not even a sticker !!!
You are doing great . You will soon adjust to the new range and will be absolutely fine again .