Hi
I was wondering how are you getting on with libre? I ve had mine a week, the readings are so inacurate i cant trust it. I had a reading of 18.6 and tested on my bg star and freestyle meter ( finger pricks) and they read 12.1 and 13 respectively. After seeing this i have been comparing a lot and it seems to have completely different readings even taking into account libre is 4.5 mins behind. I felt low took my libre reading at 6.3 finger prick was 3.8. Worrying. Then i knocked my sensor off walking past a door after a week. I was so looking forward to using this but i couldnt trust it. Great idea but think technology is nt quite up to it yet. Really want it to work as i am very active at work and play and would be life changing if i could trust it.
If you go and look at the various sources of information, you'll see a couple of things relating to your post:
1. When your blood glucose level is moving fast, you generally see significant differences between Libre and bloods. A 6.3 and vertical down arrow when you have a blood test of 3.8 would be a case in point where it knows it is moving fast but hasn't caught up yet. Likewise, when it goes high.
2. At high readings (and 12 and 13 are high) then it tends to over-read. This is again systemic and virtually all users report this behaviour.
3. The most useful aspect of it is not the point in time readings. It is the trend information. Knowing how fast your blood glucose level rises in response to food and when your insulin kicks in. Whether you stay flat when fasted overnight or you rise and when that occurs. At what point dawn phenomenon kicks in. All of this is hugely useful data
regardless of the actual value you are looking at.
I do think that Abbott's tagline of "no more fingerpricking" us misleading, but if you treat it as a Continuous Glucose recorder rather than a fingerprick replacer, it's an incredibly useful tool.