I wrote about our second favourite flash glucose monitoring device – Abbott’s Libre – and
Some of these are practical day-to-day things and some are more esoteric and aren’t really Abbott’s fault but I’m going to lump them all together because no-one ever said life was fair.
There’s no escaping the fact that any flash glucose system is not going to be as accurate as a capillary blood test. Prior to starting with the Libre, I used Bayer’s (sorry, Ascensia Diabetes Care’s) Contour Next Link meter, which I think is the best and most accurate meter I’ve ever used. It’s a great bit of kit and you just get used to reliability and accuracy. Check twice in quick succession with the Contour Next and you’ll get the same result.
Everyone goes into using the Libre with their eyes wide open – we all know that interstitial readings will lag behind capillary. We all know it could be a bit wonky. But, in practice, I want accuracy – I want to know what’s happening with my glucose levels now and I want the results to be accurate, dagnabbit. I’ve compared the Libre’s results to my Contour Next and it’s not uncommon for them to be way apart, even when nothing much is happening blood-glucose wise.
I know I’m asking for the moon on a stick but my Libre / meter is my only source of data for deciding how much insulin I put in. Getting it wrong makes my BG go a bit high or a bit low. Mild inaccuracy is not going to kill me (calloused fingers crossed…) but it’s annoying to have to ;