Yes, I've read a few papers saying the libre isn't as accurate if you're high or low, which is exactly why the training includes instructing users to do a capillary blood test if the libre says you're high or low.
It is also worth remembering that things like hydration and libre location play a role. There are a number of documented cases where the sensor records a low reading when it is under pressure, which is worth remembering if you sleep on your side for example!
Seems I'm also a lucky one in that whenever I've done a capillary test, waited 10 mins to allow for the diffusion delay, then scanned, they have matched (within 0.1 mmol of each other)! Annoyingly as with many diabetes related remedies some people get on fine and have almost textbook responses and others try their hardest but aren't as lucky! So very annoying, but I'm happy to be amongst the lucky ones in this case!
Also - my GP surgery always does HbA1c and current glucose as standard every 6 months, then usual annual 'extras' as necessary when bloods get sent to the lab. Perhaps case of different CCGs having different standard tests?
It is also worth remembering that things like hydration and libre location play a role. There are a number of documented cases where the sensor records a low reading when it is under pressure, which is worth remembering if you sleep on your side for example!
Seems I'm also a lucky one in that whenever I've done a capillary test, waited 10 mins to allow for the diffusion delay, then scanned, they have matched (within 0.1 mmol of each other)! Annoyingly as with many diabetes related remedies some people get on fine and have almost textbook responses and others try their hardest but aren't as lucky! So very annoying, but I'm happy to be amongst the lucky ones in this case!
Also - my GP surgery always does HbA1c and current glucose as standard every 6 months, then usual annual 'extras' as necessary when bloods get sent to the lab. Perhaps case of different CCGs having different standard tests?