• Guest, the forum is undergoing some upgrades and so the usual themes will be unavailable for a few days. In the meantime, you can use the forum like normal. We'd love to know what you think about the forum! Take the 2025 Survey »

Anyone having big reliability issues with Freestyle Libre 2 Plus sensors?

Jasmin2000 said:
Been there, done that.
Dexcom (right arm) was closer but lower than the Glucometer. but within acceptable error (given that there's a margin of error on both). Libre2 (left arm) was consistently lower and way off during exercise and other rapid BG changes.

The technologies are similar and the differences, especially the Libre's tendency to over-report at lower levels is due to the different algorithms. Abbott have said that the Libre will underestimate BG on purpose, as it adds an element of safety. Unfortunately, that causes me to hit 2.9 on sprints while Dexcom is still at 4.5 and glucometer at 5.5.


That's a great reminder - we're having the discussion on real time BG measurements and algorithm errors because of the technology. Some years ago I would have sprinted, relied on a few glucometer tests and my hypo awareness. Way less risky now
Click to expand...
 
I’ve received my Dexcom One + free trial sensor. I haven’t started using it yet, but have read through some of the information provided. There is a facility to calibrate the sensor against a blood glucose meter reading. The instructions state that this should only be done when your blood glucose is stable and the trend arrow is level. This may be useful where people have constant differences between sensor and glucose meter readings.
 
Okay, I win the "Big Reliability Issue with Freestyle Libre" contest. My extremely low readings were crashing the sensors and doctor advised me to go to A&E, as surgery was closed, I didn't have a fingerprick meter, and had tried a tbsp of maple syrup (yum), buttered white sourdough toast, and didn't take meds in effort to raise it. At the hospital, when my cgm reading was 2.9, my fingerprick was 9.9!!! The cgm shortly after went down to 2.2 before again crashing to 'below reading' level.
 
I've had two recently which have turned out to have no needle. Yes, they replace them but I'm also having a lot of ''temporary sensor problems'' where there is no reading. I've been using Libre2 plus since October last year, and I think they are getting less and less reliable. Thinking of trying Dexcom instead.
 
golden oldie said:
I've had two recently which have turned out to have no needle. Yes, they replace them but I'm also having a lot of ''temporary sensor problems'' where there is no reading. I've been using Libre2 plus since October last year, and I think they are getting less and less reliable. Thinking of trying Dexcom instead.
Click to expand...
No needles, crikey, that’s terrible quality control! I just hope they’re not being manufactured in a shed somewhere in China. Dodgy phone chargers with no fuse are bad enough! I suppose no needles is better than a needle disappearing in your arm never to be seen again.
 
I have been using Libre2+ for a while now and haven't had any total failures.
I do have periods where there is signal loss (can be up to a couple of days worst case) but the sensor always scans and the signal comes back eventually.
Noting that I am a self funding T2.
 
Back
Top