Dodgy data using FreeStyle Libre 2+?

[Matthew McEachran]

Ok let's do a straw poll - who else is getting dodgy Libre data please? I've been using Libre for years, since before they were available on the NHS. But I'm having doubts about reliability/accuracy. I've just had to remove a 2+ sensor because readings were wrong. It was telling me I was hypo when I wasn't. Consequently I went hyper after reacting to the false data. I was sceptical because I was feeling fine, so checked using blood tests (8.8 not 2.9!!!l). I'm considering moving to DEXCOM. Any views?

 

[Rachox]

Were you asleep and lying on the Libre when it reported the low? I don’t know if you are aware of compression lows, caused by squashing the sensor. I’m just switching from Libre 2 plus to Dexcom One + purely because I self fund and Dexcom’s subscription will work out much cheaper for me. I was actually quite happy with the Libre 2 plus.

 

[Jaylee]

Hi,

I’ve been using them for a number of years too.
Can’t say I’ve had any issue with either the L1 L2 or L2+.

But what I did discover when first using them (especially as a CGM set up.) was it would alarm low & i’d put the alarm on snooze. (I also use 3rd party apps.)
Then sure enough, 10 minutes later, “hello, I feel low.” Check & there I was.
I use this heads up early warning to treat with a minimal amount of carbs to take the edge off a proper hypo.

The lag I get from interstitial fluid readings as I come back up into range is another thing..
But I can live with that.

If you’re having consistent issues with yours? It’s worth a chat with your diabetic team..

Best wishes.

 

[Lakeslover]

They are reasonably accurate for me. Standard advice is to check with a blood test before acting on a high or low alarm.

If yours is that far out I would call Abbott or fill in their online form. They will usually replace a faulty s nor.

 

[Matthew McEachran]

Were you asleep and lying on the Libre when it reported the low? I don’t know if you are aware of compression lows, caused by squashing the sensor. I’m just switching from Libre 2 plus to Dexcom One + purely because I self fund and Dexcom’s subscription will work out much cheaper for me. I was actually quite happy with the Libre 2 plus.

thanks for replying, yes I had heard about compression affecting results from my brother. but this wasn't a factor here.

 

[Matthew McEachran]

Hi,

I’ve been using them for a number of years too.
Can’t say I’ve had any issue with either the L1 L2 or L2+.

But what I did discover when first using them (especially as a CGM set up.) was it would alarm low & i’d put the alarm on snooze. (I also use 3rd party apps.)
Then sure enough, 10 minutes later, “hello, I feel low.” Check & there I was.
I use this heads up early warning to treat with a minimal amount of carbs to take the edge off a proper hypo.

The lag I get from interstitial fluid readings as I come back up into range is another thing..
But I can live with that.

If you’re having consistent issues with yours? It’s worth a chat with your diabetic team..

Best wishes.

thanks for your reply. I agree, there is normally a lag from the CGM of up to 10 minutes, which I can live with too. so long as the readings are accurate its fine.

 

[Matthew McEachran]

They are reasonably accurate for me. Standard advice is to check with a blood test before acting on a high or low alarm.

If yours is that far out I would call Abbott or fill in their online form. They will usually replace a faulty s nor.

thanks for your reply, yes I've reported it to Abbott who are generally pretty good with replacing any faulty sensors. Let's see what they say here given how inaccurate the sensor was.