Chris Bowsher
Well-Known Member
- Messages
- 207
- Type of diabetes
- Type 1
- Treatment type
- Insulin
I find there is inconsistency between Libre and finger prick. Last 3 months I only relied on Libre and found that my reading had gone from 51 to 54. I have now decided to use both and hopefully have a better controlMy partner is Type 1, diagnosed 7 months ago aged 44. He has been using the Libre and is due to change it tomorrow. His levels have been mostly consistent with finger pricks until the last 2 days when they are 4-5 points out. Has anyone else experienced this? We are hoping the problem will resolve when we change it tomorrow, but are nervous to trust it now...
They were pretty upfront about the 15 minute delay whenever I spoke to them, and yes it does explain the 15 minute delay.Excellent video. It is interesting that the people at Libre do not seem to want to discuss this.
Does this explain the "15 minute delay" which is discussed here?
I don't trust uncalibrated Libre sensors!My partner is Type 1, diagnosed 7 months ago aged 44. He has been using the Libre and is due to change it tomorrow. His levels have been mostly consistent with finger pricks until the last 2 days when they are 4-5 points out. Has anyone else experienced this? We are hoping the problem will resolve when we change it tomorrow, but are nervous to trust it now...
My partner is Type 1, diagnosed 7 months ago aged 44. He has been using the Libre and is due to change it tomorrow. His levels have been mostly consistent with finger pricks until the last 2 days when they are 4-5 points out. Has anyone else experienced this? We are hoping the problem will resolve when we change it tomorrow, but are nervous to trust it now...
I don't trust uncalibrated Libre sensors!
I only use the LibreLink app to activate new sensors, then I use xDrip+ for my readings as it forces you to calibrate the Libre sensor when assigning a new one. xDrip+ always matches my blood tests within 0.1 mmol, whereas LibreLink never matches and can be up to 3.5 mmol out. If you've an Android phone try xDrip+, it'll make a world of difference to your sensors accuracy.
I don't trust uncalibrated Libre sensors!
I only use the LibreLink app to activate new sensors, then I use xDrip+ for my readings as it forces you to calibrate the Libre sensor when assigning a new one. xDrip+ always matches my blood tests within 0.1 mmol, whereas LibreLink never matches and can be up to 3.5 mmol out. If you've an Android phone try xDrip+, it'll make a world of difference to your sensors accuracy.
Still I have no idea what it is.....
Also, you mention that one can calibrate the Libre system. Exploring the settings, I see that a test solution is used. How does one obtain said solution?
I wondering how much of that information is actually useful rather than thoughtful to look at.
Understood. I do not know much about T1. As T2, I really have only the low reading as a short-term/immediate problem. I can see how immediate status is valuable for those T1. I was not looking at the chart that way.
My partner is Type 1, diagnosed 7 months ago aged 44. He has been using the Libre and is due to change it tomorrow. His levels have been mostly consistent with finger pricks until the last 2 days when they are 4-5 points out. Has anyone else experienced this? We are hoping the problem will resolve when we change it tomorrow, but are nervous to trust it now...
Hi i am T 1 for 5 years 7 months . This is my 2nd freestyle and I think it's great I was pricking my fingers 8 10 times a day I have only checked it twice and been slight difference I could not get reader so I had to get I Phone 7 hope I can keep up the expense as you do not get it on NHS in perth shire. Good luck allUnderstood. I do not know much about T1. As T2, I really have only the low reading as a short-term/immediate problem. I can see how immediate status is valuable for those T1. I was not looking at the chart that way.
The advice I was given when I trialled the Libre was that it does not replace finger pricks: it supplements them.
The huge benefit of the Libre is to detect trends.
I was told I should not use it for calculating insulin doses and it is not allowed to use to test BG before driving.
The Libre uses a different mechanism to calculate BG - for a start, it doesn't use blood; it uses interstitial fluid. This gives a reading which is, typically, 15 minutes behind finger pricks (from blood).
Some people find the Libre incredibly close to finger pricks or consistently out by the same amount so they can always add a certain amount to the Libre readings.
Others find it less accurate. Unfortunately, I am one of these people. This may be because my BG changes quickly when I eat or when I exercise.
I also find the readings become less reliable the longer I have the sensor in. The sensor is less likely to be able to provide a reading over time: I suspect this is because with all my exercise, the little wire sensor has started to move around even though the transmitter part is firmly attached to me.
So, to answer your question: I have never experienced a change in accuracy over time.
But you should not be relying on the Libre anyway.
The trends should remain pretty much the same.
I suppose the sentence you have written -The Libre uses a different mechanism to calculate BG - for a start, it doesn't use blood; it uses interstitial fluid. - it doesn’t calculate BG at all it is the glucose levels in interstitial fluidThe advice I was given when I trialled the Libre was that it does not replace finger pricks: it supplements them.
The huge benefit of the Libre is to detect trends.
I was told I should not use it for calculating insulin doses and it is not allowed to use to test BG before driving.
The Libre uses a different mechanism to calculate BG - for a start, it doesn't use blood; it uses interstitial fluid. This gives a reading which is, typically, 15 minutes behind finger pricks (from blood).
Some people find the Libre incredibly close to finger pricks or consistently out by the same amount so they can always add a certain amount to the Libre readings.
Others find it less accurate. Unfortunately, I am one of these people. This may be because my BG changes quickly when I eat or when I exercise.
I also find the readings become less reliable the longer I have the sensor in. The sensor is less likely to be able to provide a reading over time: I suspect this is because with all my exercise, the little wire sensor has started to move around even though the transmitter part is firmly attached to me.
So, to answer your question: I have never experienced a change in accuracy over time.
But you should not be relying on the Libre anyway.
The trends should remain pretty much the same.
There is an algorithm which is used to approximate the BG from interstitial fluids. I have no ideas how it works (but Google probably has some theories). The Libre sensor/reader does the necessary calculations.I suppose the sentence you have written -The Libre uses a different mechanism to calculate BG - for a start, it doesn't use blood; it uses interstitial fluid. - it doesn’t calculate BG at all it is the glucose levels in interstitial fluid
How do you know what is accurate? How did you test the accuracy of the meter used?
Blood glucose levels are different around your body as is interstitial fluid. There is no direct correlation between them
Blood glucose levels are different around your body as is interstitial fluid. There is no direct correlation between them