Random question on the sensor, does anyone have really inaccurate readings at times? I checked my libre and it said I was sitting at 15.0 but my blood glucose test was 8.0? I have also at times seen it showing LO or around 3 but blood glucose test is around 4-5? Any idea why this would happen? Thanks
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Libre sensor results?
- Thread starter DavidG89
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SB2015
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I find mine reads higher than I am when I am high and lower when I am low. However this could be because there is a time lag of about 10 min as they are measuring different things. However your differences seem to be further out than usual. It would be worth making a note of the comparisons, and to give Abbott a ring. They have always replaced any that have caused problems for me. Having said that I have only needed to send a couple back for this reason, over a very long time.
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I‘ve split your post into it’s own thread so that you get more responses @DavidG89
My experience is that I usually get very usable data from Libre sensors, which aligns well enough with blood glucose readings for me to be fairly confident that the results are in the same ballpark.
However I wouldnt expect them to be the same all the time.
The 2 devices are reading different things, and as @SB2015 says sensor glucose is likely to ‘lag’ behind capillary blood by 5-10 minutes.
Plus fingersticks have their own levels of inaccuracy, variability and rogue results, of course, so if there are differences, its important to remember that either or both could be slightly ‘out’.
Abbott do have an expected Mean Absolute Relative Difference for sensors though, so if you have. sensor that seems to be giving you very wonky results when compared to your blood glucose meter (particularly if it happens to be a Freestyle meter!) it is worth calling them so that they can troubleshoot it, and most likely replace it.
My experience is that I usually get very usable data from Libre sensors, which aligns well enough with blood glucose readings for me to be fairly confident that the results are in the same ballpark.
However I wouldnt expect them to be the same all the time.
The 2 devices are reading different things, and as @SB2015 says sensor glucose is likely to ‘lag’ behind capillary blood by 5-10 minutes.
Plus fingersticks have their own levels of inaccuracy, variability and rogue results, of course, so if there are differences, its important to remember that either or both could be slightly ‘out’.
Abbott do have an expected Mean Absolute Relative Difference for sensors though, so if you have. sensor that seems to be giving you very wonky results when compared to your blood glucose meter (particularly if it happens to be a Freestyle meter!) it is worth calling them so that they can troubleshoot it, and most likely replace it.
nonethewiser
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Not had issues for while since software update, before that readings way out. Told dehydration can cause inaccurate readings as can lying on sensor.
I've had the odd wacky reading - a few times 24 hours or so after I have started a new sensor. Typically says I am hypo when I'm not. I can feel the difference so check with a finger prick test (always worth keeping one of those handy). I agree with the point earlier - if the sensor seems dodgy, ring Abbott and they will replace it which at least is a financial comfort...
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