I don't get your comment about using your Libre for 50 - 100 times a day.
Do you mean you have been scanning it that many times and have calculated your predicted Hb1AC based on the value at the time of your scan?
The Libre sensor in your arm is regularly testing your BG based on your interstitial fluids (slightly different to the glucose in your blood but close). Unfortunately, I cannot find anywhere online which states how often it does this test. It stores the last 8 hours of results on the sensor. When you scan the sensor, you are downloading the last 8 hours of data. If you scan less often than 8 hours, you will miss some data because the sensor only have enough memory for 8 hours.
Back to my confusion around your 50 - 100 uses per day: you have more than 100 data points downloaded to your reader. If the sensor tests every 5 minutes, you have nearly 300 data points per day.
Apologies if I have misunderstood your statement. I find it frustrating that many people do not seem to understand the power of the Libre: it is in its history and trends not single point-in-time readings. Using a Libre as a replacement for finger pricking is like using a Smart Phone just to make phone calls. If the NHS is to get any value from prescribing Libre, I believe they should invest in some education of the users.
<Sorry, I didn't mean to hi-jack this thread for my soapbox>
Hi - to clear up the confusion, I'm scanning 50-100 times per day. I then download the information from the libre to my computer and the software comes up with an estimated Hb1AC based on the readings. You have cleared up some confusion though - namely that the sensor is regularly testing - I only thought it tested when you scanned. This explains why I am seeing results overnight that I do not recognise. Thank you for clearing that up.
FYI Metformin is not prescribed to lower blood glucose. Your numbers will have come down due to your change in diet and excercise regime. So, well done, keep it up.
@Diabeticliberty just looking at those pictures, and I know they are fairly old if the date and time is anything to go by, but those graphs indicate a failed sensor, having flat red lines, and sharp drops and gaps does suggest this and I wouldn't trust the readings one bit and call it in to Abbott.
Having flat red lines is't a sign of a failed sensor or if it was then the past 5 sensors I've used are all failed. It's normal for me. Red for me is 3.8 btw.
Having flat red lines is't a sign of a failed sensor or if it was then the past 5 sensors I've used are all failed. It's normal for me. Red for me is 3.8 btw.
Was diagnosed T2 back in June and had an hbA1c of 67 mmol/mol (10.6%).
Just retested at my GP surgery and it's down to 42 mmol/mol (7%).
I'm absolutely chuffed and put this down to 500mg of Metformin twice a day, lots of exercise and reducing my carbs and sugars considerably.
One thing I was disappointed with though is that I've been using the Freestyle Libre for about 3 months and this was predicting an hbA1c of 32 mol/mol (4.9%). I've literally been using it 50-100 times a day, so have been really surprised that it is clearly testing so low.
Kind of makes me question the libre's effectiveness, other than to measure up and down trends.
Had it been 32 (4.9%), then I'd have considered dropping one of the Metformin tabs and continue monitoring with the libre - but now I'm thinking I should maybe keep to taking both doses and just drop the libre use, and wait for my next appointment with the nurse in March.
Anyone got any thoughts or advice on this?
Hi Blackcat, a friend and I are developing a monitoring and reporting service for diabetics. I am looking to get some anonomised blood glucose profiles. I came across this post and wondered if you would be happy to share your data with me? Apologies if this is in the wrong area. RussHi - to clear up the confusion, I'm scanning 50-100 times per day. I then download the information from the libre to my computer and the software comes up with an estimated Hb1AC based on the readings. You have cleared up some confusion though - namely that the sensor is regularly testing - I only thought it tested when you scanned. This explains why I am seeing results overnight that I do not recognise. Thank you for clearing that up.
The Libre I feel is just good for measuring variance. First thing in the morning it correlated well with my regular readers.
I have posted previously how worrying the inaccuracies are. I think they should have a means of calibrating.
That's right.I looked up stuff about the sensor and I don't want to do it again but from memory it reads every 15 minutes for 8 hours when it starts to overwrite the first reading. If you leave it for more than 8 hours without scanning then you lose data.
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