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Type 1 Libre A1c

Discussion in 'Ask A Question' started by conniecar, May 7, 2022.

  1. conniecar

    conniecar Type 1 · Well-Known Member

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    I’ve recently had the best results ever recording on my Libre and blood monitor for staying in range, with the help of a fabulous nurse. So without bothering her…… why is my A1c ‘stuck’ and not coming down? It’s not very motivating. She’s set my range between 5 and 8.5 and I’m managing that 70% of the time. I know there’s a time span for overall readings, but in the past when I’ve managed to get my tests in good order I’ve been rewarded with better A1c’s? I’ve been checking for about a month.
     
    #1 conniecar, May 7, 2022 at 7:48 AM
    Last edited: May 7, 2022
  2. In Response

    In Response Type 1 · Well-Known Member

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    Hba1c is an average over three months so you will not see much movement after one month.
    Instead of focusing on something slow to move, I would focus on the great work you have done improving your time in range
    I have found the hba1c on Libre is very inaccurate. It uses a different method of calculation than blood tests and can be deceiving so have to decided to ignore it and focus on TiR.
     
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  3. conniecar

    conniecar Type 1 · Well-Known Member

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    Thank you! It’s been doing my head in!
     
  4. Marie 2

    Marie 2 LADA · Well-Known Member

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    Libre for me reads about 1 mmol higher a lot of the time. When I used to only wear a Libre even though I would account for that and dose accordingly I ended up always being higher? When I switched to a Dexcom that you can calibrate, my A1c went down. Obviously even though I thought I was allowing for it enough I really wasn't some of the time? I wear both now as I snorkel and the Libre reads underwater, and while sometimes the newer Libres are more accurate they still will read off a good amount of the time. I compare my Dexcom to my Libre before getting in the water to get an idea. But in the water I mostly look at my trending pattern on the Libre, because when I get out, it be within 1/3 mmol or 1 mmol of my Dexcom. My Dexcom I calibrate to within 1/3 mmol of accuracy.
     
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