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Why Is Glucose Reading Different In Different Fingers

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The Glucose Meter Shuffle.

I have several One Touch meters, a Freestyle one, and a Dexcom continuous glucose monitor that I consult on a regular basis. (Not usually at the same time, but I have been doing multiple checks recently. More on that below.) I also have an Agamatrix meter and an Accu-chek one, somewhere in the diabetes cupboard in the bathroom, only without any strips that aren't expired. And I have a lot of anxiety when it comes to glucose meters. The variability of these machines makes me crazy in the head, and it caused me a lot of grief when I was pregnant, because my blood sugar goal range at that point was so tight and so specific, and any variability was huge for me. (I shared some samples of wonky results in this post.) In the last few weeks, I've been doing some experimenting with my meters, inspired by at-home research conducted by Stacey at The Girl with the Portable Pancreas. It's an messy process, which includes testing with several meters at one and trying to grab a photo. It's also messy because it involves the people at One Touch (because they provided me with some spare strips after I spoke with them about my meter issues and I have a running dialog with them about this problem), m Continue reading >>

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Popular Questions

  1. rav2016

    I observed that the size of the blood drop changes the meter reading. When I checked a tiny sized blood drop (just large enough to get a reading) and a sizeable blood drop (two to three times larger than the tiny one) gave me two different meter readings. Which of these is a better indicator of the true blood glucose level?

  2. alan_s

    rav2016:
    I observed that the size of the blood drop changes the meter reading. When I checked a tiny sized blood drop (just large enough to get a reading) and a sizeable blood drop (two to three times larger than the tiny one) gave me two different meter readings. Which of these is a better indicator of the true blood glucose level?
    What were the numbers? It may depend on your meter.
    The only difference I have ever noticed is an error message if the drop is too small. My present meter (Freestyle Lite) uses such a tiny drop that error is rare.

  3. MariaFan

    I use a Bayer Contour USB.
    One time I didn't get a very big drop and the meter gave me a notice for more blood.
    When I stabbed myself again, the reading came back at 58.
    Stabbed yet one more time with a new strip and... viola... an 75 or so.
    I prefer to have a nice, big drop all the time, but sometimes my hands are cold and I forget to warm them up before the stab.

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