I tried to match the testing method employed by Chris (author of the original post ) as closely as possible. ![]() Some were old, some were new one was my own personal meter that I used to calibrate my CGM and make mission-critical decisions each day.Īll of them passed their respective control solution tests, so it's safe to assume that they were in good working order. I should mention my favorite blood glucose meter is available here. Below I describe the test and discuss the results. So, I decided to run my own test on the 10 best glucose meters from various manufacturers. Nevertheless, if I'm calibrating my CGM with a meter whose results are always off by that much,how can I be sure about reaching my targets?! I was also skeptical when I saw Chris' post because my A1C has always matched my predictions (based on my CGM average). īefore I go on, I should mention your average blood glucose on your meter might not always correspond with your A1C results - and that doesn't necessarily mean your meter is bad! For example, the meter-calibrated CGM data would correspond to an A1C of 6%, but laboratory-measured A1C would actually be 7%.Īs someone who wears a CGM and always strives to achieve an A1C of 6.0% or lower, this post freaked me out. Hannemann had been using one of those meters to calibrate his continuous glucose monitor (CGM) and consistently found that his lab-measured A1C would come in a full percentage point higher than his CGM average would predict. The overall variability between the meters studied by Hannemann was roughly ☑1%, and two of the meters-both from the same manufacturer-showed major bias. ![]() ![]() Chris Hannemann, who has type 1 diabetes and is an OpenAPS'er, tested five of the best blood glucose meters for accuracy and found major discrepancies. On the hunt for the most accurate blood glucose meter? This post is for you.īelow, we put 10 of the best blood glucose meters on the market to the test to find which is the most accurate blood glucose meter.įirst things first: Let’s talk about accuracy and blood glucose meters.Ī few months ago, I read a post on blood glucose meter (in)accuracy that was quite alarming.
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