Fri, Oct-14-16, 15:20
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Senior Member
Posts: 877
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Plan: Dr. Bernstein, low carb
Stats: 200/178/155
BF:
Progress: 49%
Location: Southern California
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Frustrating to be expecting a better result than you end up getting at the doctor's office. Espcially as you are diligently working the program, trying to make changes based on an inaccurate number.
The problem with all of the meters is they are only accurate within 10pts in either direction, so there will always be fluctuations. Heck you can even test 2 times in a row with the same meter using same finger, different drops of blood and get variation.
This article explains how they work and what affects a good reading or not:
Why glucose meters can't tell us our blood sugar level
The other factor too is that your A1c is a reflection of "continuous" BG, rather than your meter being a snapshot of the various times you test, so the meter is likely to not match exactly with your lab results. A1c is also affected by how fast your red blood cells turn over. I think it is that the faster the turnover, the less chance the cells become glycated, so you get a lower A1c.
I use the Ultra One Touch mini which was given to me at the doctor's office. It tracks maybe a bit lower than my lab tests, about 5pts maybe. But for me, I figure if I'm trending the right direction, then I'm ok. I'm not on insulin though, I can't remember if you are or not.
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