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Finally got A1 c results back - surprisingly high

Wednesday, April 23, 2014

Given that my daily blood sugars, both before and after eating, had improved a lot, the results from my Hemoglobin A1c test (the mail-in type from Walmart) were surprisingly high at 6.3, which is higher than my last test at the doctor's office had been a month earlier.
I was looking for possible reasons, because I thought it is unlikely that I have low fasting morning readings and fairly low levels throughout the day (usually under 110 after eating) but have an A1 c level that high. One possibility could be that the lab only received my test after almost 3 weeks and I have no idea why. When I called they said that they had not received it and the post office was 10 business days behind. After checking with my local post office I was told this was indeed possible. This may mean that the test was only done when the blood sample was too old. It is also quite possible that this would be a normal error margin for an Ha1c test, in particular from different labs.
But I found another possible answer which was on Chris Kresser's blog:


Edit: I just did some more research and found this reference about reliability of A1c tests:

I'm curious if anyone else has had discrepancies of daily readings and Ha1c values.

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    There was also a comment somewhere toward the beginning about A1C being a good diagnostic tool alternative but not superior to checking blood glucose.
    1459 days ago
  • SKATER787
    Thanks Birgit for the links. I've decided that it's no big deal for me at 6.2, as I'm a lower carber, not a low carber. I'll find out more when I get into frequent BG testing. Until then, this is no rush nor a race to the lowest numbers for me. I'll take my time and enjoy my food. I concentrate on superfoods and the amount of carb is about the last thing on my mind. Had I seen 7 or 8, that would have been a different story. I'll try the supplements to maintain my current diet and test again in a couple of months (to save money) emoticon

    P.S. Read some of the feedback on the link you gave, there are just too many variables. Some people who reported numbers less than 5, could have much better liver or gut microbe or both. It's not just simply how many carbs you're eating or your PP BG levels. Too many variables!
    1459 days ago

    Comment edited on: 4/23/2014 7:41:24 PM
    You hit on the 2 possibilities that entered my head. The age of the test specimen does affect the outcome for sure. I was told long ago that I had scleroderma UNTIL I inquired about the age of the specimen tested . . . 48 yrs. Well, hey folks, let's try again, only in a timely manner! Guess what . . . negative. So that, along with the margin f error, could account for it.

    Have never used a mail-order lab before myself. Guess after your experience I won't jump into it either!

    `*•.¸ ♥ ¸.•*´¨☆¨`*•.¸ ♥ ¸.•*´¨♥¸.•*´¨☆(¸.•´¨`¸•
    *¨♥ *`*•.¸☆´¨`*“
    "Happiness is when what you think, what you say, and what you do are in harmony.” Mahatma Gandhi
    ,¨`*•.¸ ♥ ¸.•*´¨☆¨`*•.¸ ♥ ¸.•*´¨♥¸.•*´¨☆(¸.•´¨`¸• *¨♥ *`*•.¸☆´¨`*“

    1460 days ago
    I don't know, but I enjoy learning along with you!
    1460 days ago
    Never used mail order labs.
    1460 days ago
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