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Does high red blood count affect hbA1C

Discussion in 'Ask A Question' started by nanabon, Aug 11, 2020.

  1. nanabon

    nanabon Other · Member

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    Hi All,

    Just got a1c results and they were higher than expected. I use a CPAP machine and have an abnormally high haemoglobin count due this. As its the glycated haemoglobin that is measured to get the hbA1C, I wonder if anyone knows how a high haemoglobin count might affect the hba1c result.
     
  2. LaoDan

    LaoDan Type 2 · Well-Known Member

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    Probably since the inverse is true.
     
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  3. Bluetit1802

    Bluetit1802 Type 2 (in remission!) · Legend

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    An elevated HbA1c can be caused by an abnormally slow turnover of haemoglobin - when our red blood cells live longer than the average life expectancy of them. Similarly, those who have a faster turn over of red blood cells are likely to have lower than expected HbA1c levels. The usual life of red blood cells is around 120 days, which is what the HbA1c is based on. Personally, I have never heard of a high haemoglobin count as being a factor.
     
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