Earlier quoted context omitted.
My story / anecdata. About 6 months ago there was a posting about Ozempic and I had said something to the effect that it wasn't worth it watching some of the side effects my wife had from it. And then I went to the doctor for a check-up and lo and behold I had diabetes. Asymptomatic, but an A1C of 11. My doctor re-ran the test because he didn't believe it and it doesn't run in my family. My cholesterol had also jumpe…
Out of curiosity, do you drink much water each day? I'm kind of wondering if the people having a bad result don't drink enough water each day to clear out their systems? Yeah, that's a simplistic take... but still, curiosity. :)
Dehydration is not a confounder for an A1c test since the percentage is relative to the hemoglobin present. The primary confounder to A1c are blood disorders such as hemolytic anemias that lower the normal lifetime of RBCs or proportion of HbA. And this tends to falsely lower the A1c.
A person with an 11% A1c is also likely drinking quite a bit (whether they notice it or not) because at that point the chronically elevated glucose is elevating serum osmolality to increase urination.