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A1c (Glycohemoglobin, HgbA1c)

I am baffled by the ADA recommendation, one that is oft cited by the Ask the Diabetes Team members, that an A1c (or glycosylated hemoglobin) should be less than 1% above the upper limit of normal for the lab performing the test.

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I would like to know more about the A1c test. What is it? What does it test for? How does it differ from the glucose tolerance test? Is the A1c test considered to be the “final authority” on determining if one has diabetes or not?

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I was wondering if when an HbA1c is checked, does it make a difference if the hands are clean (i.e., no residue of sugar)?

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What does an A1c of 6.0 mean for a 34 year old female? My doctor said it is not a concern, but when I read the laboratory results, it was flagged as out of range.

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The averages from my son’s meter show that his A1c should be at the level we are attempting to achieve, but his A1cs are much higher. We finally had a 72 hour glucose monitor put on him, and, after the results came back, the doctor admitted that my son has been doing everything right. Do you have any suggestions as to what to do? Has anyone else had this happen to them?

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My 16 year old has had type 2 for five years and takes metformin. His A1c/blood sugars have gone up despite increasing his metformin. Why would this be?

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When his bedtime blood sugar is less than 150 mg/dl [8.3 mmol/L], my son wakes with elevated blood sugars. Why is this? How can we prevent this? Our overall goal is to bring down his A1c.

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What are the effects of a high A1c on my teen daughter’s body? Also, she smokes and has used drugs.

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My teen daughter’s blood sugars, A1c and weight have all gone up in the last year. Will her weight and blood sugars decrease when she starts menstruating?

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Three months after her diagnosis, my daughter’s A1c was 5.6. Is this acceptable? Is it an average of blood sugars or something else? Is it okay to give both Humalog and NovoLog on the same day?

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