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From Marengo, Illinois, USA:

My doctor diagnosed me with type 2 diabetes. My fasting blood sugar was 124 mg/dl [6.9 mmol/L], checked while I was at the doctor for a sore throat. My A1c level was 7.2, but I don't have any of the symptoms yet. I have a lot of energy, but I am about 60 pounds overweight. My mother was recently diagnosed. Wouldn't I be considered pre-diabetic? I thought the fasting blood sugar had to be over 126 mg/dl [7.0 mmol/L]. I don't want to be labeled a diabetic for future insurance reasons. I am following an exercise and diet plan to bring all of my levels down anyway, but I don't want to be a type 2 unless I officially am. Are there any rules to follow in a diagnosis? My doctor seemed to think that my diagnosis wasn't a big deal. I would like a second opinion.


I understand your concern. The diagnosis of diabetes is made on the fasting glucose values, not the A1c. There are other reasons why you can have a false positive A1c. There can be certain hemoglobin types that can be measured in the A1c assay. If that is a question, I would have your doctor measure a hemoglobin electrophoresis. You are correct that the diagnosis of diabetes is made by having more than one fasting glucose greater than or equal to 126 mg/dl. Without that, there is not a diagnosis of diabetes. An alternative would be to have a formal 75 gram oral glucose tolerance test. This could be carried out in one day and also provide the answer.


Original posting 28 Mar 2008
Posted to Diagnosis and Symptoms and Type 2


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Last Updated: Tuesday April 06, 2010 15:10:16
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