From Monterey, California, USA:
I had an A1c done at my last physical. It was at the high end of normal, 5.8%. Due to this high level, I asked my physician for a two hour Oral Glucose Tolerance Test (OGGT). My fasting level was 90 mg/dl [5.0 mmol/L] and the two hour level was 104mg/dl [5.8 mmol/L] after the 75 gram drink. My physician has advised that this is completely normal. Is this true? I know that not eating enough carbohydrates can cause a false high result in the OGGT, but is there anything that could cause a false low reading? Why would my A1c be so high? I was under a lot of stress the month preceding the A1c.
That's why the A1c isn't used to diagnose diabetes. Your OGTT was normal, quite normal in fact. There are attributes of red cells that can give invalid A1c results. I really don't know why yours was as it was, but the GTT was quite normal. Stay active, fit, and maintain a good weight.
Last Updated: Tuesday April 06, 2010 15:10:08
This Internet site provides information of a general nature and is designed for educational purposes only. If you have any concerns about your own health or the health of your child, you should always consult with a physician or other health care professional.
This site is published by T-1 Today, Inc. (d/b/a Children with Diabetes), a 501c3 not-for-profit organization, which is responsible for its contents.
© Children with Diabetes, Inc. 1995-2016. Comments and Feedback.