Hello. I recently was told I am pre diabetic. I have been monitoring my sugar 1 hour and 2 hours after my meals. It is always below 140. It has been as low as 105. After fasting It has been as high as 123, and as low as 94. what gives?

Amy Campbell


Prediabetes is generally diagnosed in one of three ways: a fasting blood glucose check, a hemoglobin A1C check or with an oral glucose tolerance test (OGTT). All three of these tests must be performed in a lab or doctor’s office. Prediabetes is diagnosed if the fasting glucose is between 100 and 125 mg/dl; the A1C is between 5.7 and 6.4%, or the OGTT result is between 140 and 199 mg/dl 2 hours after drinking a glucose drink. The test should be repeated on another day to confirm the diagnosis. With that said, it’s normal for blood glucose levels to fluctuate at various times of the day. Your body still makes insulin but doesn’t always use it as well as it should to keep your blood glucose within the recommended range. This means that your blood glucose readings will be “normal” at times and on the higher side at other times (often, after eating). While it’s helpful to check your blood glucose at home, it’s even more important to have regular visits with your doctor who can keep tabs on your glucose and/or A1C results and, if needed, start you on a more aggressive treatment plan.

November 24, 2013 at 3:30 pm