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Diabetes

Question
Posted by: | 2019/01/07

Q.

Fasting glucose and insulin high

Good day Dr. I am overweight - with a pregnant looking belly. I decided for interest sake to do a blood test for my fasting glucose levels as a starting point and to test again in six months to see what a difference dieting made. I got my results as fasting glucose 6.9. My insulin level is 20 and the HOMA index is 6.13. Would I need to see my Physician at this point or is it ok to eat healthier and exercise and maybe test in three month's time and if still high then consult my Physician? I am on a few chronic medications as well and not sure if it can have an impact on my blood glucose level. There is a family history as my father and grandmother (mom's side) had diabetes. I am a 43 year old female. Thank you.

Expert's Reply

A.

Diabetes expert
- 2019/01/09

Hi

You would need to see your doctor, as your glucose will need to be further evaluated. Your current level is very firmly in the pre-diabetic range and just below the diabetic cut-off of 7. According to SA guidelines, a fasting laboratory glucose (done in the morning after fasting for 8 hours) is considered normal if it is less than 6.1, pre-diabetes if it is between 6.1 and 7, and diabetes if it is 7 or more. Normally we would want two abnormal results, or one abnormal result with associated symptoms like tiredness, weight loss, drinking lots of water and passing too much urine. The other way to test glucose is to do a glucose tolerance test where you go to the lab fasting and they give one 75grams of glucose to drink in water and then test your glucose levels after 2 hours. The cut off for diabetes is a level of 11.1 or higher at 2 hours and normal is less than 7.8. Between these two levels is considered pre- diabetes. Some patients will be normal on one test and abnormal on another, so sometimes we may do  both

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