Are Elevated Hba1c Levels Signs Of Diabetes?
You can do a glucose tolerance test
Welcome to HCM. I have gone through your questions and understand your concerns.
HbA1c if not done in a good lab may show abnormal values.
Do an oral glucose tolerance test. Do fasting blood glucose, take 75 gram of glucose powder and check blood glucose every hour for 3 hours.
If your fasting sugar is less than 100mg/dl and all the three after food blood glucose are less than 140 mg/dl, you should repeat the HbA1c in a better lab.
If HbA1c is still high you should do a continuous glucose monitoring (CGMS) to confirm you are diabetic.
Hope I have answered your questions. If you have any further questions, I will be pleased to help you.
Dr Ajish TP
See detailed answer
If HbA1c levels are high it should reflect in blood sugars.
The possibilities of high HbA1c with normal blood sugars are
1. Lab error ( most common)
2.You are having high blood sugars at evenings or at times we are not doing lab tests for sugar.
3. B12 or folate deficiencies ( rare causes of high HbA1c)
So I feel you should have your HbA1c rechecked in a good lab.
Dr Ajish TP