Can A1C be high and blood sugar low?
Yes, it is possible.
Last updated on 29 Mar 2023
It is possible to have high A1C levels without diabetes in rare cases. Iron, folate etc can also increase HBA1C levels.
Both are accurate. A1C gives the control for 3 months whereas fasting glucose will give the results for that particular day.
The best time would be in the morning or evening.
The difference is A1C is the mean average for 3 months of control of blood sugar levels. Whereas fasting blood sugar levels are of the same day.
Fasting blood sugar (in the morning, before eating) should be Less than 100 mg/dL. 1-2 hours after a meal should be Less than 140 mg/dL. And 2-3 hours after eating should be Less than 100 mg/dL
FBS, FBG, Fasting Blood Sugar
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