Answer: HbA1c is done over a period of 2-3 months. So fasting for 12 hours is not an indication of accuracy for your A1c. Another reason that your A1c might be high is due to other medical conditions present that may have affected your hemoglobin in the blood. Examples of conditions that could affect the A1c will be Uremia (kidney failure), Chronic Excessive Alcohol Intake or Hypertriglyceridemia.
You should consult with a credible Endocrinologist in testing your HbA1c to check and see if you are in the stage of pre-diabetes. For the mean time, it is best to eat right, and engage in exercise to increase blood volume and further prevent having diabetes.
