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eAG Formula:
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The Estimated Average Glucose (eAG) calculator converts hemoglobin A1C percentage values to average blood glucose levels in mg/dL. This provides a more intuitive understanding of diabetes control for patients and healthcare providers.
The calculator uses the eAG formula:
Where:
Explanation: This linear equation provides an estimated average glucose level that corresponds to the A1C measurement over the previous 2-3 months.
Details: Converting A1C to eAG helps patients better understand their diabetes control by relating it to daily glucose measurements they are familiar with, improving diabetes self-management and treatment adherence.
Tips: Enter the A1C percentage value (typically between 4.0% and 14.0%). The calculator will provide the estimated average glucose in mg/dL.
Q1: What is the relationship between A1C and eAG?
A: eAG represents the average blood glucose level over the previous 2-3 months that corresponds to the measured A1C percentage.
Q2: What are normal eAG values?
A: For non-diabetic individuals, eAG is typically below 115 mg/dL (A1C < 5.7%). For diabetes management, target eAG is usually below 154 mg/dL (A1C < 7.0%).
Q3: How accurate is the eAG calculation?
A: The formula provides a good estimate for most individuals, but actual average glucose may vary due to individual variations in hemoglobin glycation rates.
Q4: Can eAG replace regular glucose monitoring?
A: No, eAG is derived from A1C and provides an average estimate. Regular glucose monitoring is still essential for daily diabetes management and hypoglycemia prevention.
Q5: Are there limitations to this calculation?
A: The formula may be less accurate in individuals with hemoglobin variants, anemia, recent blood loss, or other conditions affecting red blood cell turnover.