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ADA eAG Equation:
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The American Diabetes Association (ADA) eAG equation converts HbA1c percentage to estimated average glucose (eAG) in mg/dL. This provides patients with a more intuitive understanding of their average blood glucose levels over the past 2-3 months.
The calculator uses the ADA eAG equation:
Where:
Explanation: The equation provides a linear conversion from HbA1c percentage to average glucose levels, helping patients relate their test results to daily glucose measurements.
Details: Converting HbA1c to eAG helps patients better understand their diabetes control by translating the percentage into familiar glucose units (mg/dL) that correspond to their daily glucose meter readings.
Tips: Enter HbA1c value as a percentage (e.g., 6.5, 7.0, 8.2). The value must be greater than 0. The calculator will provide the estimated average glucose in mg/dL.
Q1: What is the relationship between HbA1c and average glucose?
A: HbA1c represents average blood glucose levels over the past 2-3 months. The ADA equation converts this percentage to an estimated average glucose value in mg/dL.
Q2: What are target eAG levels for diabetes management?
A: For most adults with diabetes, the target HbA1c is less than 7%, which corresponds to an eAG of less than 154 mg/dL.
Q3: How often should HbA1c be tested?
A: The ADA recommends testing HbA1c at least twice a year for patients who are meeting treatment goals, and quarterly for those whose therapy has changed or who are not meeting goals.
Q4: Are there limitations to this conversion?
A: The equation provides an average estimate. Individual variations in glucose fluctuations and red blood cell turnover can affect the accuracy of the conversion.
Q5: Can this calculator be used for diagnosis?
A: No, this calculator is for educational purposes only. Diabetes diagnosis and management should be done under medical supervision with proper laboratory testing.