Estimated Average Glucose (eAG) From HbA1C
Estimates an average glucose level from Hemoglobin A1C value.
Enter HbA1c value in percent (%) for output of estimated average glucose in mg/dL (mmol/L).
Advice
- Knowing an estimated average glucose can allow clinicians to share a target for self-monitored glucose levels in terms that are familiar to patients.
- Always compare HbA1c and available self-monitoring glucose data. While there is some room for individual variation in red blood cell lifespan and glucose uptake, significant discrepancies may require investigation of red blood cell turnover issues.
- If HbA1c is considered unreliable due to an underlying medical condition, alternative tools for longitudinal glucose surveillance include the glucose management indicator (GMI) on a continuous glucose monitor (CGM), fructosamine, glycated albumin, and 1,5-anhydroglucoitol tests. Consult an endocrinologist for further guidance.