The eAG test is actually not a test. It is another way of referring to the HbA1c or A1c test. The term eAG stands for estimated Average Glucose.
The American Diabetes Association has recommended the term as a way for physicians to provide Hba1c results in units that patients are more familiar with. The eAG units correspond more closely to readings provided via self-monitoring by at-home glucometers.
Many laboratories today are providing hbA1c results as eAG. This is why it is a common mistake to refer to it as the eAG test.
Learn more about the HbA1c or A1c test and look at our A1c and eAG Conversion Chart to get an idea of how these numbers translate.
Nathan MD, David M; Kuenen MD, Judith; Borg MD, Rikke; Zheng PHD, Hui; Schoenfeld PHD, David; Heine MD, Robert J for the A1c-Derived Average Glucose (ADAG) Study Group. "Translating the A1c Assay Into Estimated Average Glucose Values." Diabetes Care Aug 2008 31(8):1473-1478