{"id":"estimated-average-glucose","name":"Estimated Average Glucose (eAG)","shortName":"eAG","aliases":["eAG","Estimated Average Glucose","Mean Plasma Glucose","Estimated Avg Glucose","Est. Average Glucose (eAG)","ADAG","eAG (mg/dL)"],"abbreviations":["eAG","ADAG"],"loinc":[{"code":"27353-2","primary":true},{"code":"53553-4","primary":false}],"specimen":"calculated","units":[{"ucum":"mg/dL","display":"mg/dL"},{"ucum":"mmol/L","display":"mmol/L"}],"referenceRanges":[{"population":"Adults","low":null,"high":116,"unit":"mg/dL","unitDisplay":"mg/dL","note":"Not an interval published by a lab: the Labcorp and Quest test directories list A1C intervals only (Quest: below 5.7%). It is the A1C cut point below the ADA prediabetes range (below 5.7%) converted with the ADAG equation, 28.7 x 5.7 - 46.7 = about 117 mg/dL (6.5 mmol/L), so results up to 116 fall below it. Labcorp's own A1C interval stops at 5.6%. An eAG of 117 mg/dL or more corresponds to an A1C of 5.7% or more.","sources":[{"title":"2. Diagnosis and Classification of Diabetes: Standards of Care in Diabetes-2026","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC12690183/","publisher":"American Diabetes Association (Diabetes Care)","year":2026},{"title":"Translating the A1C Assay Into Estimated Average Glucose Values","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC2742903/","publisher":"Diabetes Care (A1C-Derived Average Glucose study group)","year":2008},{"title":"Hemoglobin A1c (test 001453)","url":"https://www.labcorp.com/tests/001453/hemoglobin-hb-a1c","publisher":"Labcorp"}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"eAG restates your A1C in the same units as a glucose test, to show roughly what your average blood sugar has been over about 3 months.","url":"https://bloodtesttracker.com/markers/estimated-average-glucose","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}