An A1C test measures the average amount of sugar in your blood over the past three months. Providers use it to diagnose diabetes and monitor diabetes management.

May 15, 2024 · The A1C test—also known as the hemoglobin A1C or HbA1c test—is a simple blood test. Your A1C is used to diagnose prediabetes and diabetes, and monitor your progress.

What Is the A1C Test? The A1C test can be used to diagnose diabetes or help you know how your treatment plan is working by giving you a picture of your average blood glucose (blood …

Feb 22, 2025 · For people living with diabetes, the test checks how well they manage blood sugar levels. The A1C test also is called the glycated hemoglobin, glycosylated hemoglobin, …

Learn what the A1C test is, how it works and is used to diagnose and monitor type 2 diabetes and prediabetes, when it doesn’t work, and how A1C relates to eAG.

Dec 14, 2025 · The A1C test is a simple blood test that shows your average blood sugar levels over the past two to three months. It’s commonly used to diagnose prediabetes, type 1 …

Apr 29, 2025 · This guide explains what A1C is, what counts as a normal or dangerous A1C level, and how you can lower your A1C through healthy lifestyle changes and, if needed, with …

Oct 1, 2025 · The A1C test measures blood sugar levels over the past two to three months. Normal A1C levels are lower than 5.7%, while 6.5% or above indicates type 2 diabetes.

Jun 30, 2025 · Hemoglobin A1c (HbA1c) is a measure of average blood sugar. Learn how it’s measured, what’s considered normal HbA1c, what HbA1c level you’ll want to target if you …

Jul 7, 2025 · An A1c test is a blood test that checks your average blood sugar level over the past 2 to 3 months. This test also is called a glycohemoglobin test or a hemoglobin A1c test. The …