A1C test - Mayo Clinic
Feb 22, 2025 · An A1C test result shows the average blood sugar level over the past 2 to 3 months. The A1C test measures what percentage of hemoglobin in the blood is coated with sugar, also called …
Hemoglobin: A1C Test, Range, and Normal Levels - WebMD
Jun 17, 2024 · The hemoglobin A1c test tells you your average level of blood sugar over the past 2-3 months. It's also called HbA1c, the glycated hemoglobin test, or glycohemoglobin.
A1C: What It Is, Test, Levels & Chart - Cleveland Clinic
An A1C test measures the average amount of sugar in your blood over the past few months. Healthcare providers use it to help diagnose prediabetes and Type 2 diabetes and to monitor how well your …
A1C Test for Diabetes and Prediabetes | Diabetes | CDC
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.
Understanding A1C Test | ADA - American Diabetes Association
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 sugar) over …
Hemoglobin A1c Test: Levels, Normal, High, Low, Chart, Schedule
Jul 18, 2025 · Hemoglobin A1c (HbA1c) test is used as a standard tool to determine the average blood sugar control levels over a period of three months in a person with diabetes. Learn normal ranges for …
Hemoglobin A1C (HbA1c) Test: MedlinePlus Medical Test
If you have diabetes or prediabetes, an A1C test can help monitor your condition and check how well you've been able to control your blood glucose levels. The A1C test isn't used to diagnose type 1 …
Hemoglobin A1c (HbA1c): What to know if you have diabetes or ...
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 have diabetes, and …
The A1C Test & Diabetes - NIDDK
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.
All About the Hemoglobin A1C Test - Healthline
Feb 25, 2025 · The A1C test measures the amount of hemoglobin in the blood with glucose attached. The test provides an average of your blood sugar readings for the past 3 months.