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What is the glycated hemoglobin test (HbA1c)?

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The glycated hemoglobin test (a.k.a. HbA1c) is an important blood test to determine how well you are managing your diabetes. Hemoglobin is a substance in red blood cells that carries oxygen to tissues. It can also attach to sugar in the blood, forming a substance called glycated hemoglobin, or hemoglobin A1c. The test provides an average blood sugar measurement over a 6- to 12-week period and is used in conjunction with home glucose monitoring to make treatment adjustments. The ideal range for people with diabetes is generally less than 7%. This test can also be used to diagnose diabetes when the HbA1c level is equal to or greater than 6.5%.

From: Glossary of Diabetes Terms WebMD Medical Reference

SOURCES: American Diabetes Association. National Institute of Diabetes and Digestive and Kidney Diseases. xylitol.org. News release, FDA.

Reviewed by Michael Dansinger on February 17, 2019

SOURCES: American Diabetes Association. National Institute of Diabetes and Digestive and Kidney Diseases. xylitol.org. News release, FDA.

Reviewed by Michael Dansinger on February 17, 2019

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