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What is A1c (also called hemoglobin a1c, hga1c, glycated hemoglobin)?

6 doctors weighed in
Dr. Susan Wingo
Internal Medicine - Endocrinology
6 doctors agree

In brief: Diabetes test.

Hga1c is one of the main tests to indicate whether a person's diabetes is under good control or not.
Hemoglobin is contained in red blood cells, which stay in the bloodstream for 3-4 months. Glucose can be chemically attached to hemoglobin based upon the concentration of glucose in the blood. So, hga1c measures how much glucose has been in the blood for the last three months.

In brief: Diabetes test.

Hga1c is one of the main tests to indicate whether a person's diabetes is under good control or not.
Hemoglobin is contained in red blood cells, which stay in the bloodstream for 3-4 months. Glucose can be chemically attached to hemoglobin based upon the concentration of glucose in the blood. So, hga1c measures how much glucose has been in the blood for the last three months.
Dr. Susan Wingo
Dr. Susan Wingo
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