What percentage does A1c make up of the glycated hemoglobin?

Glycated hemoglobin (A1c) specifically refers to a form of hemoglobin that is chemically linked to a sugar, which reflects average blood glucose levels over the past two to three months. A1c is primarily made up of hemoglobin A, comprising about 80-90% of hemoglobin in adults.

While the percentage of A1c being 80% aligns with your selected choice, it is essential to clarify that a more accurate characterization often places it closer to the 90% mark when referring to total glycated hemoglobin in clinical contexts. This emphasis on the upper range associated with A1c underscores its critical role as a biomarker in assessing long-term glucose control in patients, particularly those managing diabetes.

Understanding the relationship between A1c and overall glycated hemoglobin is crucial for practitioners in interpreting results and managing treatment plans appropriately.