Glycated Hemoglobin, also known as HbA1c, is a form of hemoglobin that is chemically linked to a sugar. The HbA1c test measures the percentage of hemoglobin in the blood that is glycated. This test is commonly used to determine the average blood sugar levels over the past two to three months. Interpreting the Glycated Hemoglobin results can help your doctor understand whether your blood sugar levels are within normal range, which is crucial in managing and preventing complications of diabetes.