HbA1C (Glycosylated Hemoglobin)

Understanding Glycated Hemoglobin (HbA1c) and its Importance

What is glycated/glycosylated hemoglobin (HbA1c)?

Glycated or glycosylated hemoglobin (HbA1c) refers to a type of hemoglobin, the protein in red blood cells responsible for carrying oxygen throughout the body. When blood sugar levels (primarily glucose) are elevated, they can attach to hemoglobin molecules. This attachment process is spontaneous and occurs over time.

What is the HbA1c Lab Test?

The HbA1c test measures the percentage of hemoglobin in your red blood cells that is glycated. Since red blood cells live for roughly 2-3 months, the HbA1c test reflects your average blood sugar level over the past 2-3 months. This provides a more comprehensive picture of your blood sugar control compared to a single blood sugar measurement.

Why is the HbA1c Lab Test Done?

The HbA1c test serves several important purposes:

• Diagnosing diabetes: An elevated HbA1c level can indicate the presence of diabetes.
• Detecting prediabetes: Individuals with HbA1c levels in the “prediabetes” range are at increased risk of developing diabetes in the future.
• Monitoring diabetes treatment: For individuals already diagnosed with diabetes, the HbA1c test allows healthcare professionals to assess the effectiveness of their diabetes management plan and make adjustments if needed.

HOW DOES IT WORK

• Blood collected in a small test tube or vial
• Then the sample is sent to the laboratory for analysis of HbA1C levels in the blood.