What does A1C stand for?

A1C stands for glycated hemoglobin, which is a form of hemoglobin that is chemically linked with glucose. The A1C test measures the average blood sugar levels over the past two to three months, providing valuable insights into how well diabetes is being managed. This test is crucial for monitoring long-term glucose control and is a standard metric in diabetes care.

The term "glycated" indicates that glucose has attached to hemoglobin in the red blood cells. Since red blood cells have a lifespan of about 120 days, the A1C level reflects the cumulative blood sugar levels over that period, making it a vital tool for assessing the risk of diabetes-related complications. This understanding is essential for healthcare providers and patients in managing diabetes effectively.