What Is the HbA1c Test and Why Do Hemoglobin Variants Cause Problems?
What Is the HbA1c Test and Why Do Hemoglobin Variants Cause Problems? The HbA1c (glycated hemoglobin) test is one of the most widely used tools for diagnosing diabetes and evaluating long-term glycemic control. As blood glucose remains elevated, glucose molecules attach to hemoglobin inside red blood cells—a process known as glycation. The most clinically relevant…