Glycosylated Hemoglobin Test (Hemoglobin A1c) (En español:
Prueba de hemoglobina glucosilada (Hemoglobina A1c)) Say: gly-
koh-sih-lay-tid hee-muh-glow-bin test This blood test can tell
someone with diabetes if his or her diabetes is under control or
out of control. As a person's blood sugar gets higher, glucose
attaches to hemoglobin (a substance inside red blood cells that
carries oxygen to cells). When this happens, doctors say the
hemoglobin has become glycosylated. The glucose remains attached
to the hemoglobin for the life of the red blood cell, or about 2
to 3 months. This blood test measures the amount of glycosylated
hemoglobin in the blood. In other words, it's a way of figuring
out what the person's average blood glucose level was for the 2
to 3 months before the test. This can help determine how well a
person's diabetes is being controlled over time.