What is a hemoglobin A1c lab test?
Hemoglobin A1c Lab Tests, also called A1c, HbA1c, or glycated hemoglobin is a test that measures the average amount of blood sugar (also called glucose) attached to your hemoglobin over the past three months. Hemoglobin is a protein in your red blood cells that carries oxygen throughout your body. Doctors generally recommend getting an HbA1c every three months if you are managing a chronic condition like diabetes. That's because three months is the average lifespan of a red blood cell.
An HbA1c test is generally used by doctors to check for diabetes or prediabetes in adults. If you have already been diagnosed with diabetes, an HbA1c can help you and your doctor evaluate and manage your condition.