What is the A1C test?

The A1C test, also known as a glycohemoglobin or hemoglobin (Hb) A1C test, tells you how well you are managing your diabetes by measuring your average blood glucose (sugar) control for the few months prior to the blood test. Normal A1C is between 4% and 6% for a person who does not have diabetes. Your doctor can provide you with your ideal A1C target. A higher A1C increases the risk of complications, including heart attacks, strokes, neuropathy and more, so keeping your blood glucose and A1C in your target range helps lower your risk of complications.

LBL019054 Rev002

Related articles

What is fasting blood sugar (FBS) or glucose level?

A fasting blood sugar (FBS) level or fasting glucose in diabetes is the result of a blood sample taken after a patient fasts for at least 8 hours. Learn more.
  • Read more

What is a normal fasting blood glucose for a person with diabetes?

According to the American Diabetes Association (ADA) guidelines, patients with diabetes should strive to achieve fasting blood glucose levels below 131 mg/dL, and levels following meals below 180 mg/dL.

Why is it important to monitor blood glucose levels?

Checking and monitoring your blood glucose (sugar) levels is very important in order to keep your diabetes under control, especially in patients on insulin and patients with type 1 diabetes. Learn how.
Privacy PolicyTerms of Use

LBL-1001419 Rev008

LBL019054 Rev002

© Dexcom, Inc. All rights reserved.

US flag