An A1c test is key if you have diabetes or if your doctor thinks you might have a chance of getting it. It's a common blood test that gives information about your blood sugar. It’s the main way to ...

Hemoglobin is a protein in red blood cells. It carries oxygen around your body, delivering it to tissues. Hemoglobin also carries carbon dioxide to the lungs so you can breathe it out. Iron is a part ...

High A1C levels are a risk factor for diabetes and other complications. However, ideal and dangerous A1C levels can vary slightly between each individual. Lifestyle changes can help manage A1C levels.

The A1C test measures a person’s average blood glucose or blood sugar levels over the past 3 months. An A1C reading of over 5.6% may be a cause for concern, but this will depend on various factors.

Home A1C testing can be as accurate as in-person laboratory testing, but it’s important to follow the test instructions exactly to get accurate results. Your A1C is a snapshot of your average blood ...

The A1C test measures your average blood sugar levels over two to three months. If you are 35 or older, you should get screened for diabetes every three years. The A1C test can also be used to ...