An A1C test, also known as a hemoglobin A1C or HbA1C test, is a simple blood test that estimates your average blood sugar levels over the last three months. People who don’t have diabetes may be given ...

The HbA1c test is used to measure the amount of glycosylated hemoglobin in the blood. It is recommended that people diagnosed with diabetes have an HbA1c reading every 3 to 6 months, and more ...

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 ...