Explain what to expect during the test. If your child is anxious about it, work together on ways to stay calm. Hemoglobin (HEE-muh-glow-bin) is the protein inside red blood cells that carries oxygen.

Hemoglobin A1c is used clinically as a biomarker for the diagnosis and management of diabetes mellitus. Various methods are available to measure HbA1c and each has advantages and limitations. The ...