label: Reduced hemoglobin A
label_lc: reduced hemoglobin a
description: "Hemoglobin A (HbA) contains two globin alpha chains and two globin beta chains. HbA is normally the main adult hemoglobin, representing about 96-98 percent of all hemoglobin. This term represents a decreased in the proportion of HbA below this limit, and can be seen in various forms of thalassemia."