Hemoglobin A, where A stands for adults, is the widely prevalent hemoglobin tetramer that contains two alpha and two beta subunits. The subunits have a heme group for the binding oxygen molecules, which aids in oxygen transportation from the tissues to the lungs. Deficiency of hemoglobin A results in alpha-thalassemia, beta-thalassemia, and sickle cell anemia.
Hi, Welcome to icliniq.com. Based on your query, my opinion is as follows: The beta-thalassemia screening test appears to be normal. HbA2 levels (hemoglobin A2) are normally between 2 to 3.
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