But scattered throughout that DNA are 20, 000 genes, the recipe books that tell the body how to make proteins suchas insulin, muscle, hemoglobin, brain tissue, bone, clotting factor--virtually everything in our bodies.
There are several common hemoglobin disorders suchas sickle cell trait and the thalassemias that are generally asymptomatic and generally of no consequence to the patient having it, but patients can have erroneous HgA1C measurements.