full iron panel : Hemoglobin : the iron-containing protein in the blood that carries iron. Joshua Dunaief, professor of ophthalmology at the University of Pennsylvania School of Medicine. Transferrin-iron saturation percentage (TS) : a measure of iron carried by the protein transferrin in the serum; represented by fasting serum iron divided by total iron binding capacity (tibc multiplied by 100. But how can the bodys storage sites for iron be full without iron overflowing into other organs? Serum ferritin : indicates the amount of iron stored in the body, via the protein ferritin.