The laboratory diagnosis of iron deficiency anemia is obtained based on data provided by the hemogram, where microcytic-hypochromic anemia can be observed, and based on biochemical measurements such as levels of serum iron and serum ferritin, and by calculating the transferrin saturation. In certain clinical states, these results are not suffcient or explanatory, such as in the onset of iron deficiency, when changes in the blood count are not yet detected; or when faced with an associated inflammatory/infectious condition, in which biochemical evidence may suffer interference from elevated inflammatory proteins.