Figure 2

Course of hematological parameters. This figure summarizes the results of relevant laboratory testing. Clearly, concomitant with the transfusion of a total of erythrocyte concentrates (each arrow indicates two concentrates) there was a significant increase in hemoglobin, reticulocytes and serum iron. In parallel, the level of erythropoietin declined rapidly, leucocytes normalized and, finally, even the excessively elevated platelet count returned to the normal range without any specific treatment.