By detecting serum total iron, ferritin, transferrin, and transferrin saturation levels of all the patients during the first day in the hospital, we found that ferritin of sepsis patients was higher than that of the control group, while total iron, transferrin, and transferrin saturation were lower in the control group, however, whether or not sepsis patients with or without ARDS had an significant effect on sera iron metabolism indicators (Figures 1(a)–1(d)). Here, TF is linked to acute respiratory distress syndrome.