Figure 1From: Methemoglobinemia in critically ill patients during extended hemodialysis and simultaneous disinfection of the hospital water supplyMethemoglobin fraction during a seven-day period in a patient undergoing five sessions of extended hemodiafiltration during that time (marked as horizontal bar). On the fifth day, (i.e., during the third session of dialysis), disinfection of the hospital water supply was performed, accompanied by an increase in the methemoglobin fraction.Back to article page