Fig. 1From: How I wean patients from veno-venous extra-corporeal membrane oxygenationECMO weaning test. FdO2 = fraction on oxygen in the sweep gas; EDCT = ECMO de-oxy challenge test; ECCT = ECMO CO2 challenge test; OCT = oxygen challenge test (FiO2 100% on the ventilator); VCO2NL = VCO2 natural lung; VCO2ML = VCO2 membrane lung; SGF = sweep gas flowBack to article page