The sloping alveolar plateau of tracer gases washed out from mixed venous blood in man

We have investigated the slope of the alveolar plateau for inert tracer gases that were washed out from mixed venous blood. Two pairs of tracer gases were used (He, SFe) and (C2H2, Freon 22). The gases of each pair share almost the same blood-gas partition coefïicient but they have different diffusive properties in the gas phase. The experiments...