[Propagation of error, sensitivity and specificity of the CO gas transfer in various breath holding and steady state methods (author's transl)].

For determining DL/VA or the Krogh factor use of the breath-holding CO method only is recommended because it is relatively free from errors, independent of distribution and is relatively specific regarding diffusion. The steady state methods tend to be unspecific despite calculation of DL/VA and to be rather sensitive to uneven distribution of ventilation.