[Computer technic for measurement of the pulmonary transfer of carbon monoxide]

An informatic method is described for accurate on-line computation and recording of pulmonary transfer for carbon monoxide (steady state CO uptake with alveolar CO measured from end-tidal determination of gas) using fast response transducers for ventilatory flow and carbon monoxide tension. Special procedures for time alignement of flow and tension signal, and for determination of PACO by microcomputer, are described. The accuracy of the method was studied under informatic and non informatic methods PECO, PACO and TLCO values are in good agreement with those obtained by the conventional non-informatic method.