[Automatic continuous calculation in real time of alveolar ventilation (author's transl)]

The authors present the steps and rules to be respected for the building-up of a program of automatic calculation in real time of alveolar ventilation, with a programming calculator from the numerization of signals sent by a pneumotachograph and a rapid analyzer of carbon dioxide. Such a program would follow the rapid variations of alveolar ventilation in periods of transition or ventilatory instability. It could easily be adapted to the continuous calculation of carbon monoxide transfer by the method in a stable condition.