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The influence of CO2 production and physiological deadspace on end-tidal CO2 during controlled ventilation: a study
M A Stockwell1, W Bruce, N Soni
1Magill Department of Anaesthetics, Westminster Hospital, London, U.K.
Anaesthesia and Intensive Care
|November 1, 1989
Abstract:
A mechanical lung model was used to investigate the effect of varying carbon dioxide production and deadspace on the end-tidal carbon dioxide levels achieved during mechanical ventilation when using the Bain, Humphrey ADE, and circle systems. Both factors had significant influence on end-tidal carbon dioxide concentration and could result in values in excess of those considered acceptable in clinical practice. The implications of the results are discussed.