British Journal of Anaesthesia, 1981, Vol. 53, No. 1 103-109
© 1981 The Board of Management and Trustees of the British Journal of Anaesthesia
research-article |
RESPIRATORY MASS SPECTROMETRY DURING GENERAL ANAESTHESIA
Anaesthetic Department, Brompton Hospital Fulham Road, London SW3 6HP
*Present address: Anaesthetic Department, Royal Free Hospital London NW3
Correspondence to M.A.B.
The performance of a respiratory mass spectrometer, modified commercially for use during general anaesthesia, has been evaluated. Stability and linearity proved satisfactory for monitoring respiratory gases and accurate measurement was possible when the inspired concentration of all gases was less than 80%. The system has been installed centrally in a three-room operating theatre suite and the selection of long sampling probes which permit an adequate response time for all gases is discussed.