Measurement of metabolic gas exchange during anaesthesia. A method using mass spectrometry.
A method is described for measuring metabolic gas exchange during general anaesthesia using a respiratory mass spectrometer, a mixing box and two inert tracer gases. Measurement of inspired and expired minute volume is possible to within 2%; oxygen consumption, carbon dioxide output and respiratory quotient can be measured to within 10%.
D000368:Aged; D000768:Anesthesia, General; D002245:Carbon Dioxide / Q000378:metabolism*; D002315:Cardiopulmonary Bypass; D002675:Child, Preschool; D006801:Humans; D008176:Lung Volume Measurements / Q000379:methods; D013058:Mass Spectrometry; D008875:Middle Aged; D010101:Oxygen Consumption
D002245:Carbon Dioxide