Abstract
The water vapour pressure in the expired air of normal subjects during rest and exercise was measured by a mass spectrometer. The mean vapour pressure was found to be 37.9 mm Hg during tidal breathing and 39.7 mm Hg after a vital capacity manoeuvre. The pressure was reduced to 36.1 mm Hg during exercise. This decrease was not significantly different from breathing at rest. When offering warm wet air with a water vapour pressure of about 75 mm Hg, the end-tidal pressure was found to be 47 mm Hg. The evidence for complete saturation of expired gas is discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Respiration; international review of thoracic diseases
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
