THE EFFECT ON THE CIRCULATION IN MAN OF REBREATHING DIFFERENT CONCENTRATIONS OF CARBON DIOXIDE
- 1 August 1927
- journal article
- research article
- Published by American Physiological Society in American Journal of Physiology-Legacy Content
- Vol. 81 (3) , 650-660
- https://doi.org/10.1152/ajplegacy.1927.81.3.650
Abstract
Alveolar CO2 tension, systolic and diastolic blood pressure, heart rate, respiratory rate and amplitude were increased by rebreathing air of different CO2 concentrations from a Douglas bag. During recovery the systolic pressure fell gradually while the diastolic fell and then rose within the 1st minute after the end of the rebreathing period. O tension had no effect on the circulation until it fell to 7%. Reduction of alveolar CO2 tension by forced breathing caused a fall in systolic and diastolic blood pressure and pulse rate.This publication has 0 references indexed in Scilit: