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Studies of A-v DCO2 in the total lung rebreathing method Shoko Nioka 1 1Department of Anesthesiology, Kyoto Prefectural University of Medicine pp.631-637
Published Date 1981/6/15
DOI https://doi.org/10.11477/mf.1404203790
  • Abstract
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Many investigaters suggested that the positive A-vDCO2 existed in a total lung rebreathing method. They used various initial bag PCO2, value, and that is considered to influence the value of A-vDCO2. The auther investigated the relation between the initial PCO2 value in the bag and A-vDCO2 in order to find out the CO2 gradient between alveolus and lung capillary, and to seach the possibility of application of rebreath-ing PCO2 instead of PvCO2.

When the initial PCO2 value in the bag was between PvCO2 and PvCO2+9mmHg, the mean A-vDCO2 was 2.48mmHg and after Haldane cor-rection it was -0.17mmHg. When the initial PCO2 value in the bag was between PvCO2+9mmHg and PvCO2+15mmHg, the mean A-vDCO2 was 5.24mmHg and after Haldane correction, it was 2.14mmHg. When the initial PCO2 value in the bag was less than PvCO2 or more than PvCO2+15 mmHg, measured PACO2 was not equi-librated before 20 seconds.


Copyright © 1981, Igaku-Shoin Ltd. All rights reserved.

基本情報

電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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