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THE RESPIRATORY GAS PERCENTAGES DURING NITROUS OXID ANESTHESIA IN DOGS

THE RESPIRATORY GAS PERCENTAGES DURING NITROUS OXID ANESTHESIA IN DOGS Abstract The practical induction of nitrous oxid-oxygen anesthesia by the methods now universally practiced still leaves undetermined the question of adequacy of the supply of oxygen to the patient. The question as to availability of oxygen is rendered the more important by recent work which tends to establish the minimum requirements of oxygen in respiratory airs for efficiency in the normal individual. The experimental data of the United States Army School of Aviation Medicine prove that a normal man cannot long retain consciousness unless he breathes air of at least 6 per cent. oxygen.1 In the tests, it is assumed that the individual is exerting a minimum of muscular activity. He is not far from the normal basal metabolic level. By the least additional work, as by any sudden muscular acts, he quickly consumes the oxygen below the level necessary to retain consciousness. For less resistant individuals, either normal or pathologic, References 1. Schneider, E. C., and Truesdell, Dorothy: Am. J. Physiol. 55:223 ( (March) ) 1921 2. Greene, C. W., and Gilbert, N. C.: Am. J. Physiol. 60:155 ( (March) ) 1922. 3. Kemp, G. T.: Nitrous Oxid Anesthesia , Brit. M. J. 2:1480, 1897. 4. Cullen, G. E.; Austin, J. H.; Kornblum, K., and Robinson, H. W.: The Initial Acidosis in Anesthesia , J. Biol. Chem. 56:679 ( (June) ) 1923. 5. Leake, C. D., and Hertzman, A. B.: Blood Reaction in Ethylene and Nitrous Oxid Anesthesia , J. A. M. A. 82:1162 ( (April 12) ) 1924.Crossref 6. Kunerth, William: The Solubility of Carbon Dioxid and Nitrous Oxid in Certain Solvents , Physical Review 19:512, 1922.Crossref http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Internal Medicine American Medical Association

THE RESPIRATORY GAS PERCENTAGES DURING NITROUS OXID ANESTHESIA IN DOGS

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Publisher
American Medical Association
Copyright
Copyright © 1925 American Medical Association. All Rights Reserved.
ISSN
0730-188X
DOI
10.1001/archinte.1925.00120090084007
Publisher site
See Article on Publisher Site

Abstract

Abstract The practical induction of nitrous oxid-oxygen anesthesia by the methods now universally practiced still leaves undetermined the question of adequacy of the supply of oxygen to the patient. The question as to availability of oxygen is rendered the more important by recent work which tends to establish the minimum requirements of oxygen in respiratory airs for efficiency in the normal individual. The experimental data of the United States Army School of Aviation Medicine prove that a normal man cannot long retain consciousness unless he breathes air of at least 6 per cent. oxygen.1 In the tests, it is assumed that the individual is exerting a minimum of muscular activity. He is not far from the normal basal metabolic level. By the least additional work, as by any sudden muscular acts, he quickly consumes the oxygen below the level necessary to retain consciousness. For less resistant individuals, either normal or pathologic, References 1. Schneider, E. C., and Truesdell, Dorothy: Am. J. Physiol. 55:223 ( (March) ) 1921 2. Greene, C. W., and Gilbert, N. C.: Am. J. Physiol. 60:155 ( (March) ) 1922. 3. Kemp, G. T.: Nitrous Oxid Anesthesia , Brit. M. J. 2:1480, 1897. 4. Cullen, G. E.; Austin, J. H.; Kornblum, K., and Robinson, H. W.: The Initial Acidosis in Anesthesia , J. Biol. Chem. 56:679 ( (June) ) 1923. 5. Leake, C. D., and Hertzman, A. B.: Blood Reaction in Ethylene and Nitrous Oxid Anesthesia , J. A. M. A. 82:1162 ( (April 12) ) 1924.Crossref 6. Kunerth, William: The Solubility of Carbon Dioxid and Nitrous Oxid in Certain Solvents , Physical Review 19:512, 1922.Crossref

Journal

Archives of Internal MedicineAmerican Medical Association

Published: Mar 1, 1925

References