Carbonic acid in medicine / by Achilles Rose, M.D. ; with the portraits of van Helmont, Priestley and Lavoisier.

  • Achilles Rose
Date:
1905
Catalogue details

Licence: Public Domain Mark

Credit: Carbonic acid in medicine / by Achilles Rose, M.D. ; with the portraits of van Helmont, Priestley and Lavoisier. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.

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    J^ comparison of the carbonic-acid tensions in the blood and in the tidal air showed in several instances a greater carbonic-acid pressure in the air of the lungs than in the blood, and the maximum of the difference was 17.2 mm. in favor of the air of the lungs. The alveolar air contains more carbonic acid than the air in the bronchi; therefore Bohr's experiments show that the carbonic acid in the alveoli has moved against the higher pressure. It has been as- sumed that the oxygen has a certain significance in regard to the elimination of carbonic acid in the lungs. Some attribute to oxygen the power to drive the carbonic acid out of its combina- tions in the blood. Experiments seem to show that the oxygen from the alveoli, entering into the blood, intensifies the tension of carbonic acid, and hence that the oxygen becomes an auxiliary factor for the elimination of carbonic acid. This assumption, however, has met with opposition, and the question is yet an open one. Concerning the elimination of carbonic-acid gas in the lungs, we are still without convin- [16]
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