疫痢赤痢に於ける血液酸素量並びに炭酸ガス量の研究 : 第1篇 健康小児の血液酸素量並びに炭酸ガス量に関する研究
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In the present studies on the amounts of oxygen and carbon dioxide in the blood of normal children, the author measured by manometer -developed by Van Slyke and Neil the amounts of carbon dioxide as well as the capacity of hemoglobin to combine with oxygen, oxygen contents of hemoglobin and degrees of saturation of hemoglobin with oxygen. The blood samples used in the experiments have been obtained from peripheral arteries and veins of normal Japanese children during rest period. The results of the experiments are summarized as follows: 1) The capacity of hemoglobin to combine with oxygen varied from 18.80 vol. % to 13.36 vol. %, with the average value of 16.68 vol. %. While showing a tendency to become larger as the age advanced, it remained on lower levels as compared with that measured in European and American counterparts. No differences according to sex were observed. 2) Oxygen contents of hemoglobin in blood samples obtained from arteries varied from 17.73 vol. % to 13.48 vol. %, with the average value of 15.77 vol. %. The observations made on this subject were more or less similar to those made on the capacity of hemoglobin to combine with oxygen. 3) Degrees of saturation of hemoglobin with oxygen in blood samples obtained from arteries varied from97.0% to 88.8%, with the average value of 93.5%, which were slightly smaller than those hitherto reported in adults. It is presumed that crying caused by shock given when blood samples are obtained is responsible for this fact. 4) Oxygen contents of hemoglobin and degrees of saturation of hemoglobin with oxygen in blood samples obtained from veins varied from 14.33 vol. % to 5.87 vol. %, and from 84.3% to 38.6%, respectively, with the respective average values of 10.76 vol. % and 64.5%., representing wide differences in values. In the former, only 60.7% of the children under investigation came within the range of 15-10 vol. % which has hitherto been assumed to be normal, while, in the latter, only 73.7% were within the normal range of 85-60%. Babies as well as the children in the age group of 1-4 have shown larger values than children of other age groups. 5) The differences between the blood samples obtained from arteries and veins in oxygen contents of hemoglobin and degrees of saturation of hemoglobin with oxygen proved to be comparatively wide, varying from 9.78 vol. % to 1.97 vol. % (the average value being 4.95 vol. %) in the former and from 56.3% to 10.7% (the average value being 29.3%) in the latter. 6) The amounts of carbon dioxide contained in blood samples obtained from arteries and veins varied from 51.15 vol. % to 42.47 vol. % (the average value being 47.88 vol. %) and from 60.45 vol. % to 44.23 vol. % (the average value being 51.83 vol. %), respectively. The values showed a tendency to become larger as the age advanced. The differences between the blood samples obtained from arteries and veins in the amounts of carbon dioxide varied from 8:85 vol. % to 2.04 vol. % with the average value of 4.25 vol. %.
- 1954-09-28
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関連論文
- 疫痢赤痢に於ける血液酸素量並びに炭酸ガス量の研究 : 第1篇 健康小児の血液酸素量並びに炭酸ガス量に関する研究
- 疫痢,赤痢に於ける血液酸素量並びに炭酸ガス量の研究 : 第2篇 疫痢,赤痢患児の血液酸素量並びに炭酸ガス量に関する研究