The Journal of laboratory and clinical medicine . ,that if one breathes a mixture of nitrous oxide and oxygen for a certain time,for example five minutes, and then passes under the influence of the gas to agiven degree, he can then considerably increase the quantity of oxygen in thebag without lessening the influence of the nitrous oxide so far as the subject of i!iiiiiffliniiiniuiiTi!iniiniMii»!iiiiP. ^um-\ M Fig. 6.—This tracing was made in a class experiment by Messrs. Mitchell, Day, Lueking andMcKee. It shows the results produced on the respiration and blood pressure by injecting (twice) a
The Journal of laboratory and clinical medicine . ,that if one breathes a mixture of nitrous oxide and oxygen for a certain time,for example five minutes, and then passes under the influence of the gas to agiven degree, he can then considerably increase the quantity of oxygen in thebag without lessening the influence of the nitrous oxide so far as the subject of i!iiiiiffliniiiniuiiTi!iniiniMii»!iiiiP. ^um-\ M Fig. 6.—This tracing was made in a class experiment by Messrs. Mitchell, Day, Lueking andMcKee. It shows the results produced on the respiration and blood pressure by injecting (twice) asmall amount of carbon dioxide into the breathing bag while the dog was anesthetized by nitrous each case the CO2 was quickly emptied out of the bag after the animal began to show markedsymptoms. the experiment himself can determine. The reason for this appears to be asfollows: On breathing the N^O at first the whole body of the subject after atime becomes saturated with the gas at the given partial pressure. (As the firstportion of gas is absorbed, one can see the bag shrink fairly rapidly with ani-mals.) More XoO must be run into the bag to replace that absorbed. But afterthe anesthesia or analgesia has reached a given degree, then if no more gas, butonly oxygen, is given, the elfects of the X^O on the subject should remain fairlyconstant. It will be noted that the gas is excreted
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Keywords: ., bookcentury1900, bookdecade1910, booksubject, booksubjectmedicine
