Word: oxygenate
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...impaired physical conditions observed in this instance are in reality due to the lack of oxygen rather than to the anesthetic. If the highly specialized cells of the brain are deprived of their essential oxygen too long, irreparable damage may result. Such after-effects are not confined to Nitrous Oxide-Oxygen, as they may and do follow the use of other anesthetic agents, for example, ether as mentioned in the report. Destruction of the brain cells may occur as a result of asphyxia without anesthesia...
...unfair to single out Nitrous Oxide in this manner, when the same condition may result due to the lack of oxygen when any other general anesthetic is being administered. We feel that it is especially unfortunate that your reference gives the impression that damage to the brain as described is due to the anesthetic agent, rather than the attendant lack of oxygen...
...taken with proper precautions, itching rashes, jaundice, agranulocytosis (lack of white blood corpuscles, which the system needs to fight off infection) and cyanosis. Cyanosis is due to the sulfur of the sulfanilamide combining with the hemoglobin of red blood corpuscles. This prevents the red corpuscles from carrying oxygen through the system and as the result, the body turns blue. Such catastrophes may happen if a patient who takes sulfanilamide takes other sulfur preparations, such as Epsom salts (magnesium sulfate...
There is no air supply coming down through a hose, the diver carries tanks of oxygen and helium on his back, inside the suit, adjusts his own atmosphere. Thus there is no airline to foul or puncture, and the diver can even disconnect his hoist line for greater freedom, keeping track of a "distance line" on the bottom so that he can find his way back to the surface connecting lines. If he happens to lose it, he can, according to Diver Nohl, rise of his own accord by valving gas into the suit...
...pollution discharged in rivers by the drainage systems of cities and industrial wastes is destroyed largely by oxidation, and the oxygen requirements of such rivers is therefore a matter of great importance...