Anæsthesia and anæsthetics general and local . air and allow to-and-fro breathing from the bag ETHER III for a few seconds in order to partly fill the bag with air, and tosee that the bag expands and contracts properly with respira-tion, keeping the face-piece closely applied during expiration;gradually turn the indicator towards ether every two or threerespirations. As anaesthesia becomes effected ether may be ad-mitted rather more freely; coughing, swallowing, and holdingthe breath indicate less ether and more air; excitement indicatesmore ether and less air. If there be stertor the face-pie
Anæsthesia and anæsthetics general and local . air and allow to-and-fro breathing from the bag ETHER III for a few seconds in order to partly fill the bag with air, and tosee that the bag expands and contracts properly with respira-tion, keeping the face-piece closely applied during expiration;gradually turn the indicator towards ether every two or threerespirations. As anaesthesia becomes effected ether may be ad-mitted rather more freely; coughing, swallowing, and holdingthe breath indicate less ether and more air; excitement indicatesmore ether and less air. If there be stertor the face-piece shouldbe raised and a breath or two of air allowed. As the adminis-tration is prolonged more air may be admitted without affectingthe anaesthesia; slight cyanosis is present as a rule during thebeginning of the administration. In the later stage cyanosisindicates more air; marked stertor, deep cyanosis, difficultbreathing, and forced expiration call for more air at once. Thesigns of anaesthesia are regular, snoring breathing, lost corneal. Indicator at 3 Indicator at f or Full Fig. 29.—Diagram of Air Currents in Clovers Inhaler.—After Hewitt. Fig. 29. Diagram of air current passing over ether in Clovers PortableInhaler when indicator points to O, i, 2, 3, and F. Four linesrepresents the full current. In preparing to use Clovers inhaler secure a properly fitting face-piece,turn the indicator to 1 or 2; pour in one and one-half ounces of ether;replace the plug; turn back the indicator to O; blow once through theapparatus to remove odor of ether, and attach the bag. 112 ETHER
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