The art of anaesthesia . from-foot bellows Fig. 57.—Simple form of Mercury Manometer. suffusion of the neck and face, which is brought on by thisswinging, is the index by which one may judge the effect ofthe centrifligation. Recapitulation.—Broadly speaking, we may say thatour chief respiratory difficulties in the stage of inductionare disturbed rhythm and shallowness. Stoppage of therespiration in this stage is due to obstructed respirationor acapnia. In maintenance, disturbances of rhythm and increasedrate. Stoppage of the respiration in this stage is due totoo much ether or acapnia. In reco
The art of anaesthesia . from-foot bellows Fig. 57.—Simple form of Mercury Manometer. suffusion of the neck and face, which is brought on by thisswinging, is the index by which one may judge the effect ofthe centrifligation. Recapitulation.—Broadly speaking, we may say thatour chief respiratory difficulties in the stage of inductionare disturbed rhythm and shallowness. Stoppage of therespiration in this stage is due to obstructed respirationor acapnia. In maintenance, disturbances of rhythm and increasedrate. Stoppage of the respiration in this stage is due totoo much ether or acapnia. In recovery, disturbances of rhythm and reduced rate. 96 ANAESTHESIA. Fig. 58.—Lewis pendulum awing. Stoppage of the respiration in this stage is due to obstruc-tion of the respiration or to the untoward effect of mor-phine. When the open drop method is employed, our chief THE SIGNS OF ANESTHESIA 97 difficulty will be decreased amplitude. This will retardinduction, diminish our control of maintenance and delaythe recovery. When the closed method is used, we will be annoyed byexcessive respiratory efforts and, unless provision is madefor constant small dosage as in the case of the closed dropmethod, we will find a frequent and embarrassing changein rhythm. It will also be found that the closed methodwill obscure respiratory sounds, which would be distinctlyaudible with an open mask. In order to better appreciate the significance of abnor-malities in respiration, it has been suggested that the anaes-thetist occasionally try upon himself the rate of rhythmand amplitude which the patient exhibits. II. THE COLOR SIGNS. In company with the respiration, the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanesthe, bookyear1919
