The art of anaesthesia . dealtwith in such a way that theperiod of excitement will bereduced to a minimum. Any-thing which tends to increaseblood-pressure at the induc-tion must be avoided, as forexample, the use of nitrousoxide without oxygen, or pushing the concentration / ]) /in/f ) before the patient is deeply V /yi Q enough under to accept it. ~*\ J j\ Q The control of the obstruc- I [ I \ { \\ tion occurring below the \ 1 * I 7 7 • .—.i , , • i. Fig. 15.—Throat tube in place. bronchi. Obstruction result-ing from pneumonia, asthma, etc., should be met byemploying oxygen with the ether adm
The art of anaesthesia . dealtwith in such a way that theperiod of excitement will bereduced to a minimum. Any-thing which tends to increaseblood-pressure at the induc-tion must be avoided, as forexample, the use of nitrousoxide without oxygen, or pushing the concentration / ]) /in/f ) before the patient is deeply V /yi Q enough under to accept it. ~*\ J j\ Q The control of the obstruc- I [ I \ { \\ tion occurring below the \ 1 * I 7 7 • .—.i , , • i. Fig. 15.—Throat tube in place. bronchi. Obstruction result-ing from pneumonia, asthma, etc., should be met byemploying oxygen with the ether administration. 3. Rigidity, which is caused by an incision made beforesatisfactory induction has taken place, will usually dis-appear on deepening of the anaesthesia. Unless occurringduring consciousness, or associated with respiratory ob-struction, it need cause no alarm, if ether is the Rigidity during the dilation of the sphincters, unlessinterfering with the surgeon, may well be permitted; for. 36 ANAESTHESIA this usually gives place to relaxation, when the excessivereflex has ceased. 5. Transient rigidity, which occurs during pelvic andgall-bladder work, must be temporarily abolished, if itproves inconvenient to the surgeon. When these manipu-lations have been completed, the j>atient may be permittedto come out somewhat. The important point to be bornein mind is that the patient is not necessarily light if he showssome disturbance in the face of these profound reflexes. 6. The position of the patient is such an important fac-tor in producing rigidity that it seems wise to illustratecomprehensively the positions most used. (Figs. 16-4.)). The Trendelenburg Posture (Figs. 16, 17, 18, 19,20).—The Trendelenburg posture is one in which the pa-tient lies on the back on a plane inclined about per cent.,the feet and legs elevated hanging over the edge of thetable, the weight of the body supported by shoulder set for Trendelenburg positio
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanesthe, bookyear1919
