The art of anaesthesia . yringe with the mixture is thendetached to see that the needle is still in the canal. Ifspinal fluid flows out the syringe may be reattached andthe injection made under moderate pressure. The greaterthe pressure the higher will be the anaesthesia. The patientshould then be placed in the semi-sitting position. Theprocedure is completed by sealing the wound by adhesiveor collodion. Shortly after the injection the following symptomsmay be expected: Tingling of the feet, a sense of generalmalaise, nausea and vomiting. These symptoms may bemarked or of no consequence. Follo
The art of anaesthesia . yringe with the mixture is thendetached to see that the needle is still in the canal. Ifspinal fluid flows out the syringe may be reattached andthe injection made under moderate pressure. The greaterthe pressure the higher will be the anaesthesia. The patientshould then be placed in the semi-sitting position. Theprocedure is completed by sealing the wound by adhesiveor collodion. Shortly after the injection the following symptomsmay be expected: Tingling of the feet, a sense of generalmalaise, nausea and vomiting. These symptoms may bemarked or of no consequence. Following the tingling inthe feet, analgesia and loss of motor power will make theirappearance beginning below and extending upward. Pal-lor and perspiration are occasionally seen. At the firstappearance of any symptom, however slight, the patientshould receive immediately a hypodermic injection ofstrychnine gr. 1/30. An overdose may be treated by inhalations of ethercarried to the period of excitement. THE ADMINISTRATION 269. Fig. 117.—-The point of skin puncture is anesthetized by freezing; this is not necessary if afine needle is used. (Steel, International Clinics.) 270 ANAESTHESIA
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