Electro-physiology and electro-therapeutics : showing the best methods for the medical uses of electricity / By Alfred C. Garratt.
295/740

280 (canvas 296)
The image contains the following text:
CHAPTER V.
METHODS FOR THE MEDICAL EMPLOYMENT OP
ELECTRICITY.
Alcre jlammam vitalem.
Precautions.
First of all, it is necessary to bear in mind that there is the
greatest conceivable difference in individuals of the same age
and sex as to their susceptibility to the effects of all electric cur-
rents ; and these form two classes of patients. The first are
those where there is exalted sensibility, and where only the most
gentle procedure, and that with the most feeble currents, is at
all admissible. In this class we may also include those with
exquisite susceptibility to the in-working- and also reflex action
of the current, and that without their suffering, or even scarcely
noticing it, during the seance. See pp. 475-479 & Notes in App.
The second class of persons are those where there is neither
anaesthesia or paralysis, and yet there is a very marked indiffer-
ence to the attempts of the currents. Some do not feel even the
stronger currents; and others do not receive, or rather give no
evidence of receiving, any impression from their in-working. For
such reasons, great precaution is necessary in the employment of
electric currents, particularly in giving the first seance for a new
patient, until we study the temperament; even then we cannot