. Röntgen rays and electro-therapeutics : with chapters on radium and phototherapy . so much water should be used as is required to cover thepatient comfortably. Xo salt should be added to the water, as the latterthereby becomes a better conductor. THE HYDEO-ELECTEIC BATH. 55 The duration of the bath should be ten minutes daily for the firstweek, but after that it should be given on alternate days. The choice ofcurrent will depend upon the condition present. Thus, in the early stagesof general neuritis, in acute neuralgia, and in acute sciatica, the directcurrent is indicated. In gout, rheumat
. Röntgen rays and electro-therapeutics : with chapters on radium and phototherapy . so much water should be used as is required to cover thepatient comfortably. Xo salt should be added to the water, as the latterthereby becomes a better conductor. THE HYDEO-ELECTEIC BATH. 55 The duration of the bath should be ten minutes daily for the firstweek, but after that it should be given on alternate days. The choice ofcurrent will depend upon the condition present. Thus, in the early stagesof general neuritis, in acute neuralgia, and in acute sciatica, the directcurrent is indicated. In gout, rheumatism, and arthritic conditions, thegalvanic current is preferable. The induction-coil bath and the sinusoidalcurrents are useful where general nutritive effects are local baths may be mentioned :The Arm Bath. The Monopolar and Dipolar Electric Douche arm bath is useful in paralysis of the muscles of the forearmsand hands, in rheumatism and gouty affections, in chilblains, Eaynaud sdisease, etc. The constant current, the current from the coil, or the. Fig. 35.—Diagrammatic view of the direction of current, as is illustrated in Schn6es four-celled battery. sinusoidal current may also be employed. The bath can be arranged inany non-conducting vessel; stone-ware troughs, easily procurable andinexpensive, are valuable for the purpose. In the monopolar bath only one electrode is immersed, the whole cur-rent passing from it to the patient. In the full-length bath, the patientgrasps a metal conductor, usually a bar or handle which is covered witha piece of flannel, and secured above the water level. The currentpasses from the conductor to the hands, thence to the body, and finally tothe water of the bath to reach the other conductor. 56 ELECTRO-THERAPEUTICS. The electric douche bath originated with Trautwein in 1884. ,^ of Aix les Bains, has described a method of electrical ap-plication by the means of douches. The current is led to and from
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