Clinical electrocardiography . Stav,dardizj>,<j , Fig. —Essential wiring of the electrocardiograph: M, Electromagnets;L, lantern; C, camera; T, time marker; LL, left leg; LA, left arm; RA, rightarm; F, fiber; MS, microscope. strip of rubber sheet 9 cm. wide and 30 cm. long. The stripsare fastened together near one end by a brass screw, which alsocarries the binding-post. The electrolyte is a 20 per cent, saline solution used as warmas can comfortably be tolerated by the patient. The current represents not only the cardiac action currentsbut also the difference of potenti
Clinical electrocardiography . Stav,dardizj>,<j , Fig. —Essential wiring of the electrocardiograph: M, Electromagnets;L, lantern; C, camera; T, time marker; LL, left leg; LA, left arm; RA, rightarm; F, fiber; MS, microscope. strip of rubber sheet 9 cm. wide and 30 cm. long. The stripsare fastened together near one end by a brass screw, which alsocarries the binding-post. The electrolyte is a 20 per cent, saline solution used as warmas can comfortably be tolerated by the patient. The current represents not only the cardiac action currentsbut also the difference of potential between the parts of the bodyto which the electrodes are applied; application of the electrodes ELECTROCARDIOGRAPHY 29 is dependent on local conditions of the skin and tissues. On thisaccount it is important to have the skin of the contact areas thor-. Fig. —Shallow pan electrodes used in the Mayo Clinic. oughly scrubbed with soap and water, and to use acetone, if neces-sary, to remove the skin oils. To neutralize this adventitious
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