Electrical injury, 697 alternating current (AC), 697 clinical recognition, 697 –698 direct current (DC), 697 indications for discharge and admission, 699 lightning vs high-voltage, 696 t “locking-on,” 697 management and diagnostic studies, 698 –699 , 699 t resistance, 697 severity, 696 treatment, goals of, 696 Electrolyte abnormalities, 80 Electrolyte disturbances, 502 Electronic health record, –9 , 11 t Electronic medical record (EMR) clinical decision support, Emergency department care, high-quality, –10 guidelines, t–3 t principles of high-reliability organizations, , t Emergency Medical Services (EMS) air transport and safety, 13e –15e communication, 8e direct medical control, 9e epidemiology and, 2e equipment for ambulances, C134 e134.4t communication, 8e fellowship training programs, 5e governance of, 2e indirect medical control, 9e –10e interfacility transport, 1e –6e IOM reports, 19e –20e lights and siren use, 16e medical control, 15e medical director responsibilities, C134 e134.6t medical–legal issues, 15e –16e medical oversight, 3e –5e medical records, 14e