an electrician is electrocuted by a downed power line after a thunderstorm. he apparently made contact with the wire at the level of the right mid thigh. in the emergency department, his vital signs are normal and no dysrhythmia is noted on ecg. on examination, there is an exit wound on the bottom of the right foot. his urine is positive for blood by dip stick but no rbcs are seen microscopically. initial management should include: immediate an