Key Words: Emergency Room Nurse, RN-ER, Emergency Room, Critical Care, Emergency Department, ACLS, EKG, Travel Nurse, Contract Nurse, Agency Nurse, Travel Contract, ER-RN, RN-ED, Emergency Room Nursing, ED Nurse, ER positions, RN-ER positions, ER Contracts, Travel Nurse. Emergency Room registered nurses (RN) provide care for patients from various types of illness or trauma requiring emergency attention and must be able to recognize and effectively treat life-threatening conditions.