Emergency nursing focuses on caring for patients requiring prompt medical attention to avoid disability or death. Key principles include establishing airways, controlling hemorrhage, restoring circulation, and rapidly assessing patients. Emergency nurses must accept all patients, rapidly assess them, prioritize care, and intervene or refer as needed. They work under ethical principles of respecting autonomy, beneficence, honesty, and justice. The role involves accepting undifferentiated problems and coordinating care. Emergency events discussed include trauma, shock, snake bites, burns, heat stroke, and drowning.