The document defines disasters and outlines the roles of nurses in disaster management. It discusses:
1) Definitions of disasters from WHO and the American Red Cross as unanticipated events that cause human suffering beyond local capabilities.
2) Disaster nursing is adapting nursing skills to meet physical, emotional and nursing needs after disasters.
3) The phases of disaster management include preparedness, impact, response, rehabilitation and mitigation to reduce future impacts.
4) Nurses play important roles in all phases through community assessment, triage, ongoing surveillance, health teaching and psychological support.