What best describes the responsibility of a nurse after witnessing a mass casualty incident?

The responsibility of a nurse after witnessing a mass casualty incident mainly revolves around immediate patient care, which includes triaging patients. In a mass casualty scenario, healthcare providers must quickly assess the severity of injuries and prioritize treatment based on the urgency of medical need. This enables the most critical patients to receive care first and helps manage resources effectively during an overwhelming situation.

Assisting in triaging is crucial because it directly influences patient outcomes in emergencies, ensuring that those who are most in need receive timely interventions. This role is essential, as it not only supports the medical team but also helps to maximize the effectiveness of the response to the incident. Therefore, actively participating in triage after such an event aligns with the nurse's responsibilities to provide care and support to patients in distress.