A nurse is the triage officer in the emergency department when four clients arrive following a factory explosion. Which of the following clients should the nurse care for first?

Rationale: A. This client is unstable and requires immediate intervention. The sucking chest wound indicates a potentially life-threatening pneumothorax or open chest injury. Although the client is unconscious, they are still breathing, and the capillary refill is adequate, making them salvageable. According to disaster triage principles, clients who are critically ill but have a chance of survival if treated immediately should be prioritized. B. This client is stable, with a minor musculoskeletal injury that is not life-threatening. They can safely wait while more critical clients are treated. C. This client is mildly unstable, but their condition is less critical than the client with the sucking chest wound. They require monitoring and possibly supplemental oxygen, but immediate intervention is not as urgent. D. This client is considered expectant in mass casualty triage because they are not breathing and resuscitation efforts have already failed. Resources should be prioritized for clients with a higher chance of survival.