What should be established and performed appropriately during a multi-patient incident?

During a multi-patient incident, it is essential to establish and perform triage, extrication, treatment, and transportation correctly. This process ensures that each patient is assessed and prioritized based on the severity of their injuries, allowing medical responders to allocate resources effectively. Triage enables responders to identify those who need immediate attention versus those who can wait for treatment.

Extrication refers to the process of safely removing patients from dangerous situations, which is critical during incidents like accidents or disasters. After extrication, appropriate treatment is provided to address each patient's medical needs. Finally, transportation involves safely moving patients to medical facilities where they can receive the necessary care.

This comprehensive approach ensures that the response to a multi-patient incident is efficient and can save lives. While other options focus on specific aspects of emergency response, they do not encompass the entire scope of what is required during such incidents, making the combination of triage, extrication, treatment, and transportation the most critical component in ensuring the safety and well-being of all patients involved.