Which function is primarily the role of the second due company at an MCI?

In a Mass Casualty Incident (MCI), the primary role of the second due company is to assist with triage operations. Triage is a critical process that prioritizes treatment based on the severity of patients' injuries and their needs for immediate medical attention. The second due company, upon arrival at the scene, supports the first responders by helping to quickly assess casualties, categorize them into different triage levels, and prepare them for transport to medical facilities.

This ensures that those who need urgent care receive it without delay, thereby improving overall patient outcomes in a high-stress situation. The involvement of the second due company in triage allows for a more efficient management of resources and personnel during an MCI, which is essential when multiple patients are involved. It is crucial for optimizing the overall response and ensuring that the most critical patients are prioritized effectively.