What should First Responders do first upon arriving at an emergency scene?

Upon arriving at an emergency scene, it is crucial for First Responders to conduct a scene size-up assessment initially. This assessment serves multiple purposes: it helps responders gauge the situation, identify potential hazards, evaluate the number of victims, and determine the appropriate resources needed to manage the emergency effectively.

By performing a size-up, responders can prioritize actions based on the severity of the incident and the immediate needs of the victims, ensuring that they provide aid in a safe and organized manner. This strategic approach also allows responders to develop a tactical plan, which is essential for effective incident management and for maintaining safety for both the victims and the responders themselves.

Understanding the environment, identifying the mechanism of the incident, and assessing any ongoing threats are critical components of this process. Only after a thorough size-up can responders begin to provide necessary medical interventions or take additional actions, such as establishing a perimeter or communicating with bystanders, in an informed and efficient manner.