What is the first step in the scene size-up?

The first step in the scene size-up is to ensure the scene is safe for you and others. This critical action involves assessing the environment for any potential hazards that could pose a risk to yourself, the patient, and bystanders. By verifying that the scene is safe, responders can effectively prevent additional injuries and ensure that emergency care can be delivered without complications.

In emergency situations, safety is paramount because hazards like traffic, fire, unstable structures, or aggressive individuals can escalate the situation and cause further harm. Conducting a thorough assessment allows responders to proceed with confidence, knowing they are operating in a controlled and secure area.

Other options, such as activating emergency services, checking the patient's medical history, or beginning CPR, are essential components of patient care but occur after establishing a safe scene. Activating emergency services is often done quickly, but it is still vital to ensure safety first to prevent putting responders in danger while waiting for additional help.