What should be checked for after determining scene safety?

After determining scene safety, the responsiveness of the patient should be checked first. This step is crucial because assessing responsiveness allows the responder to quickly evaluate the patient's level of consciousness and overall condition. Understanding whether the patient responds to stimuli can provide important information about the severity of their condition and the potential need for immediate medical intervention.

If the patient is unresponsive, the responder can initiate basic life support measures more swiftly, such as calling for further assistance or preparing for CPR if necessary. In contrast, while signs of shock, vital signs, and the presence of bystanders are all important considerations in patient care, they come after ensuring that the patient is responsive and aware. By following this order, responders can ensure a structured and effective assessment of the patient's needs.