West Coast EMT Block One Exam

At an automobile crash scene with downed power lines, what is the safest first step?

1. Mark off a danger zone around the downed lines

2. Proceed with normal extrication procedures

3. Advise the patients to carefully get out of the car

4. Remove the lines with a nonconductive object

The correct answer is: Mark off a danger zone around the downed lines

Marking off a danger zone around downed power lines is the safest first step at an automobile crash scene. In this scenario, downed power lines present a significant hazard due to the risk of electric shock or electrocution. Establishing a danger zone helps to prevent bystanders and emergency personnel from inadvertently entering an area where they could be at risk. This action is crucial for ensuring everyone’s safety as it allows for a clear perimeter that protects those at the scene while enabling focused efforts to manage the situation effectively. Furthermore, it creates an awareness of the danger posed by the live wires, allowing responders to strategize on how best to handle the situation while waiting for utility companies or specialized personnel to arrive and secure the area. Other options fail to prioritize safety in the presence of electrical hazards. Normal extrication procedures without assessing for hazard may put responders and victims at greater risk. Directing patients to exit the vehicle could expose them to electric shock if they are not aware of the danger. Removing power lines with a nonconductive object is not advisable; it is best left to trained professionals with the appropriate equipment to handle such dangerous situations safely.