Upon arriving at the scene of an overturned tractor-trailer with a hazardous material leak, what should you do first?

Positioning the ambulance upwind from the vehicle in the event of a hazardous material leak is essential for ensuring the safety of both the EMS crew and any potential victims. Being upwind means that the ambulance is situated so that the wind is blowing away from it, reducing the risk of inhalation or exposure to toxic substances that may be released during the leak.

This action allows the emergency medical team to assess the situation from a safe distance while still being able to mobilize quickly if needed. Moreover, positioning upwind is a critical safety protocol in hazardous material incidents, as it protects first responders and other individuals from harmful effects of airborne contaminants.

In contrast, positioning downwind would place the crew in greater danger, potentially leading to harmful exposure. Entering the truck without proper protective equipment and without first securing the scene would also increase risk significantly. Finally, while waiting for the fire department might seem prudent, it is often necessary for EMS personnel to take immediate precautions to safeguard their own safety and that of other responders before waiting for specialized teams.