Emergency Response & Scene Assessment Flashcards

Which statement BEST describes the 'mechanism of injury' (MOI) concept in emergency assessment?

Answer: The forces and events that caused the injury

Mechanism of injury describes the forces involved (e.g., fall height, crush force) and helps predict hidden or internal injuries.

At a hazardous materials incident, the 'hot zone' is defined as:

Answer: The area of highest contamination directly around the hazard

The hot zone (exclusion zone) is the area of highest contamination; only properly equipped personnel may enter.

While performing a scene size-up, you notice overhead power lines are down near an injured worker. Your best action is to:

Answer: Stay back and call for specialized help

Downed power lines remain energized until utility workers confirm otherwise; first aiders must stay clear and summon specialized help.

In the DRABC framework, what does the 'D' stand for?

Answer: Danger

In DRABC, 'D' stands for Danger — always check for hazards to yourself, bystanders, and the patient before proceeding.

A secondary survey is MOST appropriately performed:

Answer: After life-threatening conditions have been addressed in the primary survey

The secondary survey (head-to-toe assessment) only begins after the primary survey has identified and managed immediate life threats.

When communicating with EMS dispatch about a workplace emergency, which piece of information is MOST critical to provide first?

Answer: The exact location of the emergency

Giving EMS the precise location first ensures help is dispatched to the correct address without delay.

Bystander control at an emergency scene is important primarily because:

Answer: Crowds can interfere with care and create additional hazards

Uncontrolled bystanders can obstruct access, increase panic, and create additional safety risks for both responders and the patient.