OFA Emergency Response & Scene Assessment 3

Question 1

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

Accepted Answer

The forces and events that caused the injury

Answer

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

Question 2

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

Accepted Answer

The area of highest contamination directly around the hazard

Answer

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

Question 3

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

Accepted Answer

Stay back and call for specialized help

Answer

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

Question 4

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

Accepted Answer

Danger

Answer

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

Question 5

A secondary survey is MOST appropriately performed:

Accepted Answer

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

Answer

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

(OFA) Occupational First Aid Certification Practice Test