Medical Emergencies · single question
There is a gas leak near the dental office. What is the FIRST thing you should do?
Show answer and explanation
Correct answer: A. Turn on ventilation/open windows and evacuate
In case of a gas leak, the priority is: (1) Evacuate all persons from the area immediately; (2) Open windows and doors for ventilation if safe; (3) Do NOT turn electrical switches on or off (sparks can ignite gas); (4) Call emergency services from OUTSIDE the building. Closing doors would trap the gas. Turning on ventilation (forced air) may help, but evacuation is the primary action. Do NOT use any electrical switches inside.
- A. Incorrect. Closing doors traps the gas inside, increasing explosion and asphyxiation risk — this is the WRONG action.
- B. CORRECT. Ventilate the area and evacuate all occupants immediately — these are the key first steps in a gas leak emergency.
- C. Incorrect. Calling from inside the building is dangerous — even a phone can create a spark and ignite accumulated gas. Call from outside.
- D. Incorrect. Operating any electrical switch (on OR off) can create sparks that ignite gas. Avoid all electrical activity inside.
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