First Aid and Workplace Practices
What this domain tests
First Aid and Workplace Practices covers the immediate response to electric shock, burns and fires, plus daily habits that prevent accidents: housekeeping, hazard reporting, safe lifting, and correct use of PPE.
Core rules
- Make the scene safe first: switch off the supply, call 108, and do not touch a casualty who may still be in contact with live parts.
- Check response, airway and breathing. For an adult who is unresponsive and not breathing normally, start CPR: 30 chest compressions to 2 rescue breaths, 100–120 compressions per minute, about 5–6 cm deep.
- For electrical burns, cool with clean running water for about 20 minutes, cover with a sterile non-stick dressing, and do not apply oil, toothpaste or ice.
- Treat for shock by laying the casualty flat, raising the legs, keeping them warm, and giving nothing by mouth.
- Use the PASS technique on a fire extinguisher: Pull the pin, Aim at the base, Squeeze the handle, Sweep. Use CO₂ for electrical equipment.
- At the workplace, keep walkways clear, store materials safely, report near misses, and lift with the legs, not the back.
Worked example
A helper grips a bare live wire and collapses. You do not pull him away. You switch off the main, lock it, call 108, check breathing, and begin CPR because he is unresponsive and not breathing. You send someone to bring the first-aid box and the CO₂ extinguisher.
Traps that cost marks
Touching the casualty before isolation; giving water to an unconscious person; delaying CPR to search for a pulse you cannot reliably feel; using water on an electrical fire; and treating a serious burn with home remedies.