Final answer:
Before attempting CPR, ensure safety, check for responsiveness, call for help, and perform chest compressions while following proper techniques.
Step-by-step explanation:
Before attempting CPR, there are several things you must do:
- Ensure your safety and the safety of others by checking for any potential dangers or hazards.
- Assess the person's responsiveness by gently shaking and asking if they are okay.
- If the person is unresponsive, immediately call for emergency medical assistance.
- Place the person on a firm, flat surface.
- Position your hands correctly on the sternum between the lines at T4 and T9.
- Begin performing chest compressions at a depth of at least 5 cm and a rate of 100 compressions per minute.
- Continue performing CPR until the person regains consciousness or medical professionals take over.