What are the essential steps and conditions for performing CPR?

Here are the answers to your class work:

1. CPR is needed when a person is: b) Unconscious and not breathing Explanation: CPR is necessary when a person is unresponsive and not breathing normally, indicating a potential cardiac arrest.

2. Before starting CPR, you must first: b) Ensure the environment is safe Explanation: The first priority in any emergency is to ensure the safety of both the rescuer and the victim to prevent further injury.

3. You should check breathing and pulse for no more than: b) 10 seconds Explanation: Rapid assessment is crucial; checking for breathing and pulse should not take longer than 10 seconds to avoid delaying life-saving interventions.

4. If the person is not breathing and has no pulse, what should you do immediately? a) Start CPR Explanation: Once it's confirmed that a person is not breathing and has no pulse, immediate initiation of CPR is critical to circulate blood and oxygen to vital organs.