What is the correct sequence of actions for an adult who is unresponsive and not breathing?

The correct sequence of actions when encountering an adult who is unresponsive and not breathing is to first call 911, and then start CPR. This sequence is crucial because immediate emergency assistance is needed for a person who is unresponsive and not breathing. By calling 911 first, you ensure that professional help is on the way while you tend to the victim.

Time is critical in these situations. If you start CPR before calling for help, you may delay the arrival of emergency services. Calling for help ensures that trained professionals can provide advanced care as quickly as possible, which is vital for the survival of the victim.

After notifying emergency services, starting CPR will help maintain blood circulation and oxygenation to vital organs, especially the brain. This dual approach maximizes the chances of survival by ensuring continuous assistance is on the way while also administering lifesaving measures right away.