Most people who experience cardiac arrest at home, work or in a public location die because they don't receive immediate CPR from someone on the scene. As a bystander, don't be afraid. Your actions can only help.
When calling 911, you will be asked for your location. Be specific, especially if you’re calling from a mobile phone as that is not associated with a fixed address. Answering the dispatcher’s questions will not delay the arrival of help.
How to Give Hands-Only CPR.
If you see a teen or adult suddenly collapse, call 9-1-1 and push hard and fast in the center of the chest to the beat of the classic disco song "Stayin' Alive." CPR can more than double a person's chances of survival, and "Stayin' Alive" has the right beat for Hands-Only CPR.