Cardiac Arrest
About Cardiac Arrest
Cardiac arrest is the abrupt loss of heart function in a person who may or may not have been diagnosed with heart disease. It can come on suddenly or in the wake of other symptoms. Cardiac arrest is often fatal if appropriate steps aren’t taken immediately.
![woman calling for help for man on ground](/https/www.heart.org/-/media/Images/Health-Topics/Cardiac-Arrest/Unresponsive-man-on-ground.jpg?h=338&iar=0&mw=600&w=600&sc_lang=en)
Cardiac Arrest Information Sheets
Support That Empowers
Recovery becomes so much more manageable when you have the right kind of emotional support. Our online community of patients, survivors and caregivers is here to keep you going no matter the obstacles. We’ve been there, and we won’t let you go it alone.
![graphic of man on laptop with super hero shadow](/https/www.heart.org/-/media/Images/Health-Topics/Support-Network/SuperBoy.jpg?h=480&iar=0&mw=600&w=600&sc_lang=en)
![WLLWidget1 Interactive Cardiovascular Library Thumbnail image](/https/www.heart.org/-/media/Images/Health-Topics/Watch-Learn-and-Live/WLLWidget.jpg?h=221&iar=0&mw=390&w=390&sc_lang=en)
Watch, Learn and Live
See your cardiovascular system in action with our interactive illustrations and animations.Join the Nation of Lifesavers today! Learn CPR. Save a Life.
You could be the difference between life and death for someone experiencing a cardiac event. Be ready to act by learning CPR.
![hands performing hands-only CPR on chest hands performing hands-only CPR on chest](/https/www.heart.org/-/media/CPR-Images/Nation-of-Lifesavers/CPRQuiz_Option1.jpg?h=394&iar=0&mw=600&w=600&sc_lang=en)
![Woman reading Heart Insight on tablet Woman reading Heart Insight on tablet](/https/www.heart.org/-/media/Images/Health-Topics/Main-Landing/Heart-Insight--form.jpg?h=534&iar=0&mw=2000&w=800&sc_lang=en)