Cardiac arrest can strike without warning, stopping the heart and cutting off blood flow to the brain and other vital organs. Every second counts. Without immediate action, brain damage can begin within minutes, and death can follow quickly. The good news is that anyone—even those without medical training—can save a life with the right knowledge. This step-by-step guide will walk you through exactly what to do during a cardiac arrest emergency. Whether you're at home, in the workplace, or out in public, knowing how to respond can make all the difference. When you act fast and follow these steps, you become the most important link in the chain of survival.
1. Recognize the Signs of Cardiac Arrest
The first and most critical step is recognizing that cardiac arrest is happening. Cardiac arrest is different from a heart attack. It involves a sudden loss of heart function, which means the person will collapse without warning, become unresponsive, and stop breathing normally. They will have no pulse and show no signs of life.
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