Cardiac arrest is a medical emergency that occurs when the heart suddenly stops beating effectively. This means that it cannot pump blood to the rest of the body. Without immediate intervention, cardiac arrest can lead to death in just a few minutes. It is different from a heart attack, which occurs when blood flow to a part of the heart is blocked, but both conditions are serious and require urgent care.
Understanding cardiac arrest is crucial for health because it can happen to anyone, regardless of age or health status. When the heart stops, vital organs, including the brain, do not receive the oxygen they need to function. Quick action, like performing CPR or using an automated external defibrillator (AED), can help restore the heart's rhythm and increase the chances of survival.
The heart works by sending electrical signals that cause it to contract and pump blood. In cardiac arrest, these electrical signals become disorganized or stop altogether, preventing the heart from beating. This disruption means blood cannot circulate, leading to a lack of oxygen in the body’s organs and tissues. Understanding how the heart works can help people recognize the signs of cardiac arrest and the importance of acting quickly.
It is important to be aware of the signs of cardiac arrest, such as sudden collapse, lack of pulse, and unresponsiveness. Knowing how to respond in an emergency can save lives. Training in CPR and having access to an AED can make a significant difference in outcomes for someone experiencing cardiac arrest.