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Frequently Asked Questions

Most individuals who experience cardiac arrest had one or more symptoms in the hour leading up to the event. Some symptoms may even appear weeks before a cardiac arrest occurs. However, many people who suffer a cardiac arrest show no prior warning signs.


Possible warning signs of a heart attack, which is a major cause of cardiac arrest, include the following:


- Shortness of breath (more common in women than men)

- Extreme fatigue or unusual tiredness

- Back pain

- Flu-like symptoms

- Stomach pain, nausea, and vomiting

- Chest pain, especially angina (more common in men than women)

- Frequent dizziness or fainting, particularly during intense exercise, while sitting, or lying on your back

It is likely that a person is having a cardiac arrest if they:

- Collapse suddenly and lose consciousness (pass out)

- Are not breathing or their breathing is ineffective or they are gasping for air

- Do not respond to shouting or shaking

- Do not have a pulse

Cardiac arrest is particularly concerning for children and infants because their vital organs are still developing. As it can lead to sudden death without warning, it’s crucial to recognize the signs early and know how to apply AED pads on an infant. When children and infants experience cardiac arrest, their heart rhythm becomes erratic, often resulting in ventricular fibrillation, which causes the heart to stop functioning properly. In these situations, a defibrillator is the most effective tool to restore normal heart rhythm and save their life. Prompt recognition and action are key to giving the child the best chance of survival

No, while both sudden cardiac arrest (SCA) and a heart attack (myocardial infarction) involve the heart, they are distinct conditions. SCA is an electrical issue with the heart, whereas a heart attack is a 'plumbing' issue. In some cases, a heart attack, which may not be fatal on its own, can lead to sudden cardiac arrest.

Sudden cardiac arrest (SCA) occurs when the heart's normal rhythm suddenly becomes erratic, preventing it from pumping blood effectively. As a result, the victim collapses, stops breathing, loses responsiveness, and has no detectable pulse. SCA can affect anyone, at any time — children, teens, athletes, and the elderly alike. While the risk of SCA is higher in older individuals and those with heart conditions, a significant number of victims have no apparent risk factors.

What is sudden cardiac arrest (SCA)? img

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