Heart attacks and cardiac arrests are two serious medical emergencies that require immediate attention. While some of the symptoms can be similar, a heart attack and sudden cardiac arrest are two different conditions with different causes. Understanding the difference can help you get the right care for yourself or someone else who may be experiencing these serious medical emergencies.
A heart attack occurs when the blood flow to the heart is blocked. This can happen because of a blockage in one or more arteries, or it may be caused by plaque buildup on the walls of those arteries. Heart attacks can be fatal if not treated quickly, so it's important to know what signs indicate a heart attack and seek medical attention. If you have chest pain that does not go away after several minutes and/or starts to feel like a tightness or pressure in your chest, call 911 immediately.
Cardiac arrest is a medical emergency. It's when the heart stops beating and pumping blood to the rest of your body. Cardiac arrest can be caused by a heart attack, drug overdose, or a sudden irregular heartbeat (arrhythmia). Heart attacks and arrhythmias are different conditions, but both can lead to cardiac arrest.
A heart attack is caused by blockages that stop or reduce blood flow through one or more of your coronary arteries (the vessels that supply blood to your heart muscle). A person having a heart attack often has severe chest pain and shortness of breath. If you think you're having a heart attack, call 911 right away so paramedics can give you life-saving treatment with medications called thrombolytics or clot busters.
If you or someone you know is experiencing one of the following symptoms, it's important to seek medical attention right away.
If you see someone experiencing a heart attack, call 911 immediately.
If the person is conscious, have them chew and swallow an aspirin.
If you have a nitroglycerin spray (available at pharmacies), administer 2 sprays under the tongue.
Begin CPR if the person becomes unconscious or loses consciousness after giving nitroglycerin spray.
If someone is having a heart attack, call 911 immediately and start CPR if they're not breathing. If you have received CPR training, continue to do chest compressions until help arrives. Do not give up!
A heart attack is not a sudden cardiac arrest, but it can lead to one. Heart attacks happen when there's an interruption of blood flow to your heart caused by a blockage in one or more of the arteries supplying blood to your heart muscle. Sudden cardiac arrest is caused by an electrical malfunction in the heart that causes it to stop beating properly. Either way, if you're around someone experiencing either an acute coronary syndrome (heart attack) or sudden cardiac arrest—which are two different medical emergencies—you need to act fast because time is critical for saving lives.
In the end, we hope that you trust your intuition if you’re ever faced with this situation. If the person is conscious and responsive, it’s probably a heart attack—even if they are experiencing chest pain or discomfort. However, if they suddenly lose consciousness or stop breathing, it’s most likely a cardiac arrest. In either case, calling 911 right away is the best way to save their life. By keeping these facts in mind and staying calm during an emergency situation like this one, you can make all the difference for someone in need!
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