Sudden Cardiac Arrest (cont.)
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What Are the Signs and Symptoms of Sudden Cardiac Arrest?
Usually, the first sign of sudden cardiac arrest (SCA) is loss of consciousness (fainting). At the same time, no heartbeat (or pulse) can be felt.
Some people may have a racing heartbeat or feel dizzy or lightheaded just before they faint. Within an hour before sudden cardiac arrest, some people have chest pain, shortness of breath, nausea (feeling sick to the stomach), or vomiting.
Medically Reviewed by a Doctor on 8/20/2014
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