The first and often only symptom of Sudden Cardiac Arrest is
Loss of consciousness (fainting) due to lack of blood to the brain.
At the same time, no heartbeat or pulse can be felt.
While there are often no warning signs before Sudden Cardiac Arrest occurs some of these symptoms may come before Sudden Cardiac Arrest:
Fatigue or weakness
Shortness of breath
FaintingDizziness or light headedness
Heart palpitations
Chest pain
