Before sudden cardiac arrest, people may experience dizziness, chest pain, shortness of breath, racing heartbeat, or even nausea or vomiting.
They may look like they collapsed.
They will not be responsive.
They will not be breathing.
Often they are very sweaty.
They may appear to be resting especially if they have just completed physical activity.
They may look like they are having a seizure, but don’t be fooled.
They may be making gasping or gurgling or raspy noises.
They might have just suffered a severe blow to the chest or been struck by lightning or been in a drowning situation.
They might go into cardiac arrest in their sleep.