![SA Ambulance Service on Twitter: "Do you know what to do if someone's heart stops? Sudden cardiac arrest affects more than 1,800 South Australians each year. Only 1 in 10 survive. This SA Ambulance Service on Twitter: "Do you know what to do if someone's heart stops? Sudden cardiac arrest affects more than 1,800 South Australians each year. Only 1 in 10 survive. This](https://pbs.twimg.com/media/EkKn1sTVoAA3m0i.jpg)
SA Ambulance Service on Twitter: "Do you know what to do if someone's heart stops? Sudden cardiac arrest affects more than 1,800 South Australians each year. Only 1 in 10 survive. This
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![Sudden Cardiac Arrest Association (SCAA) on Twitter: "#911 With nearly 70% of all sudden cardiac arrests witnessed at home, it is important to know what to do. Call 911. Start CPR. Send Sudden Cardiac Arrest Association (SCAA) on Twitter: "#911 With nearly 70% of all sudden cardiac arrests witnessed at home, it is important to know what to do. Call 911. Start CPR. Send](https://pbs.twimg.com/media/E3izYuzWEAAEF4c.jpg:large)