Most people panic and don’t know what to do when they suspect myocardial infarction. This causes them to fall into unconsciousness in a matter of seconds. But, even though you just have a few seconds to react there is something you can do, which can be potentially life-saving.
You must remember that first you need to call an ambulance, that’s crucial. After you’ve called professional help you need to start coughing forcefully!
Start coughing deep and strong; don’t stop, in a period of two seconds, extending the exhale. This can save your life or the life of someone you care about.
This following video will demonstrate the correct coughing technique in such a situation.
When you’re taking deep breaths you send oxygen into your lungs and the coughing pressures the heart and keeps the circulation flowing.
This pressure on the heart will bring the sinus rhythm back to normal and this is the most important thing to keep the person alive until professional help arrives.
source:healthy tips world