6. Act in time
If someone collapses and their heart stops, it could be up to you to do basic life support. Every second counts.
Be ready to help when someone collapses. It’s as easy as ABC: that means check their Airway, Breathing and Circulation.
So know your ABC
Phone the emergency services or get someone to a hospital right away if they have chest pain or discomfort, are short of breath, are in a cold sweat and seem to be having a heart attack. Suspect pain radiating from the chest to both arms, to the neck, jaw or stomach. If they’ve collapsed, buy time until help arrives by having a go at resuscitating them. You can’t let someone lie there with no circulation, or they’ll have irreversible brain damage.
Look about you. First, consider ...