NHS shares key symptoms of two health emergencies as it says 'spread the word'

NHS shares key symptoms of two health emergencies as it says 'spread the word'If you believe someone is experiencing either health emergency, call 999 immediatelyView 2 Images Cardiac arrests and heart attacks are often mixed up (Image: Getty Images/PhotoAlto)The NHS has issued an important warning about the main symptoms of two serious health emergencies. ‌"Do you know the difference between a heart attack and cardiac arrest?" ‌A heart attack, also called a myocardial infarction, is a severe medical event where the heart's blood supply is suddenly blocked. If you believe someone is having a heart attack, you should call 999 immediately. A person may experience several symptoms before a sudden cardiac arrest occurs.