Should is the first step to take if a person has myocardial infarction?

? MI ?: 18 year old boys don't have MI's almost ever. If they are feeling chest pain it is almost invariably reflux wherein stomach contents are being regurgitated up the esophagus and it is called heartburn. A key to diagnosing a true MI is that the pain is exercise induced-I.e. It gets worse when you're walking up the stairs or whatever and it gets better when you stop. If that is so, get to ER pronto.