Many people want to figure out if they have a medical emergency or not, before calling 911. Especially in a country like the USA, where a visit can mean thousan

Many people want to figure out if they have a medical emergency or not, before calling 911. Especially in a country like the USA, where a visit can mean thousands of dollars of expense or even going bankrupt. There are plenty of cases where it's hard for the layperson to determine if something is serious or not.