What about the other extreme, let everyone do all the tests imaginable? Or course it doesn't make sense. The balance is on how mych evidence available before a

What about the other extreme, let everyone do all the tests imaginable? Or course it doesn't make sense. The balance is on how mych evidence available before a test is suggested. Evidence is the incident rate among the population and the false negative rate(specificity). I'm using very loosely defined terms here because I'm too lazy to quote the definition. But no need false dichotomy.