Many people think that routine cardiac tests, including EKG, stress testing, and coronary perfusion studies, help predict risk of heart attack and guide prevention measures. Not true, for people who have no history or symptoms of heart trouble.
Ex-president GW Bush, apparently during a routine PE, was taken to a nearby hospital and had angioplasty (PCI) and a stent insertion. Was it necessary? For what condition, exactly? What is his prognosis now? I think it was overuse of medical procedures.