Such patients are included in this guideline if there is sufficient suspicion that their heart disease is a likely source of symptoms to warrant cardiac evaluation. If the evaluation demonstrates that IHD is unlikely to cause the symptoms, the evaluation of noncardiac causes is beyond the scope of this guideline. If the evaluation demonstrates that IHD is the likely cause of their recurrent symptoms, subsequent man- agement of such patients does fall within this guideline. The approach to screening and management of asymptom- atic patients who are at risk for IHD but who are not known Table 2. 