Exercise stress test.  The treadmill test can reveal hidden problems in the heart.
D002561:Cerebrovascular Disorders / Q000175:diagnosis*; D004562:Electrocardiography / Q000379:methods*; D005080:Exercise Test; D007722:Health Knowledge, Attitudes, Practice; D006339:Heart Rate; D006801:Humans; D010807:Physical Endurance; D014481:United States