Consider pharmacologic stress test under the following circumstances:

Acute thrombophlebitis or deep venous thrombosis

Neuromuscular, musculoskeletal or arthritic condition that precludes treadmill exercise

Patient's inability or lack of desire to perform the test

Easy fatigability

Consider cardiac catheterization under the following circumstances:

Recent (within 6 days) acute myocardial infarction

Angina at rest

Severe symptomatic left ventricular dysfunction

Potentially life-threatening arrhythmias

Acute pericarditis, myocarditis or endocarditits

Severe aortic stenosis

Acute pulmonary infarct or embolus

Acute or serious general illness