Defer Urgent Noninvasive Testing in Low-Risk Chest Pain Patients

To minimize missed acute coronary syndrome, the American Heart Association endorses noninvasive cardiac testing (eg, treadmill ECG, stress echocardiogram, stress myocardial perfusion, coronary computed tomography [CT] angiogram) before discharge or within 72 hours after discharge, after acute myocardial infarction has been excluded by serial biomarker tests (Class 2A recommendation).1 The fundamental assumption is that early identification of obstructive coronary artery disease may lead to coronary revascularization, with a subsequent reduction in acute myocardial infarction and cardiac death.

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