text: 2017 guidelines from the AHA/ACC/HRS state that MRI, cardiac computed tomography (CT), or radionuclide angiography can be useful in detecting and characterizing underlying heart disease when echocardiography fails to provide an accurate evaluation of LV or RV function and/or assessment of structural changes. Electrophysiologic (EP) testing can be useful when an uncertain diagnosis of sustained monomorphic ventricular tachycardia. An electrophysiological study is especially useful for assessing the risk of ventricular tachycardia in patients with ischemic cardiomyopathy, non-ischemic cardiomyopathy, or adult congenital heart disease who have syncope or other ventricular arrhythmia symptoms and who do not meet indications for a primary prevention implantable cardioverter-defibrillator.
option_0: Pulseless ventricular tachycardia other diagnostic studies
option_1: Junctional tachycardia other diagnostic studies
option_2: Ventricular tachycardia other disgnostic tests
option_3: Pulseless ventricular tachycardia risk factors
option_4: Atrial fibrillation with LBBB EKG examples
option_5: Atrial flutter other diagnostic studies
option_6: Second degree AV block other diagnostic studies
option_7: Third degree AV block other diagnostic studies