Supraventricular tachycardia (SVT) is frequently encountered by health care clinicans.1,2 Therefore, it is imperative for clinicians to recognize the clinical manifestations of SVT and choose the best test to establish a diagnosis. Available tests include a Holter monitor (if symptoms occur daily or every other day), ambulatory electrocardiographic monitoring (if symptoms occur weekly or biweekly), or an implantable loop recorder (if symptoms are infrequent or a diagnosis could not be established with noninvasive monitoring despite ongoing symptoms). Long-term management of SVT includes pharmacologic therapy, catheter ablation, or observation. The selection of long-term treatment depends on several factors, including the frequency and severity of the patient’s symptoms, the presence of structural heart disease, the presence of noncardiac comorbidities, and the patient’s preferences.1,2