Medicine, Cardiac Rhythm, Electrophysiology, Cardiology, Arrhythmia.
next step, then, is a Holter monitor: a 3-lead or 12-lead ECG attached externally that can monitor the patient for up to 72 hours. Some Holter monitors have a button that the patient can press when they have symptoms, or it can be useful to ask your patient to keep a diary of their activities and