Overview

Your doctor may order heart-monitoring tests to determine the severity of your palpitations. Tests fall into two general categories.

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"Passive" tests monitor your regular heart activity. These include the electrocardiogram (ECG), holter monitor, ECG monitor (portable), ECG monitor (implantable), and echocardiogram.

"Active" tests aim to provoke the arrhythmia so it can be studied as it happens. These include:the stress test, tilt table test, and electrophysiologic testing and mapping

This section has more on:

• Passive tests
• Active tests