Heart Rhythm Disorders - University of Minnesota Physicians Heart at Fairview

Noninvasive Testing

Holter monitor

– takes the electrocardiogram to a longer, more active level. A monitor, invisible to the public, is worn under your clothing for up to three days. Small electrodes on your chest connect to the monitor. This is especially useful for detecting a very slow or very rapid heart rate.

Event monitor

– also called a loop recorder, is similar to an EKG. Typically worn for a month, the device keeps recording your heartbeat and overwrites the old recording. When you feel your heartbeat change, you press a button to freeze the recording captured seconds before. This retroactive recording is useful for patients with intermittent arrhythmias.

Stress test

– is used because some people develop an arrhythmia that can be seen when exercising.

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