What is a Holter monitor?
A Holter monitor is a portable way of taking an electrical trace of your heartbeat over a period of time (usually 24 hours) while you go about your normal day-to-day activities. The machine records this trace so that a technician and cardiologist (heart doctor) can review your heart rhythm and report back information about your heart to your general practitioner. The test can help pick up if your heartbeat is too fast, too slow or irregular.
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