Introduction
An ECG is a short snapshot. A rhythm monitor can record for a day, a week or longer, depending on how often symptoms happen. The aim is to capture the rhythm at the time of symptoms.
Choosing the right monitor
The monitoring period is chosen around your symptoms. A 24- or 48-hour monitor may be enough for daily symptoms, while an event recorder, patch monitor or longer-term device may be more useful for less frequent episodes. The clinical question matters as much as the duration — for example, whether the concern is palpitations, blackouts or a suspected heart-rhythm condition.
You will be told how to wear the monitor, whether you can shower or exercise, and how to record symptoms. The report is interpreted alongside the diary, not just by counting heartbeats.
Key points
- The monitoring period should match the frequency of symptoms.
- A diary or symptom button can help link sensations with recordings.
- Results are interpreted in the context of your symptoms and medical history.
Patient note
“The best monitor is not necessarily the longest one. It is the one with a realistic chance of answering your particular question.”
Questions about rhythm monitoring
How often do symptoms occur? Which monitor duration is most suitable? What should I do while wearing it?
FAQ
Can I exercise while wearing a monitor?
You will be given specific instructions, but it is often helpful to continue normal activities unless advised otherwise.