Patient information

Designed with you in mind


Why has my doctor referred me for a Zio XT heart monitor?


Zio is a cardiac monitoring service that is proven to detect irregular heart rhythms quickly and accurately. Because Zio is so discreet and comfortable, you can continue with your daily activities, even showering and exercising, assured that Zio is capturing every heartbeat.

Frequently asked questions about heart conditions


Your heart might beat too slow, too fast, or with an irregular beat. It may feel like skipped beats or a brief pause. It might be so slight that you don’t even feel it or experience any symptoms. You may have an irregular heartbeat or an arrhythmia. Fortunately, there are treatments available for arrhythmias. However before you can begin treatment, the condition must be diagnosed.

A simple, one-time test with the Zio by iRhythm system could be all you need to find out whether or not you have an arrhythmia and what kind you have. Your doctor can then use this data to prescribe the most effective form of treatment.

Our solution

Continuous, uninterrupted ECG monitoring

Zio XT Patient-friendly Monitor

The Zio service was designed specifically to facilitate high patient compliance and allow data to be recorded uninterrupted and continuously for up to 14 days.

No gaps in data due to patient-centric design

Convenient button to mark episodes

Patients can continue daily activities while wearing the Zio monitor, including showering and exercising.

A simple path to a clear diagnosis

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After the comfortable, easy-to-wear Zio monitor is applied, the Zio patch records and stores every single heartbeat.
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These ECG recordings are analysed by a powerful Zio system that identifies any irregular rhythms you've experienced—how many, what type, and when. In a study, clinicians were able to reach a diagnosis of 90% of the time with the Zio system1.
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A definitive diagnosis to accelerate your care
Your doctor receives a clear report that shows how many and what types of irregular heart rhythms you experienced, as well as your normal heart rhythm, and when they happened — all to help determine the best course of treatment.

Live without restrictions


The Zio ambulatory cardiac monitor is a small, discreet and unobtrusive patch – you might even forget you’re wearing it. The Zio monitor records and stores every beat of your heart, whether you’re sleeping, exercising or showering.

Zio vs. Holter monitoring


Holter monitors are typically worn for 24-48 hours, limiting the time to record any irregular heart rhythm you may have. The Zio monitor can be continuously worn for up to 14 days, constantly capturing your heart rhythm, giving you peace of mind.

Frequently asked questions

Have questions about Zio XT?


For the first 24 hours post application, please avoid getting the Zio monitor wet or sweating excessively, i.e. during exercise. After that, carry on with regular activities. You can shower and exercise after the first 24 hours. Wear the Zio monitor for the length of time advised by your clinician, but no longer than 14 days. The Zio monitor is recording and storing every heartbeat while you are wearing it. Your clinician uses this data, analysed by iRhythm, to determine the right course of action for you. While working properly, the monitor will not flash or make any sound. If you have any questions, please call iRhythm Customer Services Team on 0808 189 3411.

"I’ve worn a 24-hour Holter and it was quite a laborious process and it didn’t come to the right diagnosis, the Zio patch was quick and easy and was diagnosed fast, so much better."

Charlotte Miller

Get in touch

Need more information on the Zio service?

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    1. Source: Barrett, P., et al. (2014). Comparison of 24 Hour Holter Monitoring Versus 14 Day Novel Adhesive Patch Electrocardiographic Monitoring. American Journal of Medicine.