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“iRhythm was founded on a fundamental desire to enable arrhythmia diagnosis for all patients as early as possible in their course."

Uday Kumar, MD,

ZIO® Event Card


ZIO® Event Card

The ZIO® Event Card is a prescription-only, single-use, disposable, looping ECG monitor that can be worn for up to 30 days. With the profile of three stacked credit cards and weighing less than 2 ounces, the ZIO® Event Card is intended to be comfortable to wear and inconspicuous under clothing.

The ZIO® Event Card records the ECG during normal daily activities. It continually scans the heart for ECG activity, but only keeps the data when patients indicate they have a symptom by pressing the RECORD button. Recordings are then transmitted over the phone by the patient to a representative at the iRhythm Clinical Centers (iCC).

The ZIO® Event Card is indicated for use on patients who experience transient symptoms such as syncope, palpitations, shortness of breath, or dizziness.

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CAUTION: Federal (USA) law restricts the sale of this device to or on the order of a physician.