What should you know about the Kardia ECG machine?

The device detects the heart's electrical activity through contact with its electrodes and turns that signal into a rhythm tracing. A recording may help capture an episode of palpitations or an irregular rhythm when it happens. Movement, poor contact, dry skin or electrical interference can make a tracing difficult to interpret.

A normal-looking recording does not explain every cause of chest discomfort, breathlessness or fainting, and an abnormal label is not the same as a confirmed diagnosis. Clinicians consider symptoms, examination, medicines and medical history. A standard electrocardiogram may record more leads and may be needed for a fuller assessment.

Sit quietly, keep both hands still, follow the device instructions and record what you were feeling and when it began. Save the tracing with its date and symptom note so a clinician can compare episodes. Do not repeatedly check the device instead of seeking care, and do not change heart medicines because of an app message. Keep the equipment clean and dry according to the manufacturer guidance.

Seek emergency help for chest pressure, severe breathlessness, fainting, new weakness, confusion or a fast or irregular heartbeat with feeling very unwell. Arrange a clinical review for recurring palpitations, unexplained dizziness, or repeated inconclusive or abnormal recordings. Bring the device or exported tracings if requested.

Ask whether this device suits your symptoms, how recordings should be shared, and whether you need a clinic ECG or other monitoring. Clarify which symptoms should prompt urgent help and whether any implanted device or medication affects use.