Amigo ECG machine: what patients should know

Small adhesive electrodes placed on the skin detect signals and send them to the device, which produces a tracing. The machine records electrical activity; it does not send electricity into the body. Features can differ by model, so the clinic should explain the particular equipment being used.

The tracing may reveal an irregular rhythm, an unusually fast or slow rate, or electrical changes that require further assessment. A clinician interprets it alongside symptoms, examination findings and medical history. An automated message printed by the device is a preliminary analysis and is not a diagnosis by itself.

A short recording captures only that moment. Symptoms that come and go may require longer monitoring, while some heart problems need blood tests or imaging because they do not appear clearly on a standard ECG. A normal tracing therefore does not explain every episode of chest discomfort, breathlessness, dizziness or palpitations.

Wear clothing that allows access to the chest, wrists and ankles, and tell the clinician about implanted heart devices, skin sensitivities and current symptoms. Oils or lotions can prevent electrodes from sticking. The clinician may clean or shave small skin areas to obtain a clear signal.

Lie still, relax your muscles and breathe normally while the tracing is collected, unless the operator gives different instructions. Movement, talking and poor electrode contact can create artefact that resembles an abnormal signal. Afterwards, the pads are removed and you can usually return to normal activity unless your symptoms or clinical plan require otherwise.

Call emergency services for chest pressure or pain that is severe or persistent, especially with sweating, nausea, breathlessness, collapse, or discomfort spreading to the arm, back, neck or jaw. Also seek emergency help for fainting with ongoing palpitations, severe breathing difficulty or sudden weakness and speech trouble.

Do not delay emergency care to arrange an ECG yourself or rely on a previous normal result. For brief recurrent palpitations, unexplained dizziness or reduced exercise tolerance without emergency features, arrange a clinical assessment and describe when the episodes happen and how long they last.

Ask whether a clinician has reviewed the tracing, what any reported change means in the context of your symptoms, and whether comparison with an earlier ECG is useful. If the recording did not capture an episode, ask whether longer rhythm monitoring or another test would be more informative.