ECG artefactsECG artefacts are recording interferences unrelated to the electrical activity of the heart.
Tremor artefactA tremor artefact is the superposition of rhythmic or irregular oscillations on the ECG tracing caused by the patient's muscle shivering rather than the electrical activity of the heart.
Motion artefactA motion artefact is a distortion of the ECG recording caused by patient movement rather than the electrical activity of the heart.
Baseline wanderBaseline wander is a slow, smooth shifting of the ECG baseline up and down relative to the horizontal axis.
50 Hz mains interference50 Hz mains interference is a recording artefact appearing as uniform, fine oscillations of the baseline at the frequency of the mains electricity supply.
Reversed arm electrodesReversed arm electrodes (LA/RA) is a technical application error where the left arm electrode is placed on the right arm and vice versa.
Limb lead reversalsLimb lead reversals are technical errors in connecting electrodes on the arms and/or legs that produce a pseudopathologic recording.
Incorrect V1 and V2 placementIncorrect V1 and V2 placement is the application of precordial electrodes in an intercostal space higher than normal (typically the 2nd or 3rd intercostal space instead of the 4th).
Lead detachmentLead detachment (lead off) is a recording artefact that occurs when electrode-skin contact is lost or a cable is disconnected.
Hypothermia shivering artefactA hypothermia shivering artefact is the superposition of fine, rapid, irregular baseline oscillations on the ECG tracing due to muscle tremor from shivering during…
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