ECG artefacts

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ECG Artefacts: Causes and Solutions

Understanding ECG Artefacts

Definition: Artefacts are irregularities or disturbances in ECG readings caused by patient movement or external factors.

Causes of Artefacts

Patient Movement: Moving arms and legs during the ECG recording can result in a shaky and irregular rhythm on the screen.

Electronic Devices: Presence of electronic devices, such as mobile phones, can cause interference and artefacts in the ECG.

Medical Conditions: Conditions like Parkinson's disease or tremors can contribute to artefacts in the ECG.

Minimizing Artefacts

Placement Adjustments: For patients with natural shakes or tremors, reposition limb leads closer to the trunk (e.g., from wrists to shoulders) to reduce artefacts.

Eliminating External Factors: Address potential causes such as electronic devices or ask the patient to remove objects from their pockets.

Dealing with Noisy Data

Evaluation and Communication: Assess if patient movement or external factors are contributing to noisy data. Communicate with the patient to remain still or remove interfering devices.

Lead Placement: Ensure correct lead placement to maintain accuracy in the ECG recording.

Documentation: If artefacts persist despite attempts to minimize them, document the presence of noisy data and the reasons behind it.