What is the cause for smeared trace of ECG machine?

Several factors can cause a smeared trace on an ECG machine, including:

- Loose electrodes: Ensure the ECG electrodes are firmly attached to the patient's skin and properly connected to the machine.

- Patient movement: Ask the patient to remain still during the ECG recording to avoid movement artifacts.

- Electrical interference: Identify any sources of electrical interference, such as nearby electrical equipment, and eliminate or minimize their impact on the ECG signal.

- Faulty ECG machine: Check the ECG machine itself for any technical issues or malfunctions that may be causing the smeared trace.

- Poor quality ECG cable: Faulty or low-quality ECG cables can cause interference and result in a smeared trace.

- Skin preparation: Ensure the patient's skin is properly cleaned and prepared before attaching the electrodes to improve signal quality.

- Excessive moisture: Avoid excessive moisture on the skin or around the electrodes, as this can interfere with the ECG signal and cause smearing.

- Equipment settings: Verify that the ECG machine settings, such as paper speed and sensitivity, are appropriate for accurate ECG recording.

- Muscle tremors or shivering: If the patient is experiencing muscle tremors or shivering, this can affect the ECG trace and cause smearing.