Zoetek Medical White Paper


Electrocardiography (ECG) machines are critical for diagnosing cardiac conditions, guiding treatment plans, and assessing patient health. The seamless operation of ECG machines is imperative for accurate diagnoses. In line with Zoetek Medical’s mission to keep equipment functioning as expected, this paper highlights the top five ways ECG machines may fail and provides guidance on how to address these challenges effectively.

1. Electrode Connection Issues

One of the primary failure points is poor electrode contact. Improper placement or loose electrodes can result in noisy or distorted ECG tracings. To address this, ensure proper electrode application, conduct thorough skin preparation, and secure electrodes firmly.

2. Cable and Lead Failures

Cables and leads connecting the patient to the ECG machine are susceptible to wear and tear. Damaged cables can lead to signal loss or interference. Regularly inspect cables for fraying, cracking, or exposed wires. Promptly replace compromised components to maintain signal integrity.

The Interconnection Between Equipment and Patient Care
Zoetek Medical's Approach to Equipment Care

3. Signal Artifacts and Interference

ECG signals are sensitive and can be influenced by external interference such as electrical noise, muscle tremors, or patient movement. Implement grounding measures and ensure a quiet testing environment. Additionally, instruct patients to remain as still as possible during recordings.

4. Software Glitches and Calibration Errors

Software glitches or calibration errors can result in incorrect measurements or abnormal ECG readings. Regularly update and maintain ECG software, following the manufacturer’s recommendations. Perform calibration checks and quality assurance procedures to verify accurate measurements.

5. Power Supply and Battery Issues

Power interruptions or low battery levels can disrupt ECG recordings and potentially lead to data loss. Regularly inspect power cords and connections. Keep spare batteries on hand and adhere to recommended charging schedules to avoid power-related failures.

Responding to ECG Machine Failures

Document and Isolate: Immediately document any failure, noting the circumstances and any relevant symptoms or error messages. Isolate the machine to prevent further use until the issue is resolved.

Contact Support: Reach out to Zoetek Medical’s technical support for guidance. Our experts can help diagnose the problem and recommend appropriate solutions.

Follow Troubleshooting Steps: If provided, follow the manufacturer’s troubleshooting guidelines. These steps may help identify and resolve common issues.

Ensure Patient Safety: If a failure occurs during patient testing, ensure patient safety first. Disconnect the patient from the machine, explain the situation, and proceed with manual monitoring if necessary.

Preventive Maintenance: Implement a proactive maintenance schedule for your ECG machines. Regular inspections, software updates, and calibration checks can mitigate potential failures.

Continuous Improvement in Equipment Management


An ECG machine’s reliability is essential for accurate cardiac assessments and patient care. By being aware of common failure modes and taking prompt and effective action, healthcare providers can ensure uninterrupted ECG testing. Zoetek Medical’s commitment to problem-solving aligns perfectly with addressing ECG machine failures and maintaining the high standards of diagnostic accuracy that medical practice demands.