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Manufacturer
Model
What This Guide Helps With
Helps troubleshoot ECG analysis problems caused by electrode contact, patient signal quality, connections, or external conditions.
Step-by-Step Troubleshooting
1. Confirm Patient Safety and Equipment Availability
If the device is needed for emergency care, use a verified alternate defibrillator before troubleshooting. Expected outcome: Patient care capability remains available.
2. Confirm the ECG Analysis Problem
Verify whether ECG analysis will not begin, stops during analysis, or does not provide a result. Document the exact behavior. Expected outcome: The reported condition is confirmed.
3. Verify Electrode Placement and Connection
Inspect electrode placement and ensure the electrode connector is fully seated. Confirm electrodes are properly attached and in usable condition. Expected outcome: Proper electrode connection and patient signal path are confirmed.
4. Check ECG Signal Quality
Verify that electrode contact is adequate and that excessive motion, poor contact, or environmental interference is not affecting signal quality. Expected outcome: A usable ECG signal is present.
5. Substitute Known-Good Electrodes
If available, use verified compatible electrodes to determine whether the original electrodes are causing the issue. Expected outcome: ECG analysis begins normally if electrodes were the cause.
6. Verify Normal Device Function
Perform an operational check to confirm the device can acquire ECG information and complete analysis under appropriate test conditions. Expected outcome: ECG analysis completes normally and troubleshooting can stop.
7. Escalate Continued ECG Analysis Failure
If the device cannot complete ECG analysis after external checks, remove it from service for evaluation. Expected outcome: Device is safely routed for qualified service review.
If the Problem Persists
Common external causes such as electrode condition, connections, patient signal quality, and accessories have been ruled out. The device should be:
- Removed from service
- Labeled Out of Service
- Sent for repair or bench evaluation
- Evaluated using appropriate manufacturer documentation and approved test equipment
- Repaired or configured only by qualified personnel
Return-to-service testing should verify proper ECG acquisition and defibrillator functionality.
Clinical Use Tip
Do not delay emergency care while troubleshooting ECG analysis; use another verified defibrillator if needed.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Clinical staff reported that the LIFEPAK 1000 would not complete ECG analysis after electrode application."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found the electrode pads had poor connection due to improper placement."
Resolution
What action was taken.
Example:
"Clinical Engineering corrected electrode placement, verified ECG acquisition and analysis operation, and returned the device to service."
Helpful Details to Include (If Known)
- ECG analysis behavior observed
- Electrode condition
- Electrode connection inspection
- Signal quality observations
- Test results after correction
- Final device status
Final Thought
Reliable ECG analysis requires a clear signal path and proper verification. External causes should be eliminated first, unresolved failures should be escalated, and corrective actions should be documented clearly. That is successful troubleshooting.