ZOLL Propaq MD

12-Lead ECG Acquisition or Transmission Failure

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Asset Type

Defibrillator

Manufacturer

ZOLL

Model

Propaq MD

What This Guide Helps With

12-lead ECG cannot be acquired, stored, or transmitted because of electrodes, cables, signal quality, patient data, connectivity, configuration, or network issues.

Step-by-Step Troubleshooting

1. Protect the Patient and Preserve Diagnostic Workflow

If a 12-lead ECG is clinically urgent, obtain it using another verified ECG-capable device rather than delaying diagnosis while troubleshooting.

Expected outcome: Clinical decision-making is not delayed by the equipment problem.

2. Determine Whether Acquisition or Transmission Is Failing

Ask whether the unit:

Treat acquisition and transmission as separate parts of the troubleshooting path.

Expected outcome: The failure is isolated to ECG acquisition, stored data, or communication.

3. Inspect Electrodes and Lead Placement

For acquisition problems, check:

Expected outcome: All required electrodes have stable contact. If acquisition succeeds after correcting electrodes or placement, verify the tracing and stop acquisition troubleshooting.

4. Inspect the 12-Lead Cable and Lead Wires

Examine the cable and lead set for:

Expected outcome: The external lead system is intact and stable.

5. Substitute Known-Good ECG Accessories

Use known-good compatible cables, lead wires, and simulator connections as appropriate.

Expected outcome: If acquisition works with known-good accessories, replace the faulty external component and verify 12-lead acquisition.

6. Verify Signal Quality Using an ECG Simulator

Use an approved 12-lead-capable simulator when appropriate.

Confirm that the device can acquire a stable tracing without lead-off indications or excessive artifact.

Expected outcome: The Propaq MD successfully acquires a stable simulated 12-lead ECG.

7. Verify Required Patient and Destination Information

For transmission problems, confirm that required patient identification, destination selection, or other visible workflow information is entered appropriately.

Do not change protected network or institutional configuration without authorization.

Expected outcome: The record contains the information required for normal transmission workflow.

8. Check the Communication Path

Determine whether the intended connection uses Wi-Fi, cellular communication, or another supported pathway.

Check:

Expected outcome: A local infrastructure problem is distinguished from a device-specific communication problem.

9. Attempt a Controlled Transmission

Using approved test data or a test workflow, attempt transmission to the intended receiving system.

Confirm receipt at the destination whenever access permits.

Expected outcome: The 12-lead ECG is successfully transmitted and received. If correcting connectivity or destination selection restores transmission, troubleshooting can stop.

10. Perform Final Functional Verification

Confirm:

Expected outcome: The entire acquisition-to-destination workflow functions correctly.

11. Escalate Persistent Acquisition or Transmission Failure

If 12-lead acquisition fails with a simulator and known-good accessories, or transmission fails despite verified connectivity and infrastructure, remove the affected function or device from service according to clinical risk.

Expected outcome: Unresolved acquisition, configuration, communications, or internal faults receive qualified service evaluation.

If the Problem Persists

If electrodes, lead placement, ECG cables, simulator testing, patient information, destination selection, connectivity, and receiving-system availability have been ruled out, the remaining cause may involve the ECG acquisition system, communication hardware, stored configuration, network infrastructure, receiving system, or another service-level condition.

The device should be:

Verify successful 12-lead acquisition and end-to-end transmission before return to service.

Knowing when to stop external troubleshooting and involve networking, clinical systems, or manufacturer support is proper troubleshooting.

Clinical Use Tip

For urgent diagnostic ECG needs, obtain the 12-lead on another verified device before investigating a transmission problem.

Work Order Documentation (CCR Method)

CCR = Complaint, Cause, Resolution

Complaint

What was reported by the clinical staff.

Example:
"Clinical staff reported that 12-lead ECGs were acquired successfully but would not transmit from the Propaq MD."

Cause

What was observed during troubleshooting.

Example:
"Clinical Engineering found that the device had no usable network connection in the reported location while 12-lead acquisition itself tested normally."

Resolution

What action was taken.

Example:
"Connectivity was restored through the appropriate support pathway and successful 12-lead transmission and receipt at the destination were verified."

Helpful Details to Include (If Known)

Final Thought

Keep diagnostic care moving, separate acquisition problems from communication problems, verify external ECG accessories and the complete transmission path before assuming internal failure, escalate appropriately, and document both local testing and destination receipt.

That is successful troubleshooting.

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