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Asset Type
Manufacturer
Model
What This Guide Helps With
Alarm: VTE high indicating excessive exhaled tidal volume causing potential overventilation or unsafe delivery conditions.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Immediately assess the patient’s respiratory status
- Confirm adequate ventilation and oxygenation
- Transition to a backup ventilator or manual ventilation if needed
Verify the Reported Alarm and Behavior
- Confirm the “VTE high” alarm is present on the display
- Observe if it occurs during mandatory or spontaneous breaths
- Check for higher-than-expected tidal volume readings
- Note if the alarm repeats consistently with each breath
Check Ventilation Settings (Most Common Cause)
- Review set tidal volume (VT)
- Check pressure support or inspiratory pressure levels
- Verify alarm limits are appropriately configured
Check for Circuit Leaks or Compensation Issues
- Inspect all breathing circuit connections
- Look for loose fittings or partial disconnections
- Verify proper placement of filters and humidifier components
Assess Patient Condition and Interaction
- Check for strong spontaneous breathing efforts
- Observe for coughing or ventilator asynchrony
- Coordinate with clinical staff for patient assessment
Run System Self Test (SST)
- Perform the System Self Test per manufacturer procedure
- Ensure the test completes without errors
Run Extended System Test (EST) if Needed
- Perform Extended System Test if the issue persists after SST
- Evaluate for deeper system or sensor-related faults
If the Problem Persists
If the alarm continues after external causes have been ruled out and system tests have been completed, this indicates a likely internal sensing or control issue.
- Remove the ventilator from service
- Label the device Out of Service
- Send for repair or bench evaluation
Clinical Use Tip
Never troubleshoot a ventilator actively delivering excessive tidal volumes on a patient. Always move the patient to a safe, functioning device first.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Ventilator alarming VTE high with elevated tidal volumes observed during use."
Cause
What was observed during troubleshooting.
Example:
"Settings verified and circuit checked with no external issues found; system tests completed with persistent alarm indicating internal issue."
Resolution
What action was taken.
Example:
"Removed ventilator from service, labeled out of service, and sent for further evaluation."
Helpful Details to Include (If Known)
- Alarm behavior
- Accessories swapped
- Power behavior
- Environmental factors
- Indicator lights
- Final device status
Final Thought
High tidal volume alarms represent a direct patient safety concern. Always verify settings and external factors first, then escalate appropriately when the condition persists.
That is successful troubleshooting.