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What This Guide Helps With
Alarm: PCOMP not reached indicating target pressure is not achieved, leading to inadequate ventilation due to leaks, disconnections, or incorrect tube configuration.
Step-by-Step Troubleshooting
1. Ensure Patient Safety First
- Immediately assess the patient’s ventilation status
- If ventilation is compromised, remove from ventilator and provide alternate ventilation (e.g., bag-valve mask)
2. Verify the Reported Alarm and Behavior
- Confirm the “PCOMP not reached” alarm is active
- Observe if it occurs during inspiration
- Check if delivered pressure is lower than set pressure
- Look for low tidal volumes or ineffective breaths
3. Check for Circuit Leaks (Most Common Cause)
- Inspect all connections from ventilator to patient
- Look for loose fittings or disconnected tubing
- Check for cracks, holes, or worn components
4. Verify Artificial Airway Integrity
- Ensure endotracheal (ET) tube cuff is properly inflated
- Listen for audible air leaks
- Confirm mask seal if using non-invasive ventilation
5. Confirm Tube Type and I.D. Settings
- Verify correct tube type is selected (ET vs trach)
- Confirm internal diameter (I.D.) matches actual tube size
6. Check Ventilator Settings
- Verify set inspiratory pressure (Pinsp/PCOMP)
- Ensure pressure limits are appropriate
- Check for overly restrictive limits
7. Inspect Expiratory Valve and Components
- Remove and reseat expiratory valve
- Inspect for contamination or improper assembly
8. Perform a System Test (If Available)
- Run the ventilator system/self-test
- Verify no leak or pressure-related failures
If the Problem Persists
If all external causes such as leaks, settings, airway issues, and valve problems are ruled out and the alarm continues:
- Remove the ventilator from service
- Label the device as Out of Service
- Send for repair or bench evaluation
Clinical Use Tip
Never troubleshoot this alarm on an active patient. Always transfer the patient to a backup ventilator before evaluating the device.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Ventilator alarming PCOMP not reached with low delivered pressure during use."
Cause
What was observed during troubleshooting.
Example:
"Leak identified at patient circuit connection preventing pressure buildup."
Resolution
What action was taken.
Example:
"Re-secured circuit connection, verified no leaks, and confirmed normal pressure delivery."
Helpful Details to Include (If Known)
- Alarm behavior
- Accessories swapped
- Power behavior
- Environmental factors
- Indicator lights
- Final device status
Final Thought
Pressure delivery alarms should always be treated as real ventilation failures. Start with leaks and airway integrity before escalating. Proper troubleshooting and documentation ensure patient safety and effective resolution.
That is successful troubleshooting.