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What This Guide Helps With
This guide addresses the Distal AIR alarm indicating that air has been detected in the IV line at the distal sensor, which stops infusion and requires the line to be cleared and reprimed before safe operation can resume.
Step-by-Step Troubleshooting
1. Ensure Patient Safety First
- Stop the infusion immediately
- Disconnect from the patient if air is suspected
- Transfer therapy to a backup infusion device if needed
2. Verify the Reported Alarm and Behavior
- Confirm alarm message is displayed
- Observe when the alarm occurs (startup, during infusion, intermittent)
- Check if infusion has stopped
- Look for visible air bubbles in distal tubing
3. Inspect Distal IV Line for Air (Most Common Cause)
- Visually inspect entire distal tubing
- Look for air bubbles or gaps in fluid column
- Check all connections for looseness
4. Check IV Bag/Container and Upstream Line
- Ensure IV bag is not empty or near empty
- Verify upstream tubing is fully primed
- Check for air introduction during bag changes
5. Reprime the Line per Procedure
- Open cassette door
- Clear programs if required
- Reprime IV line completely per facility procedure
6. Reinstall Cassette and Restart Infusion
- Close cassette door securely
- Press START to resume infusion
7. Isolate Accessory vs Device Issue
- Replace IV set with a new properly primed set
- Try a different fluid bag
8. Check for Sensor Obstruction or Contamination
- Inspect cassette and sensor area
- Look for fluid contamination or debris
- Ensure cassette is properly seated
9. Stop When Resolved
- Return pump to service once alarm clears
- Monitor briefly for normal operation
If the Problem Persists
If the alarm continues after proper repriming, IV set replacement, and fluid source verification, external causes have been ruled out.
- Remove the device from service
- Label Out of Service
- Send for repair or bench evaluation
Clinical Use Tip
Never troubleshoot air alarms while connected to a patient. Always disconnect and confirm the line is completely air-free before restarting infusion.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Pump alarming 'Distal AIR! Disconnect / reprime. Press START.' and infusion stopped."
Cause
What was observed during troubleshooting.
Example:
"Air detected in distal IV line due to incomplete priming."
Resolution
What action was taken.
Example:
"Opened cassette door, cleared program, reprimed IV line per procedure. Verified no air present and returned pump to service."
Helpful Details to Include (If Known)
- Alarm behavior
- Accessories swapped
- Power behavior
- Environmental factors
- Indicator lights
- Final device status
Final Thought
Air-in-line alarms must always be treated as real until proven otherwise. Always start with external checks and proper priming, and escalate to device service if the issue persists after all external causes are ruled out.
That is successful troubleshooting.