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What This Guide Helps With
Distal OCCLUSION alarm causing stopped infusion due to downstream blockage, pressure buildup, or flow restriction in the IV line or patient site.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Stop the infusion and assess the patient
- Transfer infusion to a backup pump if therapy must continue
- Verify patient stability before proceeding
Verify the Reported Alarm and Behavior
- Confirm the Distal OCCLUSION! alarm is displayed
- Observe when the alarm occurs (startup vs during infusion)
- Check if auto-restart attempts occurred
- Verify infusion has stopped
Check IV Line for Kinks or Obstructions
- Inspect entire distal tubing from pump to patient
- Look for kinks, bends, or pinched sections
- Check under bed rails or patient positioning
- Straighten any compromised tubing
Inspect Clamps and Stopcocks
- Ensure all clamps are open
- Verify stopcocks are aligned correctly
- Confirm no downstream ports are closed
Assess IV Site Condition
- Check for swelling, redness, or infiltration
- Assess for resistance when flushing (if appropriate)
- Confirm site patency
Check for Blocked or Occluded Accessories
- Inspect filters, extension sets, and connectors
- Replace any suspected blocked components
- Ensure unobstructed flow path
Restart Infusion or Clear Alarm
- Restart infusion after correcting the issue
- Clear program or open/close cassette door if needed
- Confirm normal operation resumes
Isolate Device vs. Setup
- Replace IV tubing with a known good set
- Test infusion off-patient per facility policy
- Determine if issue follows tubing or device
If the Problem Persists
If all external causes have been ruled out and the alarm continues:
- Remove the pump from service
- Label Out of Service
- Send for repair or bench evaluation
Persistent occlusion alarms may indicate internal pressure sensing or flow control issues.
Clinical Use Tip
Never troubleshoot occlusion alarms on an active patient. Always transition the patient to a backup infusion device and confirm IV site patency before restarting therapy.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Pump alarming 'Distal OCCLUSION! Check IV line and site,' infusion stopped during use."
Cause
What was observed during troubleshooting.
Example:
"Kinked IV tubing downstream of pump causing flow restriction and pressure buildup."
Resolution
What action was taken.
Example:
"Straightened tubing, verified clamps open, restarted infusion. Alarm cleared and pump returned to service."
Helpful Details to Include (If Known)
- Alarm behavior
- Accessories swapped
- Power behavior
- Environmental factors
- Indicator lights
- Final device status
Final Thought
Distal occlusion alarms are most commonly caused by simple external restrictions. Following a structured, external-first troubleshooting process ensures rapid resolution, maintains patient safety, and prevents unnecessary equipment downtime.
That is successful troubleshooting.