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Asset Type
Continuous Renal Replacement Therapy (CRRT)
Manufacturer
Model
What This Guide Helps With
Helps troubleshoot high filter pressure alarms related to circuit condition, tubing restrictions, setup, or treatment factors.
Step-by-Step Troubleshooting
1. Confirm patient safety and treatment status
Ensure clinical staff are aware of the alarm condition before troubleshooting. Do not interrupt therapy without appropriate clinical coordination. Expected outcome: Patient care remains protected during evaluation.
2. Confirm the exact alarm and timing
Verify when the filter pressure alarm occurs and whether it started after setup, during treatment, or after changes to the circuit. Expected outcome: The condition is accurately identified.
3. Inspect external circuit tubing
Inspect tubing between the access side, filter area, and return side for visible kinks, compression, clamps, or abnormal routing. Expected outcome: External restrictions are removed or ruled out.
4. Inspect disposable circuit installation
Verify visible disposable components are properly installed and seated according to approved clinical setup procedures. Expected outcome: Circuit installation appears correct.
5. Check for visible circuit abnormalities
Inspect for visible clotting, discoloration, leaks, or unusual conditions in accessible tubing and components. Expected outcome: No external abnormality is present.
6. Evaluate recent treatment changes
Review whether fluid settings, treatment changes, or recent circuit events correspond with the alarm occurrence. Expected outcome: External treatment-related contributors are identified or excluded.
7. Perform final functional verification
After correction, verify the alarm does not recur and the device continues normal CRRT operation. Expected outcome: Filter pressure alarm is resolved. Troubleshooting can stop.
If the Problem Persists
External causes such as tubing restrictions, circuit installation issues, and visible disposable problems have been ruled out. The device should be:
- Removed from service if safe operation cannot be maintained
- Labeled Out of Service
- Sent for repair or bench evaluation
- Evaluated using appropriate manufacturer documentation and approved test equipment
- Repaired or configured only by qualified personnel
Remaining concerns may involve pressure sensing or internal system operation requiring service evaluation.
Clinical Use Tip
Avoid delaying necessary renal support; use a verified alternate device if required.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Clinical staff reported a high filter pressure alarm on the Vantive PrisMax during treatment."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found an external tubing restriction affecting circuit flow."
Resolution
What action was taken.
Example:
"Clinical Engineering corrected the tubing routing, verified stable operation, and returned the device to service."
Helpful Details to Include (If Known)
- Alarm wording
- Treatment time when alarm occurred
- Circuit condition
- Tubing inspection findings
- Recent setup changes
- Visible abnormalities
- Final verification results
Final Thought
Effective CRRT troubleshooting focuses on patient safety, logical external checks, and proper escalation when internal evaluation is required. Verification and documentation complete the troubleshooting process. That is successful troubleshooting.