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Manufacturer
Model
What This Guide Helps With
Damage after cleaning or disinfection, including cracks, clouding, residue, liquid intrusion, degraded controls, display problems, or strip-port contamination.
Step-by-Step Troubleshooting
1. Remove Questionable Equipment From Patient Use
If cleaning damage affects the display, housing integrity, strip port, controls, electrical safety, or ability to disinfect the meter, remove it from clinical use.
Provide another verified meter.
Expected outcome: A physically compromised meter is not used for patient testing.
2. Confirm What Changed After Cleaning
Determine what cleaning or disinfection event preceded the problem and what symptom followed.
Document whether the issue involves clouding, cracks, discoloration, sticky controls, unreadable display areas, liquid in openings, or strip-port errors.
Expected outcome: The observed damage and its timing are documented.
3. Inspect the Housing
Check all accessible exterior surfaces for cracks, separation, swelling, softened material, discoloration, missing labels, degraded seals, or sharp edges.
Expected outcome: Housing integrity is clearly assessed.
If the housing no longer protects the meter or cannot be safely disinfected, stop troubleshooting and remove it from service.
4. Inspect the Display and Controls
Check the display for clouding, dark areas, loss of contrast, touch or button problems, moisture beneath the surface, or cleaning residue.
Expected outcome: The display remains readable and controls respond consistently.
5. Inspect the Strip Port
Look for moisture, residue, corrosion, debris, cracks, or softened material around the strip-port opening.
Do not probe or perform internal cleaning.
Expected outcome: The strip port is dry, clean, and structurally intact.
6. Allow the Meter to Dry When Appropriate
If the problem appears limited to external residual moisture and there is no evidence of internal liquid intrusion, allow the meter to dry using approved handling practices.
Do not use unapproved heat sources or compressed air.
Expected outcome: Residual external moisture is eliminated without further damage.
7. Clean Residue Using the Approved Procedure
If visible residue is present on approved external surfaces, reclean the meter using the facility-approved and manufacturer-compatible method.
Avoid excessive liquid application.
Expected outcome: Residue is removed without affecting the housing, display, or strip port.
8. Perform Functional Testing
Power on the meter and verify display readability, controls, barcode scanning if applicable, strip recognition, and approved QC or functional testing.
Expected outcome: All affected external functions work consistently.
If all functions are normal and no structural damage remains, troubleshooting may stop after documentation.
9. Evaluate Cleanability
Even if the meter operates electrically, verify that damaged surfaces can still be adequately cleaned and disinfected.
Cracked, delaminated, or degraded surfaces may make the device unsuitable for continued clinical use.
Expected outcome: The meter remains physically suitable for safe infection-control practices.
10. Escalate Permanent or Internal Damage
If cleaning has caused cracking, liquid intrusion, corrosion, unreadable display areas, unreliable controls, strip-port failure, or surfaces that cannot be properly disinfected, stop troubleshooting.
Expected outcome: A compromised meter is removed from circulation.
If the Problem Persists
External residue and drying issues have been ruled out. Remaining possibilities include chemical damage to plastics or seals, internal liquid intrusion, damaged display components, strip-port damage, or internal electronic effects.
The meter should be:
- Removed from service.
- Labeled Out of Service.
- Sent for repair or bench evaluation.
- Evaluated using appropriate Nova Biomedical documentation and approved test equipment.
- Repaired only by qualified personnel.
- Verified for structural integrity, cleanability, functional operation, and approved QC performance before return to service.
A meter does not pass return-to-service simply because it powers on if its housing or surfaces can no longer be safely disinfected.
Clinical Use Tip
Verify both electrical function and infection-control integrity after suspected cleaning or disinfectant damage.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Nursing reported that the StatStrip display became cloudy and the strip port began producing intermittent errors after cleaning."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found excess dried cleaning residue around the display edges and accessible strip-port opening with no evidence of structural cracking or internal liquid intrusion."
Resolution
What action was taken.
Example:
"The meter was recleaned using the approved procedure, allowed to dry, and successfully passed display, strip-recognition, and control testing before return to service."
Helpful Details to Include (If Known)
- Cleaning or disinfectant product used
- How the product was applied
- Visible residue
- Cracks or housing damage
- Display condition
- Control response
- Strip-port condition
- Evidence of moisture intrusion
- QC or functional-test results
- Whether surfaces remain cleanable
- Final device status
Final Thought
Cleaning-related damage must be evaluated for both function and infection-control integrity. Verify external causes first, avoid invasive cleaning, escalate permanent damage, and document exactly what was observed and tested.
That is successful troubleshooting.