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Asset Type
Manufacturer
Model
What This Guide Helps With
Physical damage to the integrated clip or sensor causing poor fit, inaccurate readings, or inability to obtain SpO₂ values.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Remove the device from use if readings are unreliable or inconsistent.
- Use an alternate pulse oximeter for patient monitoring.
Expected: Patient is safely monitored with a functioning device
Why it matters: Damaged probes can produce inaccurate SpO₂ readings, impacting clinical decisions
Perform Visual Inspection of Clip and Sensor Area
- Inspect for cracks or broken plastic
- Check for loose hinge or weak spring tension
- Look for misaligned sensor pads
Expected: Clip is intact, aligned, and provides firm pressure
Why it matters: Proper alignment and pressure are required for accurate light transmission and detection
Check Sensor Window Condition
- Inspect for dirt, debris, or residue
- Look for scratches or clouding
- Clean gently with approved wipes if contaminated
Expected: Sensor windows are clean and unobstructed
Why it matters: Any obstruction can interfere with light absorption and signal accuracy
Verify Clip Tension and Finger Fit
- Place the device on a test finger
- Ensure the clip closes fully
- Confirm consistent pressure across the finger
Expected: Device grips finger securely without slipping
Why it matters: Poor contact leads to signal loss or erratic readings
Test Device Functionality
- Power on the unit and apply to a known good test subject
- Observe SpO₂ and pulse readings
- Check for stability and consistency
Expected: Stable waveform and accurate readings
Why it matters: Confirms whether damage is affecting performance
Check for Housing Separation or Structural Damage
- Inspect for separation at seams
- Check for internal movement when handling
- Look for signs of impact damage
Expected: Device housing is fully intact
Why it matters: Structural damage may affect internal sensor alignment
Compare with Known Good Device (If Available)
- Test the same patient with another pulse oximeter
Expected: Comparable readings between devices
Why it matters: Helps confirm whether the issue is device-specific
If the Problem Persists
If physical damage, weak clip tension, or sensor misalignment is confirmed and cannot be corrected through cleaning or basic checks, the issue is likely external causes ruled out and internal or structural.
Remove the device from service, label it Out of Service, and send it for repair or replacement evaluation.
Clinical Use Tip
Do not attempt to use a damaged clip on an active patient. Always transfer monitoring to a reliable device before troubleshooting.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Pulse oximeter not staying on finger and giving inconsistent readings."
Cause
What was observed during troubleshooting.
Example:
"Clip hinge weakened and sensor alignment compromised due to physical wear."
Resolution
What action was taken.
Example:
"Removed device from service and sent for repair evaluation."
Helpful Details to Include (If Known)
- Condition of clip (cracked, loose, broken hinge)
- Sensor window condition (clean vs damaged)
- Reading stability during testing
- Comparison with known good device
- Any visible impact damage
- Final device status (removed from service or returned to use)
Final Thought
Physical integrity is critical for pulse oximetry accuracy. Always rule out external damage first, and do not attempt to compensate for a failing clip. Proper escalation and documentation protect both patient safety and equipment reliability.
That is successful troubleshooting.