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What This Guide Helps With
False bed exit alarms caused by sensitivity settings, patient movement, mattress issues, or sensor/calibration problems.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Confirm the patient is safe and not attempting to exit the bed.
- If alarms are frequent or unreliable, place the patient on appropriate fall precautions.
Expected: Patient is safe and monitored
Why it matters: False alarms can lead to alarm fatigue and missed real events
Verify the Reported Issue
- Activate the bed exit alarm and observe when false alarms occur:
- Patient repositioning
- No patient in bed
- Random activation without movement
Expected: Alarm behavior is clearly reproducible
Why it matters: Helps determine if issue is sensitivity, setup, or hardware related
Check Bed Exit Alarm Sensitivity Setting
- Review current sensitivity level (Low / Medium / High).
- Reduce sensitivity if set too high
- Match setting to patient size and mobility
Expected: Fewer false alarms after adjustment
Why it matters: High sensitivity is the most common cause of nuisance alarms
Inspect Mattress Type and Placement
- Verify correct Hillrom-compatible mattress is installed.
- Check for:
- Mattress centered on frame
- No gaps or shifting
- Proper thickness and type
Expected: Mattress sits evenly and securely
Why it matters: Bed exit system relies on pressure distribution; incorrect mattresses cause false readings
Check for Objects or Weight on Bed
- Ensure no items are affecting sensors:
- Blankets piled unevenly
- Equipment or bags on bed
- Bed rails bearing weight
Expected: Only patient weight is applied normally
Why it matters: Uneven or shifting weight can trigger false exit detection
Verify Patient Positioning
- Confirm patient is positioned correctly on the mattress:
- Centered on bed
- Not sitting on edge unless intended
Expected: Stable pressure distribution
Why it matters: Edge positioning can trigger exit alarms prematurely
Inspect Bed Frame and Deck Alignment
- Check for:
- Loose deck sections
- Misalignment
- Mechanical instability
Expected: Bed frame is stable and aligned
Why it matters: Structural issues can affect sensor readings
Perform a Power Reset
- Unplug bed from AC power, wait 30 seconds, then reconnect.
- Reinitialize bed exit alarm and test again.
Expected: Alarm system resets and stabilizes
Why it matters: Clears temporary control or sensor faults
Test Bed Exit Alarm Function
- With no patient:
- Activate alarm
- Apply and remove pressure manually
- Observe for proper activation timing and consistency
Expected: Alarm triggers only with meaningful pressure change
Why it matters: Confirms whether system is functioning within expected parameters
If the Problem Persists
If sensitivity, mattress, positioning, and external factors have been ruled out, the issue is likely internal (sensor mat, control board, or wiring).
Remove the bed from service, label it Out of Service, and send for repair or further bench evaluation.
Knowing when to stop prevents unnecessary risk and wasted time.
Clinical Use Tip
Do not rely on a bed with frequent false alarms for fall prevention. Move the patient to a known working bed before troubleshooting whenever possible.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Nursing reports bed exit alarm activating repeatedly without patient movement."
Cause
What was observed during troubleshooting.
Example:
"Sensitivity set too high combined with uneven mattress positioning causing false pressure readings."
Resolution
What action was taken.
Example:
"Adjusted sensitivity setting and repositioned mattress; verified normal alarm function."
Helpful Details to Include (If Known)
- Sensitivity level before/after adjustment
- Mattress type verified
- Alarm behavior during testing
- Presence of extra items on bed
- Bed frame condition
- Power reset performed
- Final device status
Final Thought
Bed exit alarms are highly dependent on proper setup and patient conditions. Focus on external factors first—settings, mattress, and positioning—before suspecting failure. Safe escalation and clear documentation are key to effective Clinical Engineering support.
That is successful troubleshooting.