The alarm configuration is essential to ensure patient safety and to detect ventilation issues. These settings are located in the bottom left corner of the screen.
Pressure Alarm Limits
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Pmax (Maximum Pressure Limit)
Triggers an alarm if pressure exceeds the set maximum.Possible causes include:
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Coughing
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Endotracheal or tracheostomy tube obstruction
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Excessive condensation in the ventilator circuit
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Downward migration of the endotracheal tube into a mainstem bronchus
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Bronchospasm
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Patient clashing with the ventilator
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Low lung compliance due to:
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Pulmonary edema
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Pneumothorax
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Lung consolidation
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Pmin (Minimum Pressure Limit)
Triggers an alarm if the peak airway pressure is too low.Possible causes include:
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Circuit disconnection
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Upward migration of the endotracheal tube
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Leaks at circuit connection points
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Endotracheal cuff issues
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Low tidal volume
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Visual and Audible Alarms
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The illuminated warning triangle provides a visual indication of an alarm condition.
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The TFT display shows the cause of the alarm.
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Alarm levels are color-coded:
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Yellow for low-priority alarms
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Red for high-priority alarms
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Power Indicators (LEDs)
Located to the left of the key membrane, the three power LEDs indicate the ventilator’s power source and battery status:
LED Location | Indicates |
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Top LED | Ventilator running on internal battery |
Middle LED | Ventilator running on mains (external) power |
Bottom LED | Battery is charging |
Summary
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Proper alarm settings help detect patient or equipment issues promptly.
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Pressure alarms are triggered by abnormal airway pressure conditions.
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Visual and audible alerts provide immediate feedback to the user.
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Power LEDs clearly indicate operating and charging status.