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For pressure modes, the alarm occurs when the delivered pressure exceeds the target patient pressure by 5 cmH2O or more during the inspiratory phase. The device will automatically cycle to
the expiratory phase and continue to operate. The alarm will automatically terminate when the delivered pressure falls within 5 cmH2O of the target patient pressure during the inspiratory phase.
Low Inspiratory Pressure Alarm
This is a high priority alarm. It is detected differently for volume and pressure therapy modes.
For volume modes, the alarm will sound if the measured patient pressure is less than the Low Inspiratory Pressure setting specified by the clinician. The alarm will automatically terminate when the peak pressure at the end of the breath is greater than or equal to the Low Inspiratory Pressure alarm setting.
For pressure modes, the alarm occurs when the delivered pressure is 5 cmH2O or more below the target patient pressure during the inspiratory phase. The alarm will automatically terminate when the delivered pressure comes within 5 cmH2O of the target patient pressure during the expiratory phase.
High Minute Ventilation Alarm
This alarm is a high priority alarm. It occurs when the patient’s minute ventilation is greater than the High Minute Ventilation alarm setting. The device continues to operate. The alarm will automatically terminate when the calculated minute ventilation is less than the High Minute Ventilation alarm setting.
Low Minute Ventilation Alarm
This alarm is a high priority alarm. It when the patient’s minute ventilation is less than the Low Minute Ventilation alarm setting. The device continues to operate. The alarm will automatically terminate when the calculated minute ventilation is greater than the Low Minute Ventilation alarm setting.
Chapter 3 Modes, Features, and Alarms
