PHILIPS Respironics Trilogy 202, User Manual, Page: 54 / 179

Chapter 3 Modes, Features, and Alarms
45
Low Vti Alarm
This is a high priority alarm. It occurs when the delivered tidal volume
is less than the Low Vti alarm setting for three consecutive breaths.
The device continues to operate. The alarm will automatically
terminate when a breath occurs in which the delivered tidal volume
exceeds the Low Vti alarm setting.
High Respiratory Rate Alarm
This is a high priority alarm. It occurs when the respiratory rate is
greater than the High Respiratory Rate alarm setting. The device
continues to operate. The alarm will automatically terminate when
the measured respiratory rate is less than the High Respiratory Rate
alarm setting.
Low Respiratory Rate Alarm
This is a high priority alarm. It occurs when the respiratory rate is less
than the Low Respiratory Rate alarm setting. The device continues to
operate. The alarm will automatically terminate when the measured
respiratory rate is greater than the Low Respiratory Rate alarm setting.
High Inspiratory Pressure Alarm
This alarm occurs in several stages and escalates from an audible beep for
the first two occurrences to a high priority alarm if the problem continues.
It is detected differently for volume and pressure therapy modes.
For volume modes, the alarm will sound if the measured patient
pressure exceeds the High Inspiratory Pressure setting specified by
the clinician. The alarm will automatically terminate when the peak
inspiratory pressure is less than or equal to the High Inspiratory
Pressure alarm setting.
For pressure modes, the alarm occurs when the delivered pressure
exceeds the target patient pressure by 5 cmH
2
O 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
cmH
2
O of the target patient pressure during the inspiratory phase.