Circuit Disconnect Alarm
This is a high priority alarm. It occurs when the breathing circuit is disconnected or has a large leak. The device continues to operate. The alarm will automatically terminate when the circuit is reconnected or the leak is fixed.
Apnea Alarm
This is a high priority alarm. It occurs when the patient has not triggered a breath within the time specified in the apnea alarm setting. The device continues to operate. The alarm will automatically terminate when two consecutive patient breaths are detected that meet the apnea alarm time setting.
High Vte Alarm
This is a high priority alarm. It occurs when the estimated exhaled tidal volume is greater than the High Vte alarm setting for three consecutive breaths. The device continues to operate. The alarm will automatically terminate when a breath occurs in which the exhaled tidal volume does not reach the High Vte alarm setting.
Low Vte Alarm
This is a high priority alarm. It occurs when the estimated exhaled tidal volume is lower than the Low Vte alarm setting for three consecutive breaths. The device continues to operate. The alarm will automatically terminate when a breath occurs in which the exhaled tidal volume exceeds the Low Vte alarm setting.
When AVAPS is on, this alarm will occur when the calculated tidal volume is less than 90% of the target tidal volume setting. The alarm will automatically terminate when a breath occurs in which the exhaled tidal volume is equal or greater to 90% of the target tidal volume setting.
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WARNING
You should not rely on any single alarm to detect a circuit disconnect condition. The Low Tidal Volume, Low Minute Ventilation, Low Respiratory Rate, and Apnea alarms should be used in conjunction with the Circuit Disconnect alarm. The Apnea alarm is only intended for spontaneously breathing patients.
Chapter 3 Modes, Features, and Alarms
