A
LARMS
5-4
www.zoll.com
906-0731-01-05 Rev. C
Alarm Priorities
Alarm priorities define the operational status of the device and its ability to provide mechanical
ventilation. The alarm priorities are as follows:
High Priority
Mechanical ventilation under user control is no longer possible. This alarm priority requires
immediate intervention. This includes system failure alarms where the CPU has failed and a
backup has taken over to sound the audible and visual alarms. It also includes when the device
is turned on and there is no internal or external power source.
Pressing the Mute button has no effect on a high priority alarm. The alarm can only be silenced
by turning off the ventilator.
Medium Priority
Mechanical ventilation is active or is possible (maybe for a finite period of time) but, there is a
failure or fault with the patient, ventilator circuit, a pneumatic subsystem, or pulse oximeter.
This alarm priority requires immediate intervention by the user.
Pressing the Mute button mutes medium priority alarms for 30 seconds. If the alarm trigger still
exists after 3 seconds, the audible alarm recurs until you mute it again for another 30 second
period or the alarm is resolved.
Low Priority (Advisory)
Safe mechanical ventilation is active but, there is a fault that you must be aware of to ensure
safe management of the patient or ventilator. Low priority alarms present with both an audible
and yellow LED alarm signal alerting you to the condition. Pressing the Mute button cancels
the audible signal. If the alarm is not resolved, the yellow LED remains illuminated to remind
you of the fault or failure.
Note:
Some Low Priority alarms are canceled and the Alarm LED turns green when you
push the Mute button. For others, the audible alarm is canceled but the Alarm LED
stay yellow to remind you that the device is operating in a state that needs careful
monitoring.
Popup Messages
These alerts appear whenever you attempt to adjust that device in a way that is outside clinical
norms or is outside the performance range of the ventilator. Pop Up Messages also appear when
you are required to confirm their action before you proceed.For example, if you try to set the
low breath rate alarm below 4 that would, practically, disable the alarm. If the desired value is
outside the performance range, the Pop Up message alerts you to why cannot make the change.
(Example: trying to set the PEEP level greater than the PIP setting).