Muting Alarms; Alarms Types - ZOLL AEV Operator's Manual

Muting Alarms

Under most conditions, pressing the Mute button mutes the audible alarm for 30 seconds. As
describe in the previous section, pressing the Mute button when a high priority alarm is active
does not. Using the ZOLL Ventilator, muting functions as follows:
Preemptive Mute -- to prevent excessive noise in the patient care environment patient, safety
alarms, such as Patient Disconnect, PEEP Leak, and so on, can be preemptively muted for 30
seconds. This enables you to prevent the audible alarm, by pressing the Mute button, before
initiating a procedure that could trigger an alarm.
2-Minute Startup Mute -- at start up, the ventilator suspends active patient safety alarms, with
the exception of those alarms that could affect the performance of the device. This prevents
nuisance alarms during start up while you configure the ventilator. When the Start Menu is
used, the 2-minute countdown starts once you select a start option. Once the patient connected,
the mute cancels automatically after 15 seconds when there are no active alarms.
Use in High Noise Environments -- in high noise environments, you may be inclined not to
mute the alarm while addressing the problem. Not pressing Mute limits the user's ability to
resolve the alarm because with each breath the alarm is retriggered and any parameter changes
you are attempting are canceled as the alarm retriggers

Alarms Types

The ZOLL Ventilator's alarm types provide a framework for you to see the scope and range of
the alarms that the device uses. The alarm types are:
Patient Safety -- Patient Safety Alarms address the ventilation of the patient and their
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respiratory effort. Pulse oximetry monitoring and circuit/exhalation valve issues are also
part of this group.
Environment - Environment Alarms address the device inputs: external power, battery,
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high pressure O2 supply, and the fresh gas intake. Ambient and device temperature,
barometric pressure, and altitude are also part of this group.
Self Check -- Self Check Alarms address the performance of the device systems and
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include
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906-0731-01-05 Rev. C
Internal Communication (Comm): faults/failures of interdevice communication, cyclic
redundancy checking, or processor-related issues
Pneumatic Sensor: faults/failures of the pneumotachographs that measure gas flow or the
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pressure transducers
Pneumatic System: faults/failures of the compressor of O
Power System: faults/failures of the power system that render the device unable to operate
from external power or charge/operate from the internal rechargeable battery.
Pulse Oximeter (Ox) Module: faults/failures of the pulse oximeter module that are not related
to monitoring of the patient, a fault or failure of the module.
Preventive Maintenance: alarms that occur when device is due for preventive maintenance.
ZOLL Ventilator Operator's Guide
supply proportional valve.
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