GE iVent 201 Series User's Reference Manual page 173

Warning Mode of Failure Priority Probable Cause Criterion for
Set Count or
Time of
Condition
High Pressure Airway pressure
reaches the High
2 breath delay
Pressure alarm
threshold
High SpO2 SpO2 level
exceeds the
2 Breaths
upper SpO2 limit
delay
Inverse I:E The I:E ratio has
Ratio changed to an
inverse ratio
(for Volume
Control modes
only)
20 mandatory
breaths delay
Low Battery Internal battery is
running low
Approx. 20
min of
operating time
left
Low Breath
Breath rate is
Rate
lower than low
alarm setting
3 breath delay
(5 with
settings
change)
Clinical condition
High
No
synchronization
between the
ventilator
operation and
patient breaths
Incorrect alarm
settings
Delivery tubes
occluded or
partially occluded
Medium The patient
clinical condition,
FiO level set too
2
high, or the SpO2
settings are too
low
Low Improper setting
of Tidal Volume,
Breath Rate, P-
limit, Peak Flow,
Trigger settings
and/or
Inspiratory Time
High Operating
without external
power supply –
time dependent
on parameter
settings
High Clinical condition
Trigger sensitivity
set too high
Alarm set too
high
161
Corrective Action
Clearing Alarm
Pressure is Subject to clinical
lower than judgment, correct
alarm threshold setting as
for 3 breaths necessary
The SpO2 level Assessing the
is lower than patient clinical
the alarm limit condition,
for 1 breath decreasing the
FiO level, or
2
increasing the
SpO2 alarm
settings.
Inverse I:E ratio Correct setting(s)
corrected for 5
breaths
Charging is Connect unit to
detected external power
source (AC or DC)
Recharge battery
Rate is higher Assess patient
than alarm set
Decrease alarm
for more than 2
setting if
breaths
appropriate
Increase trigger
sensitivity
6 Alarms