9-8
Alarms, messages, and troubleshooting
Cannot Reach Target
Flow
Displays when HFT (high
flow therapy) is active. In-
dicates that flow target is
not achieved.
Check the patient. Check
that the high flow nasal
cannula size is appropri-
ate for the flow setting.
Check that an occlusive
interface is NOT in use (a
cannula fully sealed with-
in the nares, an NIV mask
or direct connection to an
ETT/trach). Check for an
occlusion, kink or liquid in
the patient circuit.
Low
(53)
No Yes Yes
Check Vent:
description of failure
See Table 9-4 on page 9-13
High Inspiratory Pres-
sure
Measured inspiratory pres-
sure is greater than the
HIP setting, and the venti-
lator cycles into exhala-
tion. Autoresets after a
complete inspiration with-
out the alarm condition.
Check the patient. Con-
firm ventilator and alarm
settings are appropriate. If
problem persists, provide
alternative ventilation.
Have the ventilator ser-
viced.
High
(45)
Yes Yes Yes
High O
2
Supply Pres-
sure
O
2
inlet pressure is great-
er than 92 psig, so O
2
en-
richment ends. Autoresets
when O
2
supply pressure
falls below 87 psig.
Check the patient. If prob-
lem persists, provide alter-
native ventilation. Have
the ventilator serviced.
High
(49)
No Yes Yes
High Rate Measured respiratory rate
is greater than the Hi Rate
setting. Escalates to a
high-priority alarm if the
alarm condition persists
for more than 60 sec.
Check the patient. Con-
firm ventilator and alarm
settings are appropriate. If
problem persists, provide
alternative ventilation.
Have the ventilator ser-
viced.
Low/
High
(59)
Yes Yes Yes
High Tidal Volume Measured estimated tidal
volume is greater than the
Hi V
T
setting. Escalates to
a high-priority alarm if the
alarm condition persists
for more than 60 sec.
Check the patient. Check
for large leaks. Confirm
ventilator and alarm set-
tings are appropriate. If
problem persists, provide
alternative ventilation.
Have the ventilator ser-
viced.
Low/
High
(58)
Yes Yes Yes
Low Inspiratory Pres-
sure
Measured inspiratory pres-
sure is less than the LIP
setting.
Check the patient. Con-
firm ventilator and alarm
settings are appropriate. If
problem persists, provide
alternative ventilation.
Have the ventilator ser-
viced.
High
(46)
Yes Yes Yes
Table 9-3: Alarm and other messages: summary and troubleshooting (continued)
Message Description Corrective Action
Priority
type (ID)
Manually
resettable
Autores
ettable
Silence
able
To Next Page