Alarms, messages, and troubleshooting
9-9
Low Minute Ventila-
tion
Estimated minute ventila-
tion is less than the Lo
E
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
(56)
Yes Yes Yes
Low O
2
Supply Pres-
sure
O
2
inlet pressure
is less
than 30 psig and deliv-
ered O
2
is at least 5%
lower than O
2
setting. The
ventilator continues to de-
liver as much O
2
support
as possible, but it ends O
2
support when the O
2
inlet
pressure drops to less
than 18 psig. Autoresets
when O
2
inlet pressure ex-
ceeds 23 psig.
Check the patient. Attach
to oxygen source with suf-
ficient pressure.
If problem persists, pro-
vide alternative ventila-
tion. Have the ventilator
serviced.
High
(48)
No Yes Yes
Low Rate A low-priority alarm if the
measured respiratory rate
is less than the Lo Rate
setting, escalating to a
high-priority alarm in 60
sec.
A high-priority alarm from
the start if:
• The Lo Rate setting is
4 BPM and there are no
breaths for > 60/Lo Rate
setting.
• The Lo Rate setting is >
4 BPM and there are no
breaths for > 15 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
(55)
Yes Yes Yes
Low Tidal Volume Estimated tidal volume is
less than the Lo V
T
set-
ting. 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
(57)
Yes Yes Yes
Mask:x, Exh Port:y
Use Menu to change
Displays when ventilator is
turned on. Displays select-
ed mask type and exhala-
tion port.
Select mask and port from
Menu tab. Message is re-
moved when user con-
firms selections, or after 5
minutes.
Infor-
mation
(64)
No Yes N/A
Table 9-3: Alarm and other messages: summary and troubleshooting (continued)
Message Description Corrective Action
Priority
type (ID)
Manually
resettable
Autores
ettable
Silence
able
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