Covidien Newport HT70, Operator'S Manual

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Troubleshooting Guide
Operator's Manual 5-13
BUV (Backup Ventilation)
Backup Ventilation is delivered in
response to Low Min Vol alarm or
Apnea alarm (set in More>
Utility>Custom Settings> BUV
screen)
Same causes as Low Min Vol or
Apnea alarm.
Resolved when inspiratory minute
volume rises to 10% above the Low
Min Vol alarm setting or Apnea
alarm is resolved.
Resolve Low Min Vol alarm or Apnea alarm.
Note: Backup Ventilation is suspended for 1 minute
when turning on the ventilator and after any ventilation
setting is adjusted or screens changed.
High Baseline Pressure alarm Circuit check was not done when
circuit was installed. Do a circuit check every time a fresh circuit/exhalation
valve is installed.
Increased resistance to exhalation. Evaluate everything in the patient’s pathway of
exhalation to determine what is causing resistance and
resolve the issue.
Change HME, expiratory filter, or both, if used.
Change the exhalation valve.
Unkink expiratory drive line.
Replace flow sensor with a clean one.
Exhalation drive tubing is kinked. Unkink the tubing.
Auto-triggering due to leaks (if
PEEP is set >0). Check for and resolve leaks. Activate NIV and adjust bias
flow on the More screen.
Auto-triggering due to flow or
pressure trigger settings being too
low. Readjust trigger settings to eliminate auto-triggering
(higher number is less sensitive).
Pressure Support breaths are not
ending when patient exhales. Increase expiratory threshold, decrease PS max i-time
(More screen), or do both.
Too little time allowed for
exhalation. As appropriate, shorten i-time, change flow waveform,
decrease respiratory rate.
Pressure Control Setting Not
Reached alarm Big leak/disconnect. Check for and resolve leaks or disconnect.
No external power
Power Switchover alarm
Ventilator will use its internal
battery system
Unless external power was
disconnected on purpose, ALL
resolutions MUST include
making sure that the green
external power LED lights up.
Ventilator does not detect external
power. If intentionally unplugged, press Audio Paused/Reset to
clear the message.
If unintentional, plug the ventilator into external power.
Power source is switched off. Switch power source on.
Power cord is not fully inserted/
inserted backwards. Fully insert power cord in the proper orientation (angled
to the right). Refer to illustrated label on Power Pac.
Power source is depleted. Connect to another power source.
If power was not purposely disconnected and none of
these actions resolves the issue, call for service
immediately.
Running on Backup Battery
alarm
Power
P
ac is nearing depletion
and ventilator has switched to
the emergency backup battery
Minimum of 30 minutes internal
battery system use time left. Connect to external AC or DC power, and make sure that
the green external power LED lights up. Do not leave the
ventilator until you see the green light.
Table 5-2. Troubleshooting (Continued)
Problem/area of concern Probable cause Resolution