Operating the Ventilator
5-12
Operator's Manual
High (Inspiratory) Minute
Volume alarm
On-airway flow sensor is not in
place
Note
: Situations that violate the
Low Pressure alarm in Volume
Control may violate the High
Inspiratory Minute Volume alarm
or Low Expiratory Minute
Volume alarm in Pressure
Control. Seek similar remedies.
Large airway or circuit leak
(Pressure Control or Pressure
Support).
Check for and resolve leaks (similar to resolving failed
exhalation valve calibration).
Reposition mask. Make sure mask is not vented.
Evaluate cuff inflation/trach tube size.
If problem occurs only at night, make sure alarm settings
are compatible with day and night conditions.
Patient is breathing faster than
usual.
Check patient for anxiety, pain, discomfort, or change in
illness.
Circuit just reconnected after
disconnect.
Press
Audio Paused/Reset
; the alarm will resolve by itself.
Auto-triggering due to airway leak.
Turn on NIV and increase Bias Flow setting. Balance
Trigger and Bias Flow settings to provide the most
effective triggering and comfort.
High Min Vol alarm has not been
set properly for use without on-
airway flow sensor.
Set alarm appropriately or reconnect on-airway flow
sensor.
Low (Inspiratory) Minute Volume
On-airway flow sensor is not in
place
This will trigger Backup
Ventilation if the Backup
ventilation link is set to LMV or
Both.
Need suctioning/airway care when
using Pressure Control or Pressure
Support.
Suction/perform airway care.
Upper airway occlusion during
mask ventilation.
Reposition head/neck.
Supplemental oxygen flowing
directly into breathing circuit.
Use the low flow reservoir or 50 psi air oxygen mixer
instead of adding oxygen directly into the circuit.
Ventilator is not triggering with
each breathing effort.
Use Ptrig setting that is closer to zero or add flow sensor
and use flow trigger.
Patient is breathing slower than
usual.
Replace HME if one is in use. Assess the patient and
ventilator settings.
Low Min Vol alarm has not been set
properly for use without on-airway
flow sensor.
Set alarm appropriately or reconnect on-airway flow
sensor.
High VTE alarm
High Expiratory Tidal Volume
alarm
This alarm is only active when
the on-airway flow sensor is in
place
A change in ventilator settings or
patient condition has caused
delivery of a higher patient tidal
volume.
Check the patient. If appropriate, lower the Pressure
Control/Pressure Support setting until the exhaled
volume is suitable for the patient.
High VTE alarm has not been set
properly for use with the on-airway
flow sensor.
Set alarm appropriately.
On-airway flow sensor is not clean.
Replace sensor.
Table 5-2.
Troubleshooting (Continued)
Problem/area of concern
Probable cause
Resolution
Summary of Contents for Newport HT70
Page 1: ...Operator s Manual Newport HT70 Ventilator with Accessories Plus Model TM...
Page 8: ...Page Left Intentionally Blank viii Operator s Manual...
Page 12: ...Page Left Intentionally Blank xii Operator s Manual...
Page 24: ...Introduction Page Left Intentionally Blank 1 12 Operator s Manual...
Page 72: ...Navigating the Screens Page Left Intentionally Blank 4 24 Operator s Manual...
Page 88: ...Operating the Ventilator Page Left Intentionally Blank 5 16 Operator s Manual...
Page 100: ...Ventilator Alarms Page Left Intentionally Blank 6 12 Operator s Manual...
Page 108: ...Battery Operation Page Left Intentionally Blank 7 8 Operator s Manual...
Page 138: ...Explanation of Modes and Controls Page Left Intentionally Blank 10 6 Operator s Manual...
Page 140: ...Quick Check Procedure Check Off Page Left Intentionally Blank A 2 Operator s Manual...
Page 142: ...Foldout Drawings B 2 Page left intentionally blank...
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