Covidien Newport HT70, Руководство оператора

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Troubleshooting Guide
Operator's Manual 5-11
Low (Peak) Pressure alarm
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.
Circuit leak (especially while using
Volume Control). Check for and resolve leaks in circuit or exhalation valve
(similar to resolving failed exhalation valve calibration).
Flow setting is too low (i-time
setting is too high) in Volume
Control. Evaluate patient and change settings (flow, VT, flow
waveform) as appropriate.
Big airway leak while using Volume
Control. Evaluate cuff inflation/trach tube size.
Reposition mask. Make sure mask is not vented.
Use Pressure Control instead of Volume Control if
clinically appropriate.
Trigger setting too insensitive. Use Ptrig setting that is closer to zero.
High (Expiratory) Minute Volume
alarm
This alarm is only active when
the on-airway flow sensor is in
place
Patient is breathing faster than
usual. Check patient for anxiety, pain, discomfort, or change in
illness.
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 Min Vol alarm has not been
set properly for use with on-airway
flow sensor. Set alarm appropriately.
Pneumatic nebulizer inline. Contact Covidien Technical Services for assistance.
Reference
Contact Information on page 1-9 .
Supplemental oxygen flowing
directly into breathing circuit. Use the low flow oxygen reservoir or 50 psi air oxygen
mixer.
On-airway flow sensor is not clean. Replace sensor.
Low (Expiratory) Minute Volume
alarm
This alarm is only active when
the on-airway flow sensor is in
place
Circuit or airway leak (not
intentional). Check for and resolve circuit leaks (similar to resolving
failed exhalation valve calibration).
Evaluate cuff inflation/trach tube size, increase as
needed.
If problem occurs only at night, make sure alarm settings
are appropriate for day and night conditions.
Reposition mask. Make sure mask is not vented.
Intentional leak for speech. If a speaking valve is in use, this alarm will need to be
disabled. Make sure appropriate monitoring is in place
to maintain patient safety.
Patient is breathing slower than
usual. Check patient and resolve problems.
Low Min Vol alarm has not been set
properly for use with on-airway
flow sensor. Set alarm appropriately.
Connected to a test lung with a
resistor. The resistor may be causing flow eddies that make the
flow sensor measurement inaccurate. Try a test lung
with less resistance.
Table 5-2. Troubleshooting (Continued)
Problem/area of concern Probable cause Resolution