
Compact Airway modules
Document No. 800 1009-1
37
Problem
Possible clinical cause
Possible technical cause Action
fluctuating Raw
•
mucus in airways or tubings
•
breathing effort against the
ventilator
•
patient triggered breaths
•
ventilator exp. valve causes
fluctuations during exp.
flow
too high Raw
•
kink in tubing
•
mucus
•
asthmatic patient
•
bronchospasm
Raw value invalid
•
spontaneous breaths
•
breathing efforts against the
ventilator
•
patient triggered breaths
too high Ppeak
•
bronchospasm
•
patient is coughing
•
patient breaths against the
ventilator
•
obstruction in airways
•
HME obstructed
static PEEPi not
measured
•
CO
2
measurement is not
connected
•
connect CO
2
meas. to D-lite
•
stat PEEPi measurement
not selected
•
exp. pause did not last at
least 4 sec.
setup
1)
Compl value invalid
•
spontaneous breaths
1)
only @ earlier revisions