GE HEALTHCARE E-PSMP, Техническое руководство

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Compact Airway Modules, E-CAiOVX, E-CAiOV, E-CAiO, E-COVX, E-COV
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2062973-004
5.5.3 Gas exchange
Problem Possible clinical cause Possible technical cause What to do
“Strange” values - ventilation mode: BiPaP,
CPAP with high
continuous by-pass flow
- presence of N
2
O or
anesthetic agents in ICU
applications
- - gas exchange not
measurable
- do not use N
2
O or
AA in ICU, or use a
E-CAiOVX module
Nonphysiological VO
2
readings
- unstable O
2
delivery
- gas mixer
- RR over 35/min
- reference gas inlet port
blocked
- gas sampling line longer
than 2 m
- dead space of Y-piece > 8
ml
- gas sampling line
connected to HME
- D-lite incorrectly placed
- select oxygram
and verify the
stableness of the
curve
- check reference
port
- change 2 m
sampling line
- check the dead
space of Y-piece
- gas sampling line
should always be
connected to
D-lite
- ALWAYS connect
the D-lite between
HME and Y-piece
VO
2
value invalid,
no VO
2
FiO
2
> 85%,
(FiO
2
+FiN
2
O) > 85%
- over range
- no VO
2
value
- 0 ml/min > VO
2
> 999
ml/min
- after changing the FiO
2
setting on the ventilator,
VO
2
may be out of the
specified range for several
minutes
- VO
2
cannot be
calculated without
significant
presence of N
2