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5.2.2. CPAP (Continuous Positive Airway Pressure)
In CPAP mode, the ventilator will deliver a continuous flow rate
to generate airway pressure and use the control valve to maintain
CPAP levels (Figure 11).
Note: The default trigger in CPAP mode is pressure trigger (P)
which is set at 2 cm H
In this option the ventilator adjusts the amount of flow internally to
maintain average airway pressure close to CPAP setting.
The CPAP mode is equipped with APNEA back up ventilation in
which the ventilator switches to SIMV when the ventilator does
not trigger patient's spontaneous breathing for a period of time (T
APNEA) set by the user. The parameters of back up SIMV ventilation
are settable by user.
The trigger changes from pressure trigger (P) to 3 L/min default
flow trigger when the ventilator switches to APNEA back up.
TABLE 3 - Default Ventilation Setting- CPAP
PARAMETER
CPAP (cm H
O)
2
P max.
P min.
O
%
2
T APNEA (sec)
Vt/f (A)
(ml/BPM)
e500 User Manual
O below CPAP settings.
2
RANGE
4, 5, 6, 7, 8, 9, 10, 12, 15, 18, 20
10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 80
0, 2, 3, 4, 5, 6, 7, 8, 10, 12, 15, 20
(100% or 60%)
10, 15, 20, 25, 30, 40, 45, 50, 55, 60
100/20,150/20, 200/20, 250/20, 300/10,
350/10,400/10, 450/10, 500/10, 600/10,
650/10
DEFAULT
Carry over from PEEP
of previous mode
Carry over from
previous mode
Carry over from
previous mode
Carry over from
previous mode
20
Carry over from
previous mode
33
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