5-20 624074/07
5 Ventilator settings
Flow pattern Flow pattern for gas delivery.
This is not affected by patient pressure
or other limitations as long as the peak
inspiratory flow or pressure limit is not
exceeded.
Applies to volume-controlled manda-
tory breaths.
Sine, square,
100% deceler-
ating, 50%
decelerating
Flowtrigger
(l/min)
The patient’s inspiratory flow triggers
the ventilator to deliver a breath. When
the Flowtrigger is selected, the device
generates a continuous and constant
base flow from the inspiratory outlet to
the expiratory outlet during the later
part of exhalation. Base flow is essen-
tial for flow trigger. This base flow
ranges from 4 to 30 l/min, as follows:
• For Flowtrigger values < 1 l/min:
2 l/min
• For Flowtrigger values > 2 l/min:
2 x Flowtrigger setting
Applies to all breaths in all modes,
if selected.
NOTE:
If autotriggering occurs, first
check the patient, breathing cir-
cuit, and other settings as possi-
ble causes before decreasing
the trigger sensitivity.
0.1 to 15 l/min
Gender
(Adults only!)
Sex of patient.
Used to compute ideal body weight
(IBW).
Male, Female
Table 5-2. Control settings, mode additions, and ranges
Parameter Definition Range
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