5.13 Ventilatory parameters - overview
When a ventilation mode is selected, the only parameters shown are those affecting the actual
mode. Below are all the mode-related parameters presented.
SVX-202_EN
1. Respiratory rate (RR) Rate of controlled
mandatory breaths or used for calculation
of target volume (b/min).
2. Tidal volume (VT) Volume per breath or
target volume (ml).
Minute volume (MV) Volume per minute
or target Minute volume (ml/min or l/min).
Presentation can be configured to either
tidal or minute volume.
3. PC above PEEP Inspiratory pressure level
for each breath (cmH
2
O) in Pressure
Control.
4. PS above PEEP Inspiratory pressure
support level for triggered breaths
(cmH
2
O) in Pressure Support.
5. Inspiratory rise time (T insp. rise) Time to
full inspiratory flow or pressure at the start
of each breath, as a percentage of the
breath cycle time (%), or in seconds (s).
6. I:E ratio (I:E) (Inspiration time + Pause
time): Expiration time.
7. Inspiration time (Ti) Time for active flow or
pressure delivery to the patient (s).
8. Pause time (Tpause) Time for no flow or
pressure delivery (% or s).
9. Trigger sensitivity
a. Below zero: Trigger sensitivity is
pressure dependant. The pressure
below PEEP which the patient must
create to initiate an inspiration (cmH
2
O)
is indicated.
b. Above zero: Trigger sensitivity is flow
dependent. As the dial is advanced to
the right (step wise from the green into
the red area) the trigger sensitivity
increases i.e the inhaled fraction of the
bias flow leading to triggering is
reduced.
10. PEEP Positive End Expiratory Pressure
(cmH
2
O).
11. End inspiration fraction of maximum flow
at which inspiration should switch to
expiration (%).
SERVO-s VENTILATOR SYSTEM V8.0, User's Manual
97
| Ventilation, modes and functions |
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