DESCRIPTION OF CONTROLS, INDICATORS, ALARMS & CONNECTIONS
3-10 SERHT50NA A0808
Ptrig (sensitivity)
Range: 0.0 to –9.9 cmH
2
O/mbar
The Ptrig setting determines trigger sensitivity in terms of how far
airway pressure must drop below the set baseline pressure for a
patient’s spontaneous efforts to be detected. The Ptrig LED
indicator illuminates each time the airway pressure reaches the
set Ptrig level, and turns off once the airway pressure has
returned to baseline pressure. The blinking Ptrig LED is referred
to as the Patient Effort Indicator. The Ptrig value is displayed in
the adjacent window. Set Ptrig as close to 0.0 cmH
2
O as possible
without autotriggering to maximize triggering synchrony.
PEEP/CPAP
Range: 0 to 30 cmH
2
O/mbar
The PEEP/CPAP setting establishes airway pressure in the
patient circuit during the exhalation phase. It is also referred to as
base or baseline pressure. The set PEEP/CPAP value is displayed
in the adjacent window.
NOTE: In Pressure Control ventilation, PEEP/CPAP cannot be
set higher than 5 cmH
2
O/mbar below the set Pressure Control
setting.
NOTE: The value of PEEP/CPAP plus Psupport cannot exceed
60 cmH
2
O/mbar.
Psupport
(pressure support)
Range: 0 to 60 cmH
2
O/mbar
The Psupport (pressure support) setting determines the target
rise/change in pressure during inspiration for patient triggered
spontaneous breaths in SIMV and SPONT modes. The target
pressure is the set Psupport plus the PEEP level.
Any time the active Psupport control is pressed, Psupport flow
delivery slows to a lower level then it gradually increases to the
appropriate level as pressure rise is re-assessed.
NOTE: The value of PEEP/CPAP plus Psupport cannot exceed 60
cmH
2
O/mbar.
To Next Page
Loading...
