Page 169 of 292
Interactive and limiting controls in PSV.
The user needs to be aware that the following controls interact.
The PEEP control interacts with the PIP control. When increasing the PEEP,
the PIP will track accordingly if initially below the starting PEEP level.
The PIP control is limited by the PEEP. The user cannot decrease the PIP level
below the PEEP level. The PEEP parameter control displays a warning stating
the limiting pressure.
TTV (Volume targeting) of all triggered and mechanical breaths in PSV.
When the user selects TTV the PIP control becomes the MAX PIP control. The
Max PIP control allows the user to set the maximum pressure at which a volume
limited backup breath is delivered. In TTV the volume that the machine delivers is
the limiting factor.
On discontinuing TTV the ventilator defaults to a safe PIP level of 5 mbar
above the set PEEP level, irrespective of what the user has set. The User
will then have to reset the PIP to the required level.
Step 8. Set the Breath Detection threshold for Apnoea settings. The threshold is found
in the flow waveform window. (This waveform will not appear when operating
without a flow sensor).
Step 9. If required, set the minute volume alarms. The alarm thresholds are found by
selecting the minute volume graph . Once set the user can revert to the
default waveform display.
Note: The user cannot set the high and low minute volume alarms when the
flow sensor is not connected.
Breath
Detection
To Next Page
Loading...
