Table of Contents
Advertisement
Special measuring procedure: Intrinsic PEEP
Intrinsic PEEP* is the actual end-expiratory pressure in
the lung.
Due to the dynamics of lung mechanics (resistance,
compliance and closing volume) and the ventilation
setting parameters, the intrinsic PEEP differs from the
PEEP in the upper airways.
The Intrinsic PEEP measuring procedure also measures
the trapped volume resulting from the different PEEP
values, i.e. the amount of air trapped in the lungs and not
taking part in the gas exchange process.
This special procedure can be performed in all ventilation
modes.
Activity by the patient during this procedure can
distort the measured values.
Select the Intrinsic PEEP special procedure:
Press the »Special proc.« key and touch the »PEEPi«
screen key.
Display (example):
The measured values and the time of the last measure-
ment are displayed on the screen.
To start the Intrinsic PEEP measurement:
Touch the »Start« screen key.
The Intrinsic PEEP measurement runs automatically.
At the end of the procedure, the new measured values
PEEPi and Vtrap are displayed.
The displayed curve is automatically stopped.
To evaluate the measured value at a particular time:
Position the l cursor on the time by turning the dial-
knob.
The associated measured value is displayed above the
curve.
_____________
* For a detailed description of Intrinsic PEEP, refer to the Annex,
page 176.
Operation
Special Functions
93
Advertisement
Table of Contents
