EvitaXL

Diagnostic functions
Intrinsic PEEP – PEEPi
Intrinsic PEEP – PEEPi
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 measurement 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.
● Touch the function key »Special Procedure...«.
EvitaXL displays the menu
»Additional Function«.
● Touch the screen key »Diagnostics«.
● Touch the screen key »PEEPi«.
EvitaXL displays the last measured
PEEPi value in larger characters with
time/date in the left-hand column. The
value for the previous measurement is in
the right-hand column.
The set PEEP is shown with the measured
values.
To start PEEPi:
● Touch the screen key »Start«, the key
turns yellow.
● Confirm = press rotary knob, the
screen key turns green and EvitaXL
starts measurement of the PEEPi
value.
To view additional text information:
● Touch the screen key »? q «.
To quit the menu:
● Touch the screen key »x«.
* For a detailed description of
Intrinsic PEEP, see page 226.
100 Instructions for Use EvitaXL
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