GE iVent 201 1.4, User'S Reference Manual

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proper I:E ratio for this patient. It may be necessary to increase the time interval
between breaths in order to allow for more emptying.
PERFORMING AND END EXPIRATORY HOLD
MANEUVER
To initiate an end expiratory hold maneuver, press the Hold button on the front
panel twice in succession. After the next breath the expiratory phase is prolonged
and an intrinsic (Auto) PEEP measurement made. If the Hold button is pressed
again or Clear is pressed at any point in the breath or while the hold maneuver is
taking place, the end-expiratory hold is suspended (Figure 175).
Note that if the patient is conscious and breathing rapidly, it may not be possible
to perform an end-expiratory hold maneuver. If the ventilator senses a negative
pressure excursion during the end-expiratory hold maneuver that exceeds the
current pressure trigger setting, it suspends the end-expiratory hold maneuver
and delivers a breath.
REVIEWING STATIC MECHANICS AND INTRINSIC
PEEP MEASUREMENTS
To view the results of the static mechanics measurements, including static
compliance, expiratory time constant and intrinsic PEEP measurements you need
to navigate to the
Show Mechanics (Figure 176) menu from the Main menu.
Figure 176: Static Mechanics Measurements