Dräger Fabius, Instructions For Use Manual, Page: 102 / 232

Operation
102
Instructions for Use Fabius MRI SW 3.n
Pressure Support Ventilation
Pressure Support ventilation is intended to reduce
the work of breathing and is indicated for use only
in patients who are breathing spontaneously.
Patients who are not making spontaneous breath-
ing efforts are not candidates for Pressure Support
ventilation.
Pressure Support ventilation is triggered by the
patient's spontaneous effort to breathe. Most anes-
thetic agents will cause patients to have reduced
ventilatory responses to carbon dioxide and to
hypoxemia. Therefore, patient triggered modes of
ventilation may not produce adequate ventilation.
Additionally, the use of neuromuscular blocking
agents will interfere with patient triggering.
Apnea Ventilation is a feature within Pressure Sup-
port ventilation. To enable Apnea Ventilation, adjust
the
Freq Min setting to a value other than OFF . If
the detected patient spontaneous breathing rate
falls below the set value, the ventilator automati-
cally delivers a Pressure Support breath.
Apnea ventilation is intended to provide some
degree of gas exchange if the patient’s respiratory
rate falls below the desired minimum setting. It is
not intended as a primary mode of ventilation.
When delivering Apnea Ventilation, the Fabius MRI
uses the Pressure Support settings for
Δ
P
PS
,
Freq Min , Insp Flow , and PEEP .
If two consecutive Apnea Ventilation breaths occur,
the Caution message »
APNEA VENTILATION!! «
appears in the Alarm window. The alarm is cleared
when a spontaneous breath is detected.