CareFusion AVEA Operating Instructions Manual page 128

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3. Once placed using the above criteria appropriate balloon location can be confirmed by performing an
occlusion technique. This requires that the airway be occluded and the esophageal and airway pressures
compared for similarity.
After the balloon has been inserted and turned on, the ventilator will fill the balloon to the appropriate level and begin
monitoring data. The ventilator will automatically evacuate and refill the balloon every thirty minutes to ensure accuracy
of monitored values.
WARNING
Esophageal balloon placement should only be conducted in patients under the direction of a physician who
has assessed the patients for contraindications to the use of esophageal balloons.
WARNING
Incorrect placement of an esophageal balloon can affect the accuracy of monitored values.
Chapter 4: Monitors, Displays and Maneuvers Operator's manual
L2786 Rev. M