Which of the following actions will maximize the life of the oscillator mechanism on a Care-Fusion 3100A High-frequency Oscillatory Ventilator?
a. Use low-bias flow settings.
b. Minimize time and amplitude settings.
c. Maintain the piston at the center of the bar graph.
d. Keep the piston toward the maximum in-spiratory limit.
ANS: C
Keeping the piston in the center of the bar graph will prevent the piston from being driven against a mechanical stop for an extended period. Operating against a mechanical stop will wear out the oscillator mechanism quickly.
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