The airway clearance technique that uses a pneumatic device to deliver compressed gas mini-bursts to the airway at rates above 100/min best describes which of the following?
a. Intrapulmonary percussive ventilation
b. Active cycle of breathing
c. High-frequency external chest wall com-pression
d. Intermittent positive-pressure breathing
ANS: D
Intrapulmonary percussive ventilation is an airway clearance technique that uses a pneumatic de-vice to deliver a series of pressurized gas minibursts at rates of 100 to 225 cycles/min (1.6 to 3.75 Hz) to the respiratory tract, usually via a mouthpiece.
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