Intrapulmonary percussive ventilation mobilizes airway secretions by which of the following methods?
a. Generating a subatmospheric pressure on inspiration, then an expiratory resistance
b. Applying a positive pressure to a patient's airways throughout the respiratory cycle
c. Delivering high-frequency percussive breaths into the patient's airways
d. Applying an expiratory resistance to ex-haled flow from the patient
ANS: C
The Percussionaire Intrapulmonary percussive ventilation provides a form of oscillator therapy that delivers high-frequency percussive breaths into the patient's airways. It is used as an adjunct for mobilizing airway secretions.
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