Which of the following high-frequency ventilators is capable of producing the highest frequency of ventilation?
A) high-frequency oscillatory ventilation (HFOV)B) high-frequency positive pressure ventilation (HFPPV)
C) high-frequency flow interruption (HFFI)
D) high-frequency jet ventilation (HFJV)
Question 2
Heliox therapy is used for which of the following?
A) To reduce turbulence in airflow
B) To achieve peak expiratory flow ratesC) To assist in the rebound effect
D) To increase resistive pressure in the airways
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