What is the movement of small volumes of air back and forth in the respiratory tract at high ...

What is the movement of small volumes of air back and forth in the respiratory tract at high fre-quencies (12 to 25 Hz) called?
 
  a. Tidal breathing
  b. Active cycle breathing
  c. Oscillation
  d. Huffing

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Q. 2  Which of the following parts are required to conduct high-frequency external chest wall com-pression?
 
  1. Variable air-pulse generator
  2. Expiratory flow resistor with one-way valve
  3. Nonstretch inflatable thoracic vest
  a. 1 and 2 only
  b. 2 and 3 only
  c. 1 and 3 only
  d. 1, 2, and 3

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Q. 3  Which of the following are typical of high-frequency external chest wall compression therapy? 1. 30-min therapy sessions 2. Long inspiratory oscillations 3. One to six sessions per day 4. Oscillations at 20 to 25 Hz
 
  a. 1 and 3 only
  b. 1, 2, and 3 only
  c. 3 and 4 only
  d. 2, 3, and 4 only

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Q. 4  Which of the following determines effectiveness of high-frequency external chest wall compres-sion therapy? 1. Compression frequency 2. Largest volumes 3. Flow bias
 
  a. 1 only
  b. 2 only
  c. 1 and 3 only
  d. 2 and 3 only

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Q. 5  What duration of time and pressure is recommended when using MIE devices to clear airways secretions in adults?
 
  a. 30 to 50 cm H2O at 1 to 3 sec
  b. 10 to 30 cm H2O at 1 to 3 sec
  c. 30 to 50 cm H2O at 5 to 10 sec
  d. 10 to 30 cm H2O at 5 to 10 sec