Author Question: What happens during the exsufflation phase of mechanical insufflation-exsufflation? 1. Airway ... (Read 53 times)

bobypop · **on:** Jul 16, 2018

What happens during the exsufflation phase of mechanical insufflation-exsufflation?

1. Airway pressure is abruptly decreased to 30 to 50 cm H2O.
2. Negative airway pressure is maintained for 2 to 3 sec.
3. Peak expiratory cough flows reach near normal values.
a. 1 and 2 only
b. 2 and 3 only
c. 1 and 3 only
d. 1, 2, and 3

Question 2

What is the correct sequence of actions during the active cycle of breathing (ACB) method? 1. Relaxation and breathing control 2. Three or four thoracic expansion exercises 3. One or two FETs (huffs)

a. 1, 2, 1, and 3
b. 1, 3, 1, and 2
c. 3, 1, 2, and 1
d. 1, 3, 2, and 1

bigsis44 · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: D
The airway pressure is then abruptly reversed to 30 to 50 cm H2O and maintained for 2 to 3 sec. Peak expiratory cough flows obtained with this device are in the normal range (mean of 7.5 L/sec), far better than that can be achieved with manually assisted coughing.

Answer to Question 2

ANS: A