Author Question: In administering intermittent positive-pressure breathing therapy, which of the following breath-ing ... (Read 84 times)

Jipu 123 · **on:** Jul 16, 2018

In administering intermittent positive-pressure breathing therapy, which of the following breath-ing patterns would be most desirable?

a. 6 to 8 breaths/min, inspiration/expiration ratio (I:E) of 1:3
b. 8 to 10 breaths/min, I:E of 1:1
c. 12 to 15 breaths/min, I:E of 1:2
d. 6 to 8 breaths/min, I:E of 1:1

Question 2

Which of the following are appropriate volume goals for intermittent positive-pressure breathing (IPPB) therapy?

1. 10 to 15 ml/kg ideal body weight
2. At least 30 of the inspiratory capacity (IC)
3. Pressure level as high as 30 to 35 cm H2O
a. 1 and 3 only
b. 1 and 2 only
c. 2 and 3 only
d. 1 only

anyusername12131 · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: A
Generally, the goal is to establish a breathing pattern consisting of approximately 6 breaths/min, with an expiratory time of at least 3 to 4 times longer than inspiration (I:E ratio of 1:3 to 1:4 or lower).

Answer to Question 2

ANS: B
Most clinical centers strive to achieve an IPPB tidal volume of 10 to 15 ml/kg of body weight or at least 30 of the patient's predicted IC. If the initial volumes fall short of this goal and the pa-tient can tolerate it, the pressure is gradually raised until the goal is achieved. Pressures as high as 30 to 35 cm H2O may be needed to achieve this end when lung compliance is reduced.