Chapter 40 Airway Clearance Therapy

Chapter 40  Airway Clearance Therapy

Complete Chapter Questions And Answers
 

Sample Questions

MULTIPLE CHOICE

1. A normal cough reflex includes which of the following phases?
1. irritation
2. inspiration
3. compression
4. expulsion
a.
1, 2, 3
b.
1 and 4
c.
1, 2, 3, and 4
d.
2 and 3

ANS: C
As shown in Figure 40-1, there are four distinct phases to a normal cough: irritation, inspiration, compression, and expulsion.

DIF: Recall REF: p. 963 OBJ: 1

2. Which of the following is/are necessary for normal airway clearance?
1. patent airway
2. functional mucociliary escalator
3. effective cough
a.
1 and 2
b.
1, 2, 3
c.
2 and 3
d.
2

ANS: B
Normal airway clearance requires a patent airway, a functional mucociliary escalator, and an effective cough

DIF: Recall REF: p. 963 OBJ: 1

3. Which of the following can provoke a cough?
1. anesthesia
2. foreign bodies
3. infection
4. irritating gases
a.
2 and 4
b.
1, 2, and 3
c.
3 and 4
d.
2, 3, and 4

ANS: D
Infection is a good example of cough stimulation due to an inflammatory process. Foreign bodies can provoke a cough through mechanical stimulation. Chemical stimulation can occur when irritating gases are inhaled (e.g., cigarette smoke). Finally, cold air may cause thermal stimulation of sensory nerves and produce a cough.

DIF: Recall REF: p. 964 OBJ: 1

4. Which of the following occur(s) during the compression phase of a cough?
1. expiratory muscle contraction
2. opening of the glottis
3. rapid drop in alveolar pressure
a.
1 and 2
b.
2 and 3
c.
1 and 3
d.
1

ANS: D
During the third or compression phase, reflex nerve impulses cause glottic closure and a forceful contraction of the expiratory muscles.

DIF: Recall REF: p. 964 OBJ: 1

5. Retention of secretions can result in full or partial airway obstruction. Mucus plugging can result in which of the following?
1. hypoxemia
2. atelectasis
3. Shunting
a.
1, 2, and 3
b.
1 and 2
c.
1 and 3
d.
2 and 3

ANS: A
Full obstruction, or mucus plugging, can result in atelectasis and impaired oxygenation due to shunting.

DIF: Recall REF: p. 964 OBJ: 1