262

PRACTICING FOR NCLEX

MULTIPLE CHOICE QUESTIONS

Circle the letter that corresponds to the best

answer for each question.

1.Which of the following is the primary

purpose of surfactant?

a.To propel sheets of mucus toward the

upper airway

b.To warm inspired air

c.To produce watery mucus

d.To reduce surface tension of the fluid lin-

ing the alveoli

2.The small air sacs at the end of the terminal

bronchioles that are the sites of gas exchange

are known as which of the following?

a.Alveoli

b.Pleurae

c.Lobules

d.Bronchioles

3.A patient who has difficulty breathing,

increased respiratory and pulse rates, and

pale skin with regions of cyanosis may be

suffering from which of the following?

a.Hyperventilation

b.Hypoxia

c.Perfusion

d.Atelectasis

4.When inspecting a patient’s chest to assess

respiratory status, the nurse should be

aware of which of the following normal

findings?

a.The contour of the intercostal spaces

should be rounded.

b.The skin at the thorax should be cool and

moist.

c.The anteroposterior diameter should be

greater than the transverse diameter.

d.The chest should be slightly convex with

no sternal depression.

5.When percussing a normal lung, which of

the following sounds should be heard?

a.Tympany

b.Resonance

c.Dullness

d.Hyperresonance

6.Which of the following normal breath

sounds should be heard over the trachea?

a.Vesicular

b.Bronchovesicular

c.Bronchial

d.Tympanic

7.A patient who develops air in the pleural

space is experiencing which of the following

conditions?

a.Pleural effusion

b.Hemothorax

c.Pneumothorax

d.Pleura thorax

Oxygenation

CHAPTER^39

LWBK696-C39_p262-271.qxd 9/3/10 12:35 PM Page 262 Aptara Inc