quiz 2-physiology of the airway

Question 1

In patients with chronic lung disease, the primary stimulus to breathe is:

Select one:

a. increased pH.
b. increased carbon dioxide.
c. decreased oxygen.
d. none of the above.

Answer 1

c. decreased oxygen.

Question 2

The narrowest part of the airway in children is
the ______ cartilage

Select one:

a. thyroid
b. cricoid
c. hyoid
d. ethmoid

Answer 2

b. cricoid

Question 3

The bag-valve device has an adjunct oxygen reservoir or corrugated tubing that can deliver ______ oxygen.

Select one:

a. 60–70 percent
b. 70–75 percent
c. 80–90 percent
d. 90–95 percent

Answer 3

d. 90-95%

Question 4

Which of the following represents the correct order of the airway structures from the mouth to the lungs?

Select one:

a. Trachea, bronchi, larynx, pharynx
b. Pharynx, larynx, trachea, bronchi
c. Bronchi, trachea, pharynx, larynx
d. Larynx, pharynx, trachea, bronchi

Answer 4

b. Pharynx, larynx, trachea, bronchi

Question 5

The lung tissue receives most of its blood supply from:

Select one:
a. bronchial arteries 
b. pulmonary arteries
c. bronchial veins.
d.
pulmonary veins.

Answer 5

a. bronchial arteries

Question 6

The trachea is maintained in an open position
by:

Select one:

a. the Adam’s apple.
b. the carina.
c. surfactant.
d. cartilaginous C-rings

Answer 6

d. cartilaginous c-rings

Question 7

The potentially most ominous finding of
auscultation is:

Select one:

a. snoring.
b. gurgling.
c. wheezing.
d. quiet.

Answer 7

d. quiet.

Question 8

Stimulation of laryngeal mucous membrane can cause all of the following EXCEPT:

Select one:

a. bradycardia.
b. hypotension.
c. cough.
d. decreased respiratory rate.

Answer 8

c. cough.

Question 9

During inspiration, the lungs become distended,
activating the:

Select one:

a. stretch receptors
b. chemoreceptors.
c. beta receptors.
d. alpha receptors.

Answer 9

a. stretch receptors

Question 10

SpO2 measures the level of which gas?

Select one:

a. CO2
b. CO
c. O2
d. Nitrogen

Answer 10

c. O2

Question 11

The average volume of gas inhaled in one respiratory cycle is called the:

Select one:

a. tidal volume
b. alveolar volume
c. Minute volume.
d. functional reserve capacity

Answer 11

a. tidal volume

Question 12

Increases in carbon dioxide production can be caused by:

Select one:

a. fever.
b. muscle exertion/shivering.
c. metabolic processes (diabetic ketoacidosis).
d. all of the above.

Answer 12

d. all of the above

Question 13

In normal respiration, the size of the thoracic cavity can be increased by contracting the diaphragm and the:

Select one:

a. strap muscles
b. abdominal muscles
c. deltoid muscles.
d. intercostal muscles

Answer 13

d. intercostal muscles

Question 14

Which of the following would cause an increased level of exhaled CO2?

Select one:

a. Hyperthermia
b. Pulmonary embolism
c. Cardiac arrest
d. Bronchospasm

Answer 14

a. hyperthermia

Question 15

All of the following can cause an error signal or blank screen on an SpO2 monitor EXCEPT:

Select one:

a. nail polish.
b. asthma.
c. carbon monoxide poisoning
d. cold hands.

Answer 15

b. asthma.

Question 16

Both the PtL and the ETC airways:

Select one:
a. can be inserted into either the esophagus or the
trachea
b. can be used in patients under 16 years of age.
c. can be used in patients with a gag reflex.
d. all of the above

Answer 16

a. can be inserted into either the esophagus or the trachea

Question 17

The lungs are covered by

Select one:

a. the visceral pleura.
b. the parenchyma
c. the parietal pleura.
d. none of the above.

Answer 17

a. the visceral pleura.