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NR 283 EXAM 10 QUESTIONS WITH
CORRECT ANSWERS
Gas Exchange
Which of the following can cause alterations in gas exchange? Select all that
apply.
A. Blockage in the blood traveling away from the lung
B. Inability of the carbon dioxide to detach from the hemoglobin and enter the
cells of the body
C. Inability for air to be exhaled from the lung
D. Inability for carbon dioxide to diffuse across capillaries and into the alveoli
E. Inability for oxygen to diffuse across the capillaries and into the red blood
cell
F. Blockage of air traveling into the lung
A, C, D, E, & F
Which of the following can cause alterations in gas exchange? Select all that
apply.
A. Confusion
B. Low oxygen saturation
C. Loss of consciousness
D. Improved cognitive function
E. Red discoloration of the skin
A, B, & C
Which actions will help prevent gas exchange problems in the future? Select
all that apply.
A. Avoiding high levels of outdoor air pollution
B. Smoking cessation
, Page 2 of 17
C. Using an air purifier indoors
D. Learning to swim
E. Getting vaccinated against COVID-19
All of them
Does gas exchange occur in this part of the lungs?
Trachea
Diaphragm
Alveoli
Bronchioles
Trachea--gas exchange does not occur
Diaphragm--gas exchange does not occur
Alveoli--gas exchange occurs
Bronchioles--gas exchange does not occur
Which best describes the way oxygen and carbon dioxide move between the
alveoli and capillaries?
Gases move from a high pressure and concentration to a low pressure and
concentration.
What do we already know about oxygen? Select all that apply.
A. Oxygen is vital for cellular metabolism.
B. Oxygen is exchanged for carbon dioxide in the lung alveoli.
C. Hemoglobin is the transport vehicle for oxygen.
D. Each hemoglobin molecule is limited by the amount of oxygen it can carry.
E. Oxygen pressure is not used in the transfer of gases.
F. Higher altitudes make oxygen exchange easier.
A, B, C, & D
Cause of impaired gas exchange. Ventilation problem or Perfusion problem?
Tongue blocking airway
Blood loss
Muscle weakness
Carbon monoxide poisoning
No air
Sickle cell disease
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Ventilation Problem
-Tongue blocking airway
-Muscle weakness
-No air
Perfusion problem
-Carbon monoxide poisoning
-Blood loss
-Sickle cell disease
When gas exchange is impaired, the body compensates.
(Increased/Decreased) oxygen levels in the arterial blood signal the body to
(increase/decrease) respirations, blood pressure, and heart rate so quicker gas
exchange can occur.
Decreased....increased
Which actions will help prevent gas exchange problems in the future? Select
all that apply.
A. Reading the warnings and following them when using bleach
B. Going out on days when there is a pollution advisory
C. Smoking a cigar to celebrate an achievement
D. Walking a mile at a fast pace
E. Getting an influenza shot yearly
A, D, & E
Which of the following suggests a gas exchange problem? Select all that
apply.
A. Chest pain
B. Shortness of breath
C. Cough
D. Elevated oxygen saturation
E. Smoker
A, B, C, & E
Which are homeostatic mechanisms used by the body when there is a gas
exchange problem? Select all that apply.
NR 283 EXAM 10 QUESTIONS WITH
CORRECT ANSWERS
Gas Exchange
Which of the following can cause alterations in gas exchange? Select all that
apply.
A. Blockage in the blood traveling away from the lung
B. Inability of the carbon dioxide to detach from the hemoglobin and enter the
cells of the body
C. Inability for air to be exhaled from the lung
D. Inability for carbon dioxide to diffuse across capillaries and into the alveoli
E. Inability for oxygen to diffuse across the capillaries and into the red blood
cell
F. Blockage of air traveling into the lung
A, C, D, E, & F
Which of the following can cause alterations in gas exchange? Select all that
apply.
A. Confusion
B. Low oxygen saturation
C. Loss of consciousness
D. Improved cognitive function
E. Red discoloration of the skin
A, B, & C
Which actions will help prevent gas exchange problems in the future? Select
all that apply.
A. Avoiding high levels of outdoor air pollution
B. Smoking cessation
, Page 2 of 17
C. Using an air purifier indoors
D. Learning to swim
E. Getting vaccinated against COVID-19
All of them
Does gas exchange occur in this part of the lungs?
Trachea
Diaphragm
Alveoli
Bronchioles
Trachea--gas exchange does not occur
Diaphragm--gas exchange does not occur
Alveoli--gas exchange occurs
Bronchioles--gas exchange does not occur
Which best describes the way oxygen and carbon dioxide move between the
alveoli and capillaries?
Gases move from a high pressure and concentration to a low pressure and
concentration.
What do we already know about oxygen? Select all that apply.
A. Oxygen is vital for cellular metabolism.
B. Oxygen is exchanged for carbon dioxide in the lung alveoli.
C. Hemoglobin is the transport vehicle for oxygen.
D. Each hemoglobin molecule is limited by the amount of oxygen it can carry.
E. Oxygen pressure is not used in the transfer of gases.
F. Higher altitudes make oxygen exchange easier.
A, B, C, & D
Cause of impaired gas exchange. Ventilation problem or Perfusion problem?
Tongue blocking airway
Blood loss
Muscle weakness
Carbon monoxide poisoning
No air
Sickle cell disease
, Page 3 of 17
Ventilation Problem
-Tongue blocking airway
-Muscle weakness
-No air
Perfusion problem
-Carbon monoxide poisoning
-Blood loss
-Sickle cell disease
When gas exchange is impaired, the body compensates.
(Increased/Decreased) oxygen levels in the arterial blood signal the body to
(increase/decrease) respirations, blood pressure, and heart rate so quicker gas
exchange can occur.
Decreased....increased
Which actions will help prevent gas exchange problems in the future? Select
all that apply.
A. Reading the warnings and following them when using bleach
B. Going out on days when there is a pollution advisory
C. Smoking a cigar to celebrate an achievement
D. Walking a mile at a fast pace
E. Getting an influenza shot yearly
A, D, & E
Which of the following suggests a gas exchange problem? Select all that
apply.
A. Chest pain
B. Shortness of breath
C. Cough
D. Elevated oxygen saturation
E. Smoker
A, B, C, & E
Which are homeostatic mechanisms used by the body when there is a gas
exchange problem? Select all that apply.
