1
NUR 210
NUR 210/ NUR210 Exam 3| Questions &
Answers| Grade A| 100% Correct (Verified
Solutions) (2025/ 2026 Update)
1. Is it more or less difficult to expand an alveoli that has
collapsed versus one that stays open?: more difficult
2. What are factors that affect compliance of the airways?:
inflammation: throat swelling, any infection that happens in lungs
can cause inflammation in lung passages; more difficult for air to go
in and out
infection: bronchitis, pneumonia; bronchiole passages are
stiffer increased mucous production: cold
all make it more difficult for air to move in and out
3. What is surfactant?: increases surface tension or elasticity of the
alveoli; helps keep them open so patient doesn't have to work as
hard to keep opening alveoli
NUR 210
, 2
NUR 210
4. What is an example of a potential nursing diagnosis related to
compliance respiratory issues?: ineffective airway clearance; if
someone has pneumonia, bronchitis, etc
5. What is diffusion?: the movement of gases from areas of higher
pressure concentration to lower pressure concentration
6. What is an example of a potential nursing diagnosis related to
diffusion respiratory issues?: impaired gas exchange
7. What are some factors that affect diffusion: decreased surface
area: alveoli that are collapsed patient has part of lung removed
infection with mucous and fluid; alveoli membrane is thick and gas
can't get through; CHF, pulmonary edema, pneumonia
perfusion of alveoli with blood that gas exchange goes into; caused by
anemia, blood clot blocking flow, or poor pumping of the heart
8. What is the term for collapsed alveoli?: atelectasis
9. Describe the pathway of air.: air enters through mouth or nose,
through throat, enters trachea, moves from trachea to the lungs,
where it goes through left and right bronchus, through the
NUR 210
, 3
NUR 210
bronchioles, to the alveoli, alveoli inflate/deflate with inhalation and
exhalation
10. Explain how gas exchange occurs.: lungs exchange oxygen to
the bloodstream while CO2 passes from the blood to the lungs;
oxygen attaches to RBC and travels to the heart while the CO2 in
the lungs is exhaled
11. How is blood transported to the cells?: oxygen combines with
hemoglobin
(oxyhemoglobin) and be carried to the tissues
12. What are we measuring when we put a pulse ox on
somebody?: oxyhemoglobin
13. What are factors that affect pulse ox readings?: severe anemia:
gives falsely low readings; underestimates real pulse ox
14. What factors affect transportation?: decreased cardiac output:
amount of blood heart pumps with each beat; caused by lack of
fluid (hypovolemia) and poorly pumping heart (CHF)
NUR 210
, 4
NUR 210
decreased hemoglobin: lack of red blood cells to carry oxygen; result
of some type of anemia
15. Which part of the respiratory steps will each of these factors
affect? pneumonia anesthesia fractured ribs anemia CHF
asthma: pneumonia: compliance, diffusion (blockage by
mucous) anesthesia: ventilation (have to overcome dead
space) fractured ribs: ventilation (flail chest, paradoxical
chest wall movement) anemia: transportation (not enough
RBC)
CHF: transportation (poorly pumping heart), diffusion (fluid
roadblock) asthma: compliance (inflammation and constriction)
blood clot in lungs: diffusion (poor perfusion due to clot blocking flow)
16. how do we asses the respiratory system?: looking for signs of
hypoxia: lack of oxygen to tissues
hypoxemia: lack of oxygen in the blood
NUR 210
NUR 210
NUR 210/ NUR210 Exam 3| Questions &
Answers| Grade A| 100% Correct (Verified
Solutions) (2025/ 2026 Update)
1. Is it more or less difficult to expand an alveoli that has
collapsed versus one that stays open?: more difficult
2. What are factors that affect compliance of the airways?:
inflammation: throat swelling, any infection that happens in lungs
can cause inflammation in lung passages; more difficult for air to go
in and out
infection: bronchitis, pneumonia; bronchiole passages are
stiffer increased mucous production: cold
all make it more difficult for air to move in and out
3. What is surfactant?: increases surface tension or elasticity of the
alveoli; helps keep them open so patient doesn't have to work as
hard to keep opening alveoli
NUR 210
, 2
NUR 210
4. What is an example of a potential nursing diagnosis related to
compliance respiratory issues?: ineffective airway clearance; if
someone has pneumonia, bronchitis, etc
5. What is diffusion?: the movement of gases from areas of higher
pressure concentration to lower pressure concentration
6. What is an example of a potential nursing diagnosis related to
diffusion respiratory issues?: impaired gas exchange
7. What are some factors that affect diffusion: decreased surface
area: alveoli that are collapsed patient has part of lung removed
infection with mucous and fluid; alveoli membrane is thick and gas
can't get through; CHF, pulmonary edema, pneumonia
perfusion of alveoli with blood that gas exchange goes into; caused by
anemia, blood clot blocking flow, or poor pumping of the heart
8. What is the term for collapsed alveoli?: atelectasis
9. Describe the pathway of air.: air enters through mouth or nose,
through throat, enters trachea, moves from trachea to the lungs,
where it goes through left and right bronchus, through the
NUR 210
, 3
NUR 210
bronchioles, to the alveoli, alveoli inflate/deflate with inhalation and
exhalation
10. Explain how gas exchange occurs.: lungs exchange oxygen to
the bloodstream while CO2 passes from the blood to the lungs;
oxygen attaches to RBC and travels to the heart while the CO2 in
the lungs is exhaled
11. How is blood transported to the cells?: oxygen combines with
hemoglobin
(oxyhemoglobin) and be carried to the tissues
12. What are we measuring when we put a pulse ox on
somebody?: oxyhemoglobin
13. What are factors that affect pulse ox readings?: severe anemia:
gives falsely low readings; underestimates real pulse ox
14. What factors affect transportation?: decreased cardiac output:
amount of blood heart pumps with each beat; caused by lack of
fluid (hypovolemia) and poorly pumping heart (CHF)
NUR 210
, 4
NUR 210
decreased hemoglobin: lack of red blood cells to carry oxygen; result
of some type of anemia
15. Which part of the respiratory steps will each of these factors
affect? pneumonia anesthesia fractured ribs anemia CHF
asthma: pneumonia: compliance, diffusion (blockage by
mucous) anesthesia: ventilation (have to overcome dead
space) fractured ribs: ventilation (flail chest, paradoxical
chest wall movement) anemia: transportation (not enough
RBC)
CHF: transportation (poorly pumping heart), diffusion (fluid
roadblock) asthma: compliance (inflammation and constriction)
blood clot in lungs: diffusion (poor perfusion due to clot blocking flow)
16. how do we asses the respiratory system?: looking for signs of
hypoxia: lack of oxygen to tissues
hypoxemia: lack of oxygen in the blood
NUR 210
