NURS242 Exam 3 LATEST VERSION 273 QUESTIONS AND ANSWERS WITH STUDY GUIDE
DETAILED AND VERIFIED FOR GUARANTEED PASS, LATEST UPDATE 2025
1. What is perfu-
sion? the circulation of blood through the lungs
2. What are cen-
tral chemorecep- increased H+ in the brain ECF;
tors responsive increased PaCO2;
to? "hypercarbic drive"
3. What are periph-
decreased pH;
eral chemorecep- increased PaCO2;
tors responsive decreased PaO2;
to? "hypoxic drive"
4. What are elastic lungs recoil due to elastin, collagen, fibrin
forces?
5. What are surface surface tension due to water-air interface
forces?
6. What is airway re- opposition to flow caused by the forces of friction; primarily determined by airway
sistance? radius
7. What is the dis- ease with which the lungs can be inflated
tensibility of the
lungs?
8. What is lung neonates and children;
distensibility in- emphysema
creased in?
9.
, NURS242 Exam 3 LATEST VERSION 273 QUESTIONS AND ANSWERS WITH STUDY GUIDE
DETAILED AND VERIFIED FOR GUARANTEED PASS, LATEST UPDATE 2025
What is lung elderly;
distensibility de- pneumonia, pulmonary edema, ARDS, atelectasis, fibrosis
creased in?
10. What is surfac- complex substance lining the alveoli and smallest bronchioles containing phos-
tant? pholipids and a number of apoproteins which reduces surface tension through-
out the lungs, thereby contributing to its general compliance;
stabilizes the alveoli and keeps them dry
11. What produces produced by the Type II alveolar cells
surfactant?
12. What is Ohm's velocity = driving force/resistance
law?
13. What is Poiseuille resistance = (8 x viscosity x length) / (pi x radius^4)
law?
14. What happens if the resistance goes up
the radius in
the lungs goes
down?
15. How is the venti- the top of the lungs are more distended and less compliant whereas the lower
lation distributed lung is small and highly compliant
in the lungs?
16. What factors af- lung capacitance;
fect lung perfu- low resistance system;
sion? flow influenced by gravity;
resistance primarily determined by vessel radius
17. What does hy- vasoconstriction of pulmonary vessels
poxia lead to?
, NURS242 Exam 3 LATEST VERSION 273 QUESTIONS AND ANSWERS WITH STUDY GUIDE
DETAILED AND VERIFIED FOR GUARANTEED PASS, LATEST UPDATE 2025
18. What does pro- pulmonary hypertension
longed hypoxia
lead to?
19. What factors capillary permeability;
affect alveo- surface area available for dittusion;
lar-capillary dif- concentration gradient for the gas;
fusion? distance for dittusion
20. What causes acidemia;
right shifts (de- hyperthermia;
creased affini- hypercarbia
ty) in Hemoglo-
bin-O2 affinity?
21. What causes left alkalemia;
shifts (increased hypothermia;
affinity) in Hemo- hypocarbia
globin-O2 affini-
ty?
22. What is hypox- deficient blood oxygen;
emia? low PaO2;
low O2 saturation
23. What is hypoxia? decreased tissue oxygen
24. What is hypoxic decreased tissue oxygen caused by decreased respirations
hypoxia?
25. What is anemic decreased tissue oxygen caused by decreased hemoglobin
hypoxia?
, NURS242 Exam 3 LATEST VERSION 273 QUESTIONS AND ANSWERS WITH STUDY GUIDE
DETAILED AND VERIFIED FOR GUARANTEED PASS, LATEST UPDATE 2025
26. What is circulato- decreased tissue oxygen caused by decreased blood flow
ry hypoxia?
27. What is histotoxic decreased tissue oxygen caused by increased toxic substance
hypoxia?
28. What is is- greatly reduced or interrupted flow through the arterial system, producing signif-
chemia? icant tissue hypoxia
29. What is hyper- increased level of CO2 in the blood
capnia?
30. What are S&S of dyspnea; restlessness; palpitations; agitation; headache; tremors; diaphoresis;
acute hypoxia? respiratory distress; cyanosis; tachypnea; tachycardia; dysrhythmias; hyperten-
sion; lethargy; confusion to coma
31. What are some respiratory acidosis (decreased pH from increase in CO2); lethargy and confusion;
effects of hyper- increased HR and BP; flushed skin; arrhythmias; seizures; coma; death
capnia?
32. What is dyspnea? subjective feeling of being SOB
33. What does dysp- decreased sense of wellness which may cause psychological and social conse-
nea lead to? quences
34. What is the lead- lung cancer
ing cause of can-
cer death?
35. What is lung can- cigarette smoking;
cer most likely asbestos;
caused by? familial predisposition
36.
DETAILED AND VERIFIED FOR GUARANTEED PASS, LATEST UPDATE 2025
1. What is perfu-
sion? the circulation of blood through the lungs
2. What are cen-
tral chemorecep- increased H+ in the brain ECF;
tors responsive increased PaCO2;
to? "hypercarbic drive"
3. What are periph-
decreased pH;
eral chemorecep- increased PaCO2;
tors responsive decreased PaO2;
to? "hypoxic drive"
4. What are elastic lungs recoil due to elastin, collagen, fibrin
forces?
5. What are surface surface tension due to water-air interface
forces?
6. What is airway re- opposition to flow caused by the forces of friction; primarily determined by airway
sistance? radius
7. What is the dis- ease with which the lungs can be inflated
tensibility of the
lungs?
8. What is lung neonates and children;
distensibility in- emphysema
creased in?
9.
, NURS242 Exam 3 LATEST VERSION 273 QUESTIONS AND ANSWERS WITH STUDY GUIDE
DETAILED AND VERIFIED FOR GUARANTEED PASS, LATEST UPDATE 2025
What is lung elderly;
distensibility de- pneumonia, pulmonary edema, ARDS, atelectasis, fibrosis
creased in?
10. What is surfac- complex substance lining the alveoli and smallest bronchioles containing phos-
tant? pholipids and a number of apoproteins which reduces surface tension through-
out the lungs, thereby contributing to its general compliance;
stabilizes the alveoli and keeps them dry
11. What produces produced by the Type II alveolar cells
surfactant?
12. What is Ohm's velocity = driving force/resistance
law?
13. What is Poiseuille resistance = (8 x viscosity x length) / (pi x radius^4)
law?
14. What happens if the resistance goes up
the radius in
the lungs goes
down?
15. How is the venti- the top of the lungs are more distended and less compliant whereas the lower
lation distributed lung is small and highly compliant
in the lungs?
16. What factors af- lung capacitance;
fect lung perfu- low resistance system;
sion? flow influenced by gravity;
resistance primarily determined by vessel radius
17. What does hy- vasoconstriction of pulmonary vessels
poxia lead to?
, NURS242 Exam 3 LATEST VERSION 273 QUESTIONS AND ANSWERS WITH STUDY GUIDE
DETAILED AND VERIFIED FOR GUARANTEED PASS, LATEST UPDATE 2025
18. What does pro- pulmonary hypertension
longed hypoxia
lead to?
19. What factors capillary permeability;
affect alveo- surface area available for dittusion;
lar-capillary dif- concentration gradient for the gas;
fusion? distance for dittusion
20. What causes acidemia;
right shifts (de- hyperthermia;
creased affini- hypercarbia
ty) in Hemoglo-
bin-O2 affinity?
21. What causes left alkalemia;
shifts (increased hypothermia;
affinity) in Hemo- hypocarbia
globin-O2 affini-
ty?
22. What is hypox- deficient blood oxygen;
emia? low PaO2;
low O2 saturation
23. What is hypoxia? decreased tissue oxygen
24. What is hypoxic decreased tissue oxygen caused by decreased respirations
hypoxia?
25. What is anemic decreased tissue oxygen caused by decreased hemoglobin
hypoxia?
, NURS242 Exam 3 LATEST VERSION 273 QUESTIONS AND ANSWERS WITH STUDY GUIDE
DETAILED AND VERIFIED FOR GUARANTEED PASS, LATEST UPDATE 2025
26. What is circulato- decreased tissue oxygen caused by decreased blood flow
ry hypoxia?
27. What is histotoxic decreased tissue oxygen caused by increased toxic substance
hypoxia?
28. What is is- greatly reduced or interrupted flow through the arterial system, producing signif-
chemia? icant tissue hypoxia
29. What is hyper- increased level of CO2 in the blood
capnia?
30. What are S&S of dyspnea; restlessness; palpitations; agitation; headache; tremors; diaphoresis;
acute hypoxia? respiratory distress; cyanosis; tachypnea; tachycardia; dysrhythmias; hyperten-
sion; lethargy; confusion to coma
31. What are some respiratory acidosis (decreased pH from increase in CO2); lethargy and confusion;
effects of hyper- increased HR and BP; flushed skin; arrhythmias; seizures; coma; death
capnia?
32. What is dyspnea? subjective feeling of being SOB
33. What does dysp- decreased sense of wellness which may cause psychological and social conse-
nea lead to? quences
34. What is the lead- lung cancer
ing cause of can-
cer death?
35. What is lung can- cigarette smoking;
cer most likely asbestos;
caused by? familial predisposition
36.
