Exam (elaborations)

NURS242 Exam 3 Expected Questions and Answers (2024 / 2025) (Verified Answers)- Chamberlain 1. What is ventilation? - CORRECT ANSWER the movement of air into and out of the lungs 2. What is perfusion? - CORRECT ANSWER the circulation of blood through

0 purchase

Course
NURS242

Institution
NURS242

NURS242 Exam 3 Expected Questions and Answers (2024 / 2025) (Verified Answers)- Chamberlain 1. What is ventilation? - CORRECT ANSWER the movement of air into and out of the lungs 2. What is perfusion? - CORRECT ANSWER the circulation of blood through the lungs 3. What are central chem...

[Show more]

Preview 4 out of 32 pages

View example

Uploaded on November 19, 2024
Number of pages 32
Written in 2024/2025
Type Exam (elaborations)
Contains Questions & answers

2025
2024
nurs242 exam 3 expected questions and answers 20

$8.99

Add to cart

Add to wishlist

100% satisfaction guarantee
Immediately available after payment
Both online and in PDF
No strings attached

NURS242 Exam 3 Expected Questions
and Answers () (Verified
Answers)- Chamberlain
1. What is ventilation? - CORRECT ANSWER the movement of air into and out of
the lungs

2. What is perfusion? - CORRECT ANSWER the circulation of blood through the
lungs

3. What are central chemoreceptors responsive to? - CORRECT ANSWER
increased H+ in the brain ECF;
4. increased PaCO2;
5. "hypercarbic drive"

6. What are peripheral chemoreceptors responsive to? - CORRECT ANSWER
decreased pH;
7. increased PaCO2;
8. decreased PaO2;
9. "hypoxic drive"

10. What are elastic forces? - CORRECT ANSWER lungs recoil due to elastin,
collagen, fibrin

11. What are surface forces? - CORRECT ANSWER surface tension due to water-
air interface

12. What is airway resistance? - CORRECT ANSWER opposition to flow caused
by the forces of friction; primarily determined by airway radius

13. What is the distensibility of the lungs? - CORRECT ANSWER ease with which
the lungs can be inflated

14. What is lung distensibility increased in? - CORRECT ANSWER neonates and
children;
15. emphysema

16. What is lung distensibility decreased in? - CORRECT ANSWER elderly;
17. pneumonia, pulmonary edema, ARDS, atelectasis, fibrosis

18. What is surfactant? - CORRECT ANSWER complex substance lining the
alveoli and smallest bronchioles containing phospholipids and a number of

, apoproteins which reduces surface tension throughout the lungs, thereby
contributing to its general compliance;
19. stabilizes the alveoli and keeps them dry

20. What produces surfactant? - CORRECT ANSWER produced by the Type II
alveolar cells

21. What is Ohm's law? - CORRECT ANSWER velocity = driving force/resistance

22. What is Poiseuille law? - CORRECT ANSWER resistance = (8 x viscosity x
length) / (pi x radius^4)

23. What happens if the radius in the lungs goes down? - CORRECT ANSWER the
resistance goes up

24. How is the ventilation distributed in the lungs? - CORRECT ANSWER the top
of the lungs are more distended and less compliant whereas the lower lung is
small and highly compliant

25. What factors affect lung perfusion? - CORRECT ANSWER lung capacitance;
26. low resistance system;
27. flow influenced by gravity;
28. resistance primarily determined by vessel radius

29. What does hypoxia lead to? - CORRECT ANSWER vasoconstriction of
pulmonary vessels

30. What does prolonged hypoxia lead to? - CORRECT ANSWER pulmonary
hypertension

31. What factors affect alveolar-capillary diffusion? - CORRECT ANSWER capillary
permeability;
32. surface area available for diffusion;
33. concentration gradient for the gas;
34. distance for diffusion

35. What causes right shifts (decreased affinity) in Hemoglobin-O2 affinity? -
CORRECT ANSWER acidemia;
36. hyperthermia;
37. hypercarbia

38. What causes left shifts (increased affinity) in Hemoglobin-O2 affinity? -
CORRECT ANSWER alkalemia;
39. hypothermia;
40. hypocarbia

,41. What is hypoxemia? - CORRECT ANSWER deficient blood oxygen;
42. low PaO2;
43. low O2 saturation

44. What is hypoxia? - CORRECT ANSWER decreased tissue oxygen

45. What is hypoxic hypoxia? - CORRECT ANSWER decreased tissue oxygen
caused by decreased respirations

46. What is anemic hypoxia? - CORRECT ANSWER decreased tissue oxygen
caused by decreased hemoglobin

47. What is circulatory hypoxia? - CORRECT ANSWER decreased tissue oxygen
caused by decreased blood flow

48. What is histotoxic hypoxia? - CORRECT ANSWER decreased tissue oxygen
caused by increased toxic substance

49. What is ischemia? - CORRECT ANSWER greatly reduced or interrupted flow
through the arterial system, producing significant tissue hypoxia

50. What is hypercapnia? - CORRECT ANSWER increased level of CO2 in the
blood

51. What are S&S of acute hypoxia? - CORRECT ANSWER dyspnea;
restlessness; palpitations; agitation; headache; tremors; diaphoresis; respiratory
distress; cyanosis; tachypnea; tachycardia; dysrhythmias; hypertension; lethargy;
confusion to coma

52. What are some effects of hypercapnia? - CORRECT ANSWER respiratory
acidosis (decreased pH from increase in CO2); lethargy and confusion;
increased HR and BP; flushed skin; arrhythmias; seizures; coma; death

53. What is dyspnea? - CORRECT ANSWER subjective feeling of being SOB

54. What does dyspnea lead to? - CORRECT ANSWER decreased sense of
wellness which may cause psychological and social consequences

55. What is the leading cause of cancer death? - CORRECT ANSWER lung cancer

56. What is lung cancer most likely caused by? - CORRECT ANSWER cigarette
smoking;
57. asbestos;
58. familial predisposition

, 59. What are the manifestations of lung cancer? - CORRECT ANSWER cough,
hemoptysis (blood in cough sputum);
60. hoarseness;
61. chest pain;
62. often disseminated (spread widely) at time of diagnosis

63. What are the types of bronchogenic carcinomas? - CORRECT ANSWER
squamous cell lung carcinoma (25-40%);
64. adenocarcinoma (20-40%);
65. small cell carcinoma (20-25%);
66. large cell carcinoma (10-15%)

67. What is acute airway obstruction caused by? - CORRECT ANSWER foreign
body aspiration;
68. laryngospasm (spontaneous spasm of the vocal cords);
69. trauma

70. What is complete acute airway obstruction? - CORRECT ANSWER inspiratory
chest movements but no air movement;
71. tachycardia, cyanosis, rapid progression to unconsciousness

72. What is partial acute airway obstruction? - CORRECT ANSWER stridor (harsh
vibrating noise), wheezing, dyspnea, tachypnea, tachycardia, retractions (chest
moving inward)

73. What are some respiratory disorders in children? - CORRECT ANSWER upper
airway infections: viral croup, spasmodic croup, and epiglotitis;
74. lower airway infections: acute bronchiolitis

75. What is croup (laryngotracheobronchitis)? - CORRECT ANSWER inflammation
of the larynx with a sudden onset;
76. barking cough with stridor

77. What are the manifestations of viral croup? - CORRECT ANSWER febrile;
78. upper respiratory infection precedes

79. What are the manifestations of spasmodic croup? - CORRECT ANSWER
afebrile;
80. may be allergic

81. What is epiglotitis? - CORRECT ANSWER bacterial infection of supraglottic
structures;
82. high mortality without treatment

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller PROLEARNERS. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $8.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

69052 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 15 years now

Start selling