ATI RN
ATI Pathophysiology Exam 3
1. What is the process of moving air into the lungs with subsequent distribution to the alveoli called?
- A. Ventilation
- B. Aeration
- C. Enclosure vapor
- D. Residual volume
Correct answer: A
Rationale: The correct answer is A: Ventilation. Ventilation is the process of moving air into the lungs and distributing it to the alveoli for gas exchange. Choice B, Aeration, is not the correct term for this specific process. Choice C, Enclosure vapor, is not related to the movement of air into the lungs. Choice D, Residual volume, refers to the amount of air left in the lungs after maximal expiration and is not the process of moving air into the lungs.
2. When starting on oral contraceptives, what should the nurse include in the education regarding the timing of the medication?
- A. Oral contraceptives should be taken at the same time each day to maintain stable hormone levels and prevent pregnancy.
- B. Oral contraceptives can be taken at any time of day, as long as the schedule is consistent.
- C. Oral contraceptives should be taken in the morning to avoid nighttime side effects.
- D. Oral contraceptives are effective immediately upon starting, regardless of timing.
Correct answer: A
Rationale: When educating a patient starting on oral contraceptives, it is essential to stress the importance of taking the medication at the same time each day. This ensures stable hormone levels, improving the effectiveness of the contraceptives in preventing pregnancy. Choice B is incorrect because consistency in timing is crucial for maintaining hormone levels. Choice C is incorrect as there is no specific requirement to take oral contraceptives in the morning to avoid side effects. Choice D is incorrect as oral contraceptives may take some time to become fully effective, and consistent timing is important for their efficacy.
3. What is the primary action of bisphosphonates when prescribed to a patient with osteoporosis?
- A. It inhibits bone resorption, which helps maintain bone density.
- B. It stimulates new bone formation by increasing osteoblast activity.
- C. It increases calcium absorption in the intestines, which helps build stronger bones.
- D. It decreases calcium excretion by the kidneys, helping to maintain bone density.
Correct answer: A
Rationale: The correct answer is A: "It inhibits bone resorption, which helps maintain bone density." Bisphosphonates work by inhibiting bone resorption carried out by osteoclasts, thereby preventing the breakdown of bones and helping to maintain or increase bone density in patients with osteoporosis. Choices B, C, and D are incorrect because bisphosphonates do not directly stimulate new bone formation, increase calcium absorption in the intestines, or decrease calcium excretion by the kidneys.
4. Which immunoglobulin presents the first challenge to the antigen?
- A. IgA
- B. IgG
- C. IgM
- D. IgE
Correct answer: C
Rationale: IgM is the first immunoglobulin to challenge the antigen during an immune response. IgM is the primary antibody produced during the initial or primary immune response. It is efficient in agglutination and complement activation, making it crucial in the early stages of defense. IgA is mainly found in mucosal areas and secretions. IgG is the most abundant antibody in circulation and is involved in secondary immune responses. IgE is primarily associated with allergic reactions and parasitic infections. Therefore, IgM is the correct choice as it acts first during the immune response, while the other immunoglobulins have different roles and functions.
5. A man with gout has developed large, hard nodules around his toes and elbows. The phase of gout he is in is:
- A. asymptomatic
- B. acute flare
- C. the intercritical period
- D. chronic gout
Correct answer: D
Rationale: The correct answer is 'chronic gout.' Chronic gout is characterized by the presence of tophi, which are large, hard nodules that can develop around joints like toes and elbows. These tophi are a sign of longstanding, untreated gout. Choice A, 'asymptomatic,' is incorrect as the presence of tophi indicates a symptomatic phase. Choice B, 'acute flare,' is incorrect as acute flares are characterized by sudden and severe pain, inflammation, and redness in the joints, not the development of tophi. Choice C, 'the intercritical period,' is also incorrect as this phase occurs between acute attacks and is typically asymptomatic, without the presence of tophi.
Similar Questions
Access More Features
ATI RN Basic
$69.99/ 30 days
- 5,000 Questions with answers
- All ATI courses Coverage
- 30 days access
ATI RN Premium
$149.99/ 90 days
- 5,000 Questions with answers
- All ATI courses Coverage
- 30 days access