ATI RN
ATI Pathophysiology Exam
1. What is the purpose of the inflammatory response?
- A. Prevents blood from entering the injured tissue
- B. Elevates body temperature to prevent spread of infection
- C. Prevents formation of abscess
- D. Minimizes injury and promotes healing
Correct answer: D
Rationale: The inflammatory response is a protective mechanism triggered by tissue damage or infection. It aims to minimize injury by removing harmful stimuli and initiating the healing process. Choice A is incorrect because blood flow to the injured tissue is actually increased to deliver immune cells and nutrients. Choice B is incorrect because while fever is a response to infection, it is not the primary purpose of the inflammatory response. Choice C is incorrect because abscess formation can occur as part of the inflammatory response in an attempt to contain an infection.
2. Innate resistance or immunity:
- A. Involves 'memory'
- B. Is a development of an individual's later years
- C. Is a relatively slow and specific process
- D. Depends on physical, mechanical, and biochemical barriers
Correct answer: D
Rationale: Innate resistance or immunity relies on the body's natural defenses like physical, mechanical, and biochemical barriers. These barriers act as the first line of defense against pathogens and do not involve memory (choice A). Innate immunity is present from birth and does not develop over an individual's later years (choice B). Additionally, innate immunity is a rapid and nonspecific process, not a slow and specific one (choice C). Therefore, the correct answer is D.
3. What is the characteristic of the condition of leukemia?
- A. A benign growth of skin cells
- B. A malignant growth of skin cells
- C. A malignant growth of white blood cells
- D. A benign growth of white blood cells
Correct answer: C
Rationale: The correct answer is C: 'A malignant growth of white blood cells.' Leukemia is a type of cancer that affects the blood and bone marrow, leading to an overproduction of abnormal white blood cells. These cells are malignant and impair the normal function of healthy blood cells. Choices A, B, and D are incorrect because leukemia does not involve skin cells or benign growths; instead, it specifically refers to the abnormal proliferation of white blood cells.
4. A patient is prescribed finasteride (Proscar) for benign prostatic hyperplasia (BPH). What outcome should the nurse expect to observe?
- A. Decreased urinary frequency and urgency
- B. Increased prostate size
- C. Increased blood pressure
- D. Increased risk of kidney stones
Correct answer: A
Rationale: The correct answer is A: Decreased urinary frequency and urgency. Finasteride is expected to decrease urinary frequency and urgency in patients with BPH by reducing prostate size. It works by inhibiting the enzyme that converts testosterone to dihydrotestosterone, which helps shrink the prostate gland. Choices B, C, and D are incorrect. Finasteride does not increase prostate size, blood pressure, or the risk of kidney stones.
5. What symptoms would the nurse expect to see in a client with chronic obstructive pulmonary disease (COPD)?
- A. Dyspnea on exertion
- B. Normal lung sounds
- C. Normal arterial blood gases
- D. Onset of the disease during young adulthood
Correct answer: A
Rationale: The correct answer is A: Dyspnea on exertion. COPD typically manifests with symptoms like dyspnea on exertion due to impaired lung function. This symptom is a result of the airways being obstructed and the lungs not being able to expel air effectively. Choices B and C are incorrect because in COPD, abnormal lung sounds such as wheezing, crackles, or diminished breath sounds are often heard upon auscultation, and arterial blood gases are usually abnormal, showing low oxygen levels and high carbon dioxide levels. Choice D is incorrect as COPD is more commonly diagnosed in individuals over 40 who have a history of smoking or exposure to lung irritants.
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