ATI RN
ATI Pathophysiology Exam 2
1. Although stress exposure initiates integrated responses by multiple systems, which system first activates the most important changes?
- A. Pulmonary
- B. Gastrointestinal
- C. Neuroendocrine
- D. Cardiovascular
Correct answer: C
Rationale: The correct answer is C, the Neuroendocrine system. When the body is exposed to stress, the neuroendocrine system plays a crucial role in initiating the body's response. This system, particularly through the hypothalamic-pituitary-adrenal axis, triggers a cascade of physiological responses to stress. Choices A, B, and D are incorrect because while other systems like the cardiovascular and gastrointestinal systems also respond to stress, the neuroendocrine system is primarily responsible for the initial and significant changes in the body's stress response.
2. A nurse caring for a patient with a diagnosis of lung cancer is aware that the primary risk factor for developing lung cancer is:
- A. Alcohol consumption
- B. Smoking
- C. Poor diet
- D. Environmental exposure
Correct answer: B
Rationale: The correct answer is B: Smoking. Smoking is the primary risk factor for developing lung cancer. Tobacco smoke contains numerous carcinogens that can damage the cells in the lungs, leading to the development of cancer. Alcohol consumption (Choice A), poor diet (Choice C), and environmental exposure (Choice D) can contribute to overall health risks, but they are not the primary risk factors specifically associated with the development of lung cancer.
3. What should a nurse include in patient teaching for a patient prescribed medroxyprogesterone acetate (Provera) for endometriosis?
- A. Medroxyprogesterone should be taken at the same time each day to maintain consistent hormone levels and effectiveness in treating endometriosis.
- B. Medroxyprogesterone can be taken with food to reduce gastrointestinal upset.
- C. Medroxyprogesterone should be discontinued if side effects occur.
- D. Medroxyprogesterone should be taken once a week to maintain effectiveness.
Correct answer: A
Rationale: When teaching a patient prescribed medroxyprogesterone acetate (Provera) for endometriosis, the nurse should emphasize the importance of taking the medication at the same time each day. This helps maintain consistent hormone levels and ensures the effectiveness of the treatment. Option A is correct because it addresses this key point. Option B is incorrect because medroxyprogesterone should be taken consistently but not necessarily with food. Option C is incorrect because discontinuing the medication without consulting a healthcare provider is not advisable. Option D is incorrect as medroxyprogesterone is usually taken daily, not weekly, for the treatment of endometriosis.
4. A person is given an attenuated antigen as a vaccine. When the person asks what was given in the vaccine, how should the nurse respond? The antigen is:
- A. Alive, but less infectious
- B. Mutated, but highly infectious
- C. Normal, but not infectious
- D. Inactive, but infectious
Correct answer: A
Rationale: An attenuated antigen used in a vaccine is alive but less infectious, aiming to stimulate an immune response. Choice B is incorrect because an attenuated antigen is not highly infectious. Choice C is incorrect as the antigen is intentionally altered to be less infectious. Choice D is incorrect as an attenuated antigen is not infectious.
5. A 56-year-old woman has been experiencing memory loss and confusion for the past year. The client is diagnosed with Alzheimer's disease. Which finding is most characteristic of this disease?
- A. Neurofibrillary tangles in the brain
- B. Demyelination of neurons in the brain
- C. Accumulation of beta-amyloid plaques
- D. Formation of Lewy bodies
Correct answer: C
Rationale: The correct answer is C: Accumulation of beta-amyloid plaques. Alzheimer's disease is characterized by the accumulation of beta-amyloid plaques in the brain. These plaques are formed from the buildup of beta-amyloid protein fragments between nerve cells. Choice A, neurofibrillary tangles, are a hallmark of another neurodegenerative disease called Alzheimer's disease. Choice B, demyelination of neurons, is more characteristic of diseases like multiple sclerosis. Choice D, formation of Lewy bodies, is associated with Lewy body dementia, not Alzheimer's disease.
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