although stress exposure initiates integrated responses by multiple systems the most important changes are first activated by which system
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Nursing Elites

ATI RN

ATI Pathophysiology Exam 2

1. Although stress exposure initiates integrated responses by multiple systems, which system first activates the most important changes?

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. How does influenza immunization produce immunity?

Correct answer: C

Rationale: The correct answer is C. Influenza immunization works by introducing a weakened or inactivated form of the virus into the body, allowing the immune system to recognize it as foreign. This recognition triggers the production of antibodies specific to the virus. Choice A is incorrect as the virus in the vaccine does not remain in the body until the end of the season. Choice B is incorrect as an attenuated virus does not cause immune system suppression but rather stimulates an immune response. Choice D is incorrect because the vaccine does not stay at the injection site but rather prompts a systemic immune response throughout the body.

3. What should the nurse discuss with a patient with a history of cardiovascular disease regarding the risks of hormone replacement therapy (HRT)?

Correct answer: A

Rationale: The correct answer is A. Hormone replacement therapy (HRT) is associated with an increased risk of cardiovascular events, including heart attack and stroke, especially in patients with a history of cardiovascular disease. Choice B is incorrect because HRT is not typically used to decrease the risk of osteoporosis. Choice C is incorrect as mood and energy level improvements are not the primary risks associated with HRT. Choice D is incorrect because HRT may actually increase the risk of breast cancer in some individuals.

4. The nurse is caring for a client with an astrocytoma. The client asks, 'What do astrocytes do in the brain?' What is the nurse's best response?

Correct answer: A

Rationale: Astrocytes play a crucial role in supporting and nourishing neurons by providing metabolic support, maintaining the blood-brain barrier, and regulating the chemical environment of the brain. While astrocytes are essential for brain function, they are not neurons and do not transmit electrical signals (Choice B). Astrocytes are not primarily involved in immune responses in the brain (Choice C) or in regulating blood flow in the brain (Choice D), although they indirectly influence blood flow through their support functions.

5. A male patient receiving androgen therapy is concerned about the risk of prostate cancer. What should the nurse explain regarding this risk?

Correct answer: A

Rationale: The correct answer is A. Finasteride has been shown to lower the risk of developing prostate cancer. However, regular screenings are still recommended to monitor for any potential issues. Choice B is incorrect because finasteride has been associated with a reduced risk of developing prostate cancer. Choice C is incorrect as finasteride is not known to increase the risk of prostate cancer; in fact, it has shown a protective effect. Choice D is incorrect because while finasteride may lower the risk of prostate cancer, regular screenings are still necessary to ensure early detection and treatment if needed.

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