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. Muscular dystrophy is a result of an abnormality of the muscle protein:

Correct answer: B

Rationale: Muscular dystrophy is primarily caused by mutations in the gene that provides instructions for making the protein dystrophin. Dystrophin plays a crucial role in maintaining the structure of muscle fibers. Glycoprotein is a general term for proteins with sugar molecules attached, not specifically related to muscular dystrophy. Troponin is a protein involved in muscle contraction regulation, and actinomyosin is not a specific muscle protein but a complex formed during muscle contraction. Therefore, the correct answer is dystrophin.

3. While planning care for an elderly patient, the nurse remembers that increased age is associated with:

Correct answer: D

Rationale: As individuals age, their immune function tends to decrease, making them more susceptible to infections and diseases. Additionally, increased age is associated with higher levels of circulating autoantibodies, which can lead to autoimmune conditions. Choice A is incorrect as aging is not typically associated with increased T cell function. Choice C is also incorrect as aging does not necessarily result in increased production of antibodies. Therefore, the correct answers are B (Decreased immune function) and D (Increased levels of circulating autoantibodies).

4. What are the characteristics of the inflammatory process?

Correct answer: B

Rationale: The correct answer is B: Pain, redness. Inflammation is characterized by pain and redness as part of the body's response to tissue injury. Choice A, loss of function and coolness, are not primary characteristics of inflammation. Choice C, heat and pallor, may be present in some cases but are not as consistently associated with inflammation as pain and redness. Choice D, swelling and pallor, includes swelling which is common in inflammation but pallor is not a typical characteristic.

5. A patient is taking medroxyprogesterone acetate (Provera) for the treatment of endometriosis. What should the nurse include in the patient teaching?

Correct answer: C

Rationale: The correct answer is to take the medication at the same time each day to maintain consistent hormone levels. This is important for the effectiveness of medroxyprogesterone acetate. Choice A is incorrect because medroxyprogesterone acetate does not need to be taken with food. Choice B is irrelevant as sun exposure is not a concern with this medication. Choice D is incorrect as discontinuing the medication without consulting a healthcare provider can lead to adverse effects.

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