as you are walking in the park a huge black labrador dog runs up to you and places his paws on your shoulders immediately your heart starts racing you
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Nursing Elites

ATI RN

ATI Pathophysiology Exam 1

1. As you are walking in the park, a huge black Labrador runs up to you and places his paws on your shoulders. Immediately your heart starts racing, you feel palpitations, anxiety, and your hands become a little shaky. The nurse knows that this response is primarily caused by:

Correct answer: D

Rationale: The autonomic nervous system controls involuntary bodily functions like heart rate, respiration, and sweating. In the given scenario, the 'fight or flight' response is activated, leading to increased heart rate, palpitations, anxiety, and shaky hands. The cerebral cortex is involved in conscious thought processes and decision-making, not the immediate physiological response observed here. The somatic nervous system regulates voluntary movements, while the limbic system is responsible for emotions and memory, but the autonomic nervous system is primarily responsible for the physiological responses seen in this situation.

2. When discussing the risks associated with hormone replacement therapy (HRT) with a patient who has a history of coronary artery disease, what should the nurse emphasize?

Correct answer: A

Rationale: The correct answer is A. Hormone replacement therapy (HRT) is associated with an increased risk of cardiovascular events, such as heart attack and stroke, especially in patients with a history of coronary artery disease. Choice B is incorrect because HRT is actually known to decrease the risk of osteoporosis. Choice C is incorrect as HRT is associated with an increased risk of venous thromboembolism. Choice D is also incorrect as HRT may slightly increase the risk of breast cancer.

3. A nurse caring for a patient with a diagnosis of lung cancer is aware that the primary risk factor for developing lung cancer is:

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.

4. A client with amyotrophic lateral sclerosis (ALS) is admitted to the hospital. Which intervention should the nurse include in the plan of care?

Correct answer: C

Rationale: The correct intervention for a client with ALS is to provide nutritional support to prevent aspiration. ALS causes muscle weakness, including the muscles used for swallowing, increasing the risk of aspiration. Providing proper nutrition and support can help prevent this complication. Administering muscle relaxants (Choice A) may not be suitable for ALS as it can further weaken muscles. While assisting with ADLs (Choice B) and encouraging physical therapy (Choice D) are important aspects of care, the priority for a client with ALS is to prevent complications related to swallowing and nutrition.

5. A patient has developed a decubitus ulcer on the coccyx. What defense mechanism is most affected by this homeostatic change?

Correct answer: C

Rationale: In this scenario, a decubitus ulcer on the coccyx indicates a breakdown of the skin's integrity due to prolonged pressure. The skin is the primary defense mechanism of the body against external pathogens. When the skin is compromised, it can lead to infections and other complications. The mucous membrane (Choice A) plays a role in protecting internal surfaces, not the skin. The respiratory tract (Choice B) is involved in breathing and not directly related to the skin's defense. The gastrointestinal tract (Choice D) is responsible for digestion and absorption of nutrients, not the primary defense mechanism against external threats like the skin.

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