Nursing Elites

1. Prolonged exposure to high concentrations of supplemental oxygen over several days can cause which pathophysiological effect?

• A. Reduced cardiac output
• B. Disrupted surfactant production
• C. Hyperactivity of alveoli
• D. Increased oxygen carrying capacity

Correct answer: B

Rationale: Corrected Rationale: Prolonged exposure to high oxygen concentrations can disrupt the production of surfactant in the lungs, leading to atelectasis and other lung complications. Surfactant is essential for maintaining lung compliance and preventing alveolar collapse. Reduced cardiac output (Choice A) is not directly associated with prolonged oxygen exposure. Hyperactivity of alveoli (Choice C) is not a recognized consequence of high oxygen levels. Increased oxygen carrying capacity (Choice D) is not a pathophysiological effect of prolonged high oxygen exposure.

2. The nurse is assessing a client with a new diagnosis of hyperthyroidism. Which assessment finding should the nurse expect?

• A. Decreased heart rate
• B. Increased appetite
• C. Cold intolerance
• D. Weight gain

Correct answer: B

Rationale: In hyperthyroidism, there is an increase in metabolism, leading to symptoms such as increased appetite, weight loss, and heat intolerance. Therefore, the nurse should expect an increased appetite in a client with hyperthyroidism. Choices A, C, and D are incorrect because decreased heart rate and cold intolerance are more commonly associated with hypothyroidism, while weight gain is not typically seen in hyperthyroidism.

3. Which client is at greatest risk for developing delirium?

• A. An adult client who cannot sleep due to pain.
• B. An older client who attempted suicide 1 month ago.
• C. A young adult taking antipsychotic medications twice daily.
• D. A middle-aged woman using supplemental oxygen.

Correct answer: B

Rationale: The correct answer is B. Older adults who have attempted suicide are at higher risk for developing delirium, especially in the context of underlying mental health conditions. Choice A is incorrect as sleep disturbances due to pain may lead to discomfort but not necessarily delirium. Choice C is incorrect as taking antipsychotic medications, if managed well, does not inherently increase the risk of delirium. Choice D is incorrect as using supplemental oxygen alone does not significantly increase the risk of developing delirium.

4. A client receiving chemotherapy for cancer treatment is experiencing nausea and vomiting. What is the nurse's best intervention to manage these symptoms?

• A. Offer frequent, small meals
• B. Administer antiemetics before meals
• C. Encourage the client to eat a high-fat diet
• D. Provide the client with cold, carbonated beverages

Correct answer: B

Rationale: Administering antiemetics before meals is the best intervention to manage nausea and vomiting in clients receiving chemotherapy. This proactive approach helps control symptoms by preventing nausea from occurring, rather than waiting to treat it once symptoms have already started. Offering frequent, small meals (choice A) may worsen symptoms in some cases due to increased stomach activity. Encouraging a high-fat diet (choice C) can be difficult for nauseated clients and may not alleviate symptoms. Providing cold, carbonated beverages (choice D) could exacerbate nausea further due to the temperature and carbonation.

5. What are the primary pathophysiological mechanisms responsible for ascites in liver failure?

• A. Decreased liver enzymes.
• B. Increased hydrostatic pressure in portal circulation.
• C. High bilirubin levels.
• D. Fluid shifts due to decreased serum proteins.

Correct answer: B

Rationale: The correct answer is B: Increased hydrostatic pressure in portal circulation. Ascites in liver failure is primarily caused by fluid shifts from the intravascular space to the interstitial space due to increased hydrostatic pressure in the portal circulation. Choice A is incorrect as ascites is not caused by decreased liver enzymes. Choice C is incorrect as high bilirubin levels are not the primary mechanism for ascites in liver failure. Choice D is incorrect as fluid shifts in ascites are due to decreased serum proteins, not increased serum proteins.

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