prolonged exposure to high concentrations of supplemental oxygen over several days can cause which pathophysiological effect
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Nursing Elites

HESI RN

HESI 799 RN Exit Exam Capstone

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

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. A client with a 42-week gestation refuses induction. What is the most important action the nurse should take?

Correct answer: A

Rationale: The most important action for the nurse in this situation is to discuss alternative ways to support the client's birth plan. By doing so, the nurse can ensure that the client feels heard, respected, and supported in their decision-making process. While explaining the risks of induction after 42 weeks (Choice B) may be important, it is secondary to supporting the client's autonomy and preferences. Asking the healthcare provider to discuss the situation with the client (Choice C) may delay crucial communication and support that the nurse can provide. Discussing the characteristics of labor with oxytocin vs. natural labor (Choice D) is not the priority when the client has refused induction, as the focus should be on respecting their decision and exploring other options for support.

3. The nurse is caring for a seated client experiencing a tonic-clonic seizure. Which actions should the nurse implement?

Correct answer: D

Rationale: During a tonic-clonic seizure, the nurse should loosen restrictive clothing to prevent injury and ease the client to the floor to ensure safety. Placing any object, such as a tongue depressor, in the client's mouth is contraindicated as it may cause harm. Restraint should not be used as it can lead to injury. Beginning CPR is not indicated during a seizure unless the client experiences cardiac arrest, which is a rare complication of seizures.

4. A client with hypertension is prescribed a thiazide diuretic. What dietary recommendation should the nurse make?

Correct answer: D

Rationale: The correct answer is D: 'Eat potassium-rich foods like bananas and oranges.' Thiazide diuretics can lead to potassium loss, so it is essential for clients to consume potassium-rich foods to maintain adequate levels. Choice A is incorrect because focusing solely on low carbohydrates and fats does not address the specific issue of potassium loss. Choice B is unrelated as vitamin K content is not a concern with thiazide diuretics. Choice C is incorrect as increasing salt intake would exacerbate hypertension and not prevent dehydration.

5. A client admitted with left-sided heart failure presents with shortness of breath and pink frothy sputum. Which assessment finding requires immediate intervention?

Correct answer: C

Rationale: Correct Answer: Pink frothy sputum and increased respiratory rate. Pink frothy sputum is a sign of pulmonary edema, indicating fluid in the lungs, a life-threatening condition that requires immediate intervention to prevent respiratory failure. Increased respiratory rate is also concerning as it indicates the body's effort to compensate for the decreased oxygenation. Options A, B, and D are not the most critical findings in this situation. Decreased breath sounds bilaterally may indicate a pneumothorax or atelectasis, heart rate of 110 bpm and irregular rhythm can be managed with medications and further assessment, and elevated blood pressure with shortness of breath is not as urgent as pink frothy sputum and increased respiratory rate.

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