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. Which of these clients, all in the terminal stage of cancer, is least appropriate to suggest the use of patient-controlled analgesia (PCA) with a pump?

Correct answer: D

Rationale: The correct answer is D. A preschooler with intermittent alertness episodes is not a suitable candidate for patient-controlled analgesia (PCA) due to their inability to effectively manage the system. In the context of terminal cancer, it is crucial for the patient to be able to utilize the PCA system appropriately to manage pain effectively. Preschoolers may not have the cognitive ability or understanding to operate a PCA pump compared to the other clients. Choices A, B, and C present clients with conditions that do not inherently impede their ability to use a PCA pump effectively.

3. While changing a client's chest tube dressing, the nurse notes a cracking sensation when gentle pressure is applied to the skin at the insertion site. What is the best action for the nurse to take?

Correct answer: D

Rationale: When a nurse observes crepitus around a chest tube site, it could indicate subcutaneous emphysema, a potentially serious condition where air gets trapped under the skin. Measuring the area of swelling and crackling is important as it helps monitor the progression of subcutaneous emphysema. Applying a pressure dressing (choice A) might not address the underlying cause and could potentially worsen the condition. Administering an oral antihistamine (choice B) is not indicated for crepitus at a chest tube site. Assessing for allergies to topical cleaning agents (choice C) is important but not the immediate priority when crepitus is observed.

4. A 30-year-old male client reports difficulty sleeping due to anxiety about his upcoming surgery. What intervention would be most appropriate for the nurse to suggest?

Correct answer: A

Rationale: The most appropriate intervention for the nurse to suggest to a 30-year-old male client experiencing difficulty sleeping due to anxiety about his upcoming surgery is to recommend taking a mild sedative before bed. A mild sedative can help manage anxiety and improve sleep in such situations. Encouraging physical activity before bedtime, advising to listen to calming music, or recommending reading a book may not directly address the client's anxiety and may not be as effective in promoting sleep in this scenario.

5. A client with multiple sclerosis is experiencing fatigue. What is the nurse's priority intervention?

Correct answer: D

Rationale: The correct answer is D: Advise the client to use energy conservation techniques. Energy conservation techniques are crucial in managing fatigue in multiple sclerosis. These techniques involve prioritizing activities, pacing oneself, and taking rest breaks to prevent overexertion, which can exacerbate fatigue. Encouraging the client to increase physical activity (choice A) may worsen fatigue if not done with proper energy conservation. Taking rest breaks during activities (choice B) is important but falls secondary to teaching energy conservation techniques. Administering a stimulant medication to reduce fatigue (choice C) should not be the priority as non-pharmacological interventions like energy conservation should be attempted first.

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