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 providing discharge teaching to a client with newly diagnosed hypertension. Which lifestyle modification should the nurse emphasize to the client?

• A. Increase sodium intake to improve fluid balance
• B. Engage in regular physical activity
• C. Increase caffeine intake to improve energy
• D. Reduce potassium intake to lower blood pressure

Correct answer: B

Rationale: Engaging in regular physical activity is a crucial lifestyle modification for managing hypertension. Regular exercise helps improve cardiovascular health, lower blood pressure, and contribute to overall well-being. Choices A, C, and D are incorrect. Increasing sodium intake is not recommended for hypertension as it can worsen fluid retention and elevate blood pressure. Increasing caffeine intake is also not advised as it may lead to increased heart rate and blood pressure. Reducing potassium intake is not beneficial as potassium is essential for maintaining healthy blood pressure levels.

3. The nurse is caring for a client who had a myocardial infarction 6 hours ago. The primary goal of care at this time is to

• A. Limit the effects of tissue damage
• B. Relieve pain and anxiety
• C. Prevent arrhythmias
• D. Reduce anxiety

Correct answer: A

Rationale: The correct answer is A: 'Limit the effects of tissue damage.' After a myocardial infarction, the primary goal of care is to limit the damage to the heart muscle. This includes interventions to improve blood flow, oxygenation, and prevent further complications. Choice B ('Relieve pain and anxiety') is important but secondary to addressing tissue damage. Choice C ('Prevent arrhythmias') is also crucial but falls under the broader goal of limiting tissue damage. Choice D ('Reduce anxiety') is essential for holistic care but is not the primary goal immediately after a myocardial infarction.

4. A client with a seizure disorder is prescribed phenytoin. What is the most important teaching the nurse should provide?

• A. Take phenytoin with antacids to reduce stomach upset.
• B. Maintain a consistent dosing schedule to prevent seizures.
• C. Monitor for excessive drowsiness and dizziness.
• D. Take the medication at bedtime to reduce seizure risk.

Correct answer: B

Rationale: The most important teaching the nurse should provide to a client prescribed phenytoin is to maintain a consistent dosing schedule to prevent seizures. Phenytoin is an antiepileptic drug, and missing doses can increase the risk of seizures. Option A is incorrect because antacids can interact with phenytoin and reduce its absorption. Option C is important but not the most critical teaching as compared to maintaining a consistent dosing schedule. Option D is incorrect because the timing of phenytoin administration should be consistent rather than specifically at bedtime.

5. The nurse is caring for a 24-month-old toddler who has sensory sensitivity, difficulty engaging in social interactions, and has not yet spoken two-word phrases. Which assessment should the nurse administer?

• A. Peabody Picture Vocabulary Test
• B. The Modified Checklist for Autism in Toddlers (M-CHAT)
• C. Wechsler Preschool and Primary Scale of Intelligence
• D. Denver Developmental Screening Test

Correct answer: B

Rationale: The Modified Checklist for Autism in Toddlers (M-CHAT) is specifically designed to screen for autism spectrum disorders in young children. It is appropriate for this child, given the signs of social and communication delays. The Peabody Picture Vocabulary Test (Choice A) assesses receptive vocabulary and may not capture the social and communication aspects seen in autism. The Wechsler Preschool and Primary Scale of Intelligence (Choice C) measures cognitive ability and may not address the social and communication delays. The Denver Developmental Screening Test (Choice D) is a broad developmental assessment tool, but the M-CHAT is more specific to screening for autism in this case.

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