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. A 66-year-old woman is retiring and needs health insurance. To which agency should the employee health nurse refer her?

• A. Medicaid
• B. Medicare
• C. COBRA
• D. Private insurance

Correct answer: B

Rationale: The correct answer is B: Medicare. Medicare is the federal health insurance program for individuals aged 65 and older, so it is the most suitable option for the 66-year-old woman retiring. Medicaid (choice A) is a state and federally funded program for low-income individuals and families, not specifically for retirees. COBRA (choice C) allows employees to continue their employer-sponsored health insurance for a limited time after leaving employment. Private insurance (choice D) refers to health insurance plans purchased directly from private insurance companies.

3. The nurse is caring for a preterm newborn with nasal flaring, grunting, and sternal retractions. After administering surfactant, which assessment is most important for the nurse to monitor?

• A. Bowel sounds
• B. Heart rate
• C. Arterial blood gases
• D. Apnea episodes

Correct answer: C

Rationale: Corrected Rationale: Surfactant therapy is used to improve lung function and gas exchange in premature infants with respiratory distress. Monitoring arterial blood gases is essential to assess the effectiveness of the treatment and ensure adequate oxygenation. While monitoring heart rate is important in neonatal care, assessing arterial blood gases will provide direct information regarding the infant's oxygenation status post-surfactant administration. Bowel sounds are not directly related to the respiratory distress symptoms described, and monitoring apnea episodes, although important in preterm infants, is not the most crucial assessment immediately following surfactant administration.

4. 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.

5. A client with chronic kidney disease is prescribed a low-potassium diet. Which food should the nurse instruct the client to avoid?

• A. Carrots
• B. White bread
• C. Bananas
• D. Apples

Correct answer: C

Rationale: The correct answer is C: Bananas. Bananas are high in potassium and should be avoided in clients who are on a low-potassium diet due to chronic kidney disease. Foods like apples and white bread are low in potassium and are safer choices. Carrots are also low in potassium and do not need to be avoided in this case.

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