Nursing Elites

1. The nurse is teaching a group of students about myelination in a child. Which statement by the students indicates that the teaching was successful?

• A. Myelination continues into adolescence and beyond.
• B. The process occurs in a cephalocaudal (head-to-toe) pattern.
• C. Myelination decreases the speed of nerve impulses.
• D. Myelination decreases the specificity of nerve impulses.

Correct answer: B

Rationale: The correct answer is B. Myelination occurs in a cephalocaudal (head-to-toe) pattern, improving nerve function progressively. Choice A is incorrect as myelination continues into adolescence and beyond, not just during childhood. Choice C is incorrect because myelination actually increases the speed of nerve impulses rather than decreasing it. Choice D is incorrect as myelination enhances the specificity of nerve impulses, making them more efficient and precise rather than less specific.

2. A child with a diagnosis of bronchiolitis is admitted to the hospital. What is the most important nursing intervention?

• A. Administering bronchodilators
• B. Providing respiratory therapy
• C. Monitoring oxygen saturation
• D. Encouraging fluid intake

Correct answer: B

Rationale: The most important nursing intervention for a child with bronchiolitis is providing respiratory therapy. This intervention helps to maintain airway patency and improve breathing by assisting with mucus clearance and ventilation. Administering bronchodilators (Choice A) may be considered in some cases, but it is not the most crucial intervention for bronchiolitis. Monitoring oxygen saturation (Choice C) is important but is not as directly impactful as providing respiratory therapy. Encouraging fluid intake (Choice D) is important for hydration but does not directly address the respiratory distress associated with bronchiolitis.

3. The parents of a child who is scheduled for open-heart surgery ask why their child must be subjected to chest tubes after surgery. What should the nurse consider before responding in language the parents will understand?

• A. They will increase tidal volumes.
• B. Drainage of air and fluid will be facilitated.
• C. They will maintain positive intrapleural pressure.
• D. Pressure on the pericardium and chest wall will be regulated.

Correct answer: B

Rationale: Chest tubes are necessary after open-heart surgery to facilitate the drainage of air and fluid from the chest cavity. These tubes help prevent complications such as pneumothorax (accumulation of air in the pleural space) or cardiac tamponade (build-up of fluid in the pericardial sac), which can be serious postoperative issues. Options A, C, and D are incorrect because chest tubes are primarily used for draining purposes and not for increasing tidal volumes, maintaining positive intrapleural pressure, or regulating pressure on the pericardium and chest wall.

4. A 7-year-old child with a diagnosis of type 1 diabetes mellitus is under the care of a nurse. What is the priority nursing intervention?

• A. Administering insulin as prescribed
• B. Monitoring blood glucose levels
• C. Teaching the child how to self-administer insulin
• D. Encouraging regular exercise

Correct answer: B

Rationale: The priority nursing intervention for a 7-year-old child with type 1 diabetes mellitus is monitoring blood glucose levels. This is crucial for managing and adjusting insulin therapy to maintain blood glucose within the target range. Administering insulin as prescribed is important but should be based on monitoring blood glucose levels. Teaching the child how to self-administer insulin may be appropriate for older children but may not be the priority for a 7-year-old. Encouraging regular exercise is a valuable aspect of diabetes management but is not the immediate priority over monitoring blood glucose levels.

5. The caregiver is teaching the mother of a toddler about burn prevention. Which response by the mother indicates a need for further teaching?

• A. We will leave fireworks displays to the professionals.
• B. I will set our water heater at 130 degrees.
• C. All sleepwear should be flame retardant.
• D. The handles of pots on the stove should face inward.

Correct answer: B

Rationale: The correct answer is B. Setting the water heater at 130 degrees is incorrect because water heaters should be set to no higher than 120 degrees to prevent scald burns. Choice A is correct as leaving fireworks displays to professionals reduces the risk of burns. Choice C is also correct as flame-retardant sleepwear reduces the risk of burn injuries. Choice D is correct as keeping pot handles facing inward prevents accidental spills and burns.

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