Nursing Elites

1. A child has been admitted to the pediatric unit with a severe asthma attack. What type of acid-base imbalance should the nurse expect the child to develop?

• A. metabolic alkalosis due to insufficient production of acid metabolites
• B. respiratory alkalosis due to depressed respirations and retention of carbon dioxide
• C. respiratory acidosis due to impaired respirations and increased formation of carbonic acid
• D. metabolic acidosis due to the kidneys' inability to compensate for decreased carbonic acid formation

Correct answer: C

Rationale: In a severe asthma attack, the child is likely to develop respiratory acidosis. This occurs due to impaired respirations, leading to the retention of carbon dioxide and the formation of carbonic acid. Choice A is incorrect as metabolic alkalosis is not expected in this situation. Choice B is incorrect as respiratory alkalosis does not align with the scenario of impaired respirations in severe asthma attacks. Choice D is also incorrect as it describes metabolic acidosis, which is not typically associated with severe asthma attacks.

2. What factor predisposes the urinary tract to infection in children?

• A. increased fluid intake
• B. short urethra in young girls
• C. prostatic secretions in males
• D. frequent emptying of the bladder

Correct answer: B

Rationale: The short urethra in young girls is a significant factor that predisposes them to urinary tract infections. Girls have a shorter urethra than boys, making it easier for bacteria to travel up the urinary tract, leading to infections. Increased fluid intake (Choice A) is actually a preventive measure as it helps flush out bacteria from the urinary tract. Prostatic secretions in males (Choice C) do not predispose the urinary tract to infection in children. Frequent emptying of the bladder (Choice D) is also a good practice to prevent urinary tract infections by reducing the chances of bacterial growth in the urinary tract.

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. The nurse is assessing an infant and notes that the infant's urine has a mousy or musty odor. What would the nurse suspect?

• A. Maple syrup urine disease
• B. Tyrosinemia
• C. Phenylketonuria
• D. Trimethylaminuria

Correct answer: C

Rationale: The correct answer is C: Phenylketonuria (PKU). PKU is suggested by a mousy or musty odor of the urine, which is caused by the inability to metabolize phenylalanine. Choice A, Maple syrup urine disease, is characterized by a sweet-smelling urine. Choice B, Tyrosinemia, typically presents with cabbage-like odor in the urine. Choice D, Trimethylaminuria, is associated with a fishy odor in the urine, breath, and sweat.

5. A nurse is providing care to a child with a diagnosis of bronchiolitis. What is the priority nursing intervention?

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

Correct answer: B

Rationale: The correct answer is providing respiratory therapy. In bronchiolitis, the priority is to maintain airway patency through interventions such as suctioning, positioning, and oxygen therapy. While bronchodilators may be used in some cases, they are not the initial priority. Monitoring oxygen saturation is important but comes after ensuring airway patency. Encouraging fluid intake is essential for hydration but is not the priority over maintaining a patent airway.

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