Nursing Elites

1. How is the diagnosis of Hirschsprung disease confirmed in a 1-month-old infant admitted to the pediatric unit?

• A. Colonoscopy
• B. Rectal biopsy
• C. Multiple saline enemas
• D. Fiberoptic nasoenteric tube

Correct answer: B

Rationale: Rectal biopsy is the definitive diagnostic procedure for Hirschsprung disease in infants. It confirms the absence of ganglion cells in the affected bowel segment, which is characteristic of Hirschsprung disease. Colonoscopy (Choice A) is not typically used for confirmation as it may not provide a definitive result. Multiple saline enemas (Choice C) are utilized in the treatment of meconium ileus, a complication of cystic fibrosis, and not in the diagnosis of Hirschsprung disease. Fiberoptic nasoenteric tube (Choice D) is not a diagnostic tool for Hirschsprung disease; it is commonly used for gastrointestinal decompression or feeding purposes but does not confirm the diagnosis.

2. 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 caused by decreased acid metabolites production
• B. respiratory alkalosis caused by decreased respiratory rate and carbon dioxide retention
• C. respiratory acidosis caused by impaired respirations and increased carbonic acid formation
• D. metabolic acidosis caused by the kidneys' inability to compensate for increased carbonic acid production

Correct answer: C

Rationale: In a severe asthma attack, the child is likely to develop respiratory acidosis due to impaired respirations leading to the retention of carbon dioxide, which combines with water to form carbonic acid. This results in the pH imbalance characterized by an excess of carbonic acid. Choices A, B, and D are incorrect. Metabolic alkalosis (Choice A) is not typically associated with severe asthma attacks; respiratory alkalosis (Choice B) would involve a decrease, not an increase, in carbon dioxide levels; and metabolic acidosis (Choice D) is not the primary acid-base imbalance seen in severe asthma attacks.

3. A healthcare provider is assessing a child with suspected Kawasaki disease. What clinical manifestation is the healthcare provider likely to observe?

• A. Generalized rash
• B. Peeling skin on the hands and feet
• C. High fever
• D. Low-grade fever

Correct answer: B

Rationale: Peeling skin on the hands and feet is a characteristic clinical manifestation of Kawasaki disease, known as desquamation. This occurs during the convalescent phase of the illness. While Kawasaki disease is associated with a high fever, which is a common early sign, and can also present with other symptoms like conjunctivitis, mucous membrane changes, and lymphadenopathy, the peeling skin on the hands and feet is a classic feature that distinguishes Kawasaki disease from other conditions. Generalized rash is not a specific hallmark of Kawasaki disease, and low-grade fever is not typically associated with this condition. Therefore, the correct answer is B, peeling skin on the hands and feet, which is a key feature of Kawasaki disease.

4. A child with a diagnosis of celiac disease is admitted to the hospital. What dietary restriction should the nurse teach the parents?

• A. Avoid dairy products
• B. Avoid gluten
• C. Avoid high-fat foods
• D. Avoid foods high in sugar

Correct answer: B

Rationale: The correct answer is B: 'Avoid gluten.' Children with celiac disease must follow a gluten-free diet to prevent symptoms and intestinal damage. Gluten is a protein found in wheat, barley, and rye, which triggers an immune response in individuals with celiac disease. Choices A, C, and D are incorrect because while some individuals with celiac disease may also have lactose intolerance or may need to manage fat or sugar intake for overall health, the primary dietary restriction for celiac disease is avoiding gluten to maintain gastrointestinal health.

5. Which observation made of the exposed abdomen is most indicative of pyloric stenosis?

• A. abdominal rigidity
• B. substernal retraction
• C. palpable olive-like mass
• D. marked distention of lower abdomen

Correct answer: C

Rationale: The correct answer is C: palpable olive-like mass. In pyloric stenosis, a palpable olive-like mass can often be felt in the abdomen due to the hypertrophied pyloric muscle. This mass is a key characteristic finding in infants with pyloric stenosis. Choice A, abdominal rigidity, is more commonly associated with conditions like peritonitis. Choice B, substernal retraction, is not typically seen in pyloric stenosis but can be a sign of respiratory distress. Choice D, marked distention of the lower abdomen, is not specific to pyloric stenosis and can be present in various abdominal conditions.

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