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 with a diagnosis of nephrotic syndrome is being discharged. What dietary instructions should the nurse provide?

• A. Encourage a high-protein diet
• B. Avoid foods high in salt
• C. Encourage a low-sodium diet
• D. Encourage a low-protein diet

Correct answer: B

Rationale: For a child with nephrotic syndrome, it is crucial to avoid foods high in salt to manage symptoms and prevent complications. Excessive salt intake can lead to fluid retention and exacerbate edema, which are common issues in nephrotic syndrome. Encouraging a high-protein diet (Choice A) may put additional strain on the kidneys and worsen the condition. While protein restriction is sometimes needed, it is not the primary dietary concern in nephrotic syndrome. Similarly, a low-protein diet (Choice D) is not typically recommended as it may lead to malnutrition in children. Although a low-sodium diet (Choice C) may sound similar to avoiding foods high in salt, the emphasis should be on reducing salt intake specifically, rather than a generalized low-sodium approach.

3. After a discussion with the healthcare provider, the parents of an infant with patent ductus arteriosus (PDA) ask the nurse to explain once again what PDA is. How should the nurse respond?

• A. The diameter of the aorta is enlarged.
• B. The wall between the right and left ventricles is open.
• C. It is a narrowing of the entrance to the pulmonary artery.
• D. It is a connection between the pulmonary artery and the aorta.

Correct answer: D

Rationale: Patent ductus arteriosus (PDA) is an abnormal connection between the pulmonary artery and the aorta. In a fetus, the ductus arteriosus is a normal connection between these two vessels, allowing blood to bypass the lungs. However, it should close shortly after birth. When it remains open (patent), it leads to PDA. Choices A, B, and C do not accurately describe PDA. Choice A describes an enlarged aorta, choice B describes a ventricular septal defect, and choice C describes pulmonary stenosis, which are different cardiac conditions.

4. An infant who has had diarrhea for 3 days is admitted in a lethargic state and is breathing rapidly. The parent states that the baby has been ingesting formula, although not as much as usual, and cannot understand the sudden change. What explanation should the nurse give the parent?

• A. Cellular metabolism is unstable in young children.
• B. The proportion of water in the body is less than in adults.
• C. Renal function is immature in children until they reach school age.
• D. The extracellular fluid requirement per unit of body weight is greater than in adults.

Correct answer: D

Rationale: The correct answer is D. Infants have a higher extracellular fluid requirement per unit of body weight, making them more susceptible to dehydration and electrolyte imbalances during illnesses such as diarrhea. Choice A is incorrect as cellular metabolism instability does not directly relate to the infant's condition described. Choice B is inaccurate as the proportion of water in the body is not the primary issue causing the infant's symptoms. Choice C is incorrect as renal function being immature does not explain the sudden change in the infant's health status; it is more related to fluid balance and dehydration.

5. A child with sickle cell anemia is admitted to the hospital during a vaso-occlusive crisis. What is the most important intervention for the nurse to implement?

• A. Administering oxygen
• B. Ensuring adequate hydration
• C. Monitoring vital signs
• D. Administering pain medication

Correct answer: B

Rationale: During a vaso-occlusive crisis in sickle cell anemia, ensuring adequate hydration is crucial because it helps to reduce the viscosity of the blood and prevent further sickling of the cells. Administering oxygen may be necessary in some cases to improve tissue oxygenation, but hydration is the priority to prevent complications. Monitoring vital signs is important, but hydration takes precedence during a vaso-occlusive crisis. Administering pain medication is important for pain management but does not address the underlying issue of vaso-occlusion.

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