Nursing Elites

1. A healthcare professional is reviewing the laboratory report of a child with tetralogy of Fallot that indicates an elevated RBC count. What does the professional identify as the cause of the polycythemia?

• A. Low tissue oxygen needs
• B. Tissue oxygen needs
• C. Diminished iron level
• D. Hypertrophic cardiac muscle

Correct answer: B

Rationale: The correct answer is B: Tissue oxygen needs. Polycythemia occurs as the body's response to chronic hypoxia by increasing RBC production to enhance oxygen delivery. In tetralogy of Fallot, a congenital heart defect, the heart's structure causes reduced oxygen levels in the blood. This chronic hypoxia stimulates the bone marrow to produce more red blood cells, leading to an elevated RBC count. Choice A is incorrect as low blood pressure is not directly related to polycythemia in this context. Choice C, diminished iron level, is not the cause of polycythemia in tetralogy of Fallot. Choice D, hypertrophic cardiac muscle, is not the primary cause of the elevated RBC count in this case.

2. What definitive diagnostic procedure does the nurse expect to be used to confirm the diagnosis of Hirschsprung disease in a 1-month-old infant?

• 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. This procedure reveals the absence of ganglion cells in the affected bowel segment, which is a hallmark of Hirschsprung disease. Colonoscopy (Choice A) is not typically used for diagnosing Hirschsprung disease due to the risk of not accurately reaching the affected segment. Multiple saline enemas (Choice C) are not used to confirm the diagnosis of Hirschsprung disease. Fiberoptic nasoenteric tube (Choice D) is not a standard diagnostic procedure for Hirschsprung disease and does not provide the necessary information to confirm the absence of ganglion cells in the affected bowel segment.

3. A parent brings a 2-month-old infant with Down syndrome to the pediatric clinic for a physical and administration of immunizations. Which clinical finding should alert the nurse to perform a further assessment?

• A. Flat occiput
• B. Small, low-set ears
• C. Circumoral cyanosis
• D. Protruding furrowed tongue

Correct answer: C

Rationale: Circumoral cyanosis should alert the nurse to perform a further assessment because it may indicate inadequate oxygenation or circulation, potentially related to cardiac or respiratory issues. Flat occiput (choice A) is a common finding in infants and is not typically concerning. Small, low-set ears (choice B) are common in Down syndrome and not specifically indicative of an acute issue requiring immediate further assessment. Protruding furrowed tongue (choice D) is also commonly seen in infants with Down syndrome and typically does not warrant immediate further assessment unless associated with other concerning signs or symptoms.

4. The parents of a 1-month-old girl with Down syndrome are being taught by the nurse on how to maintain the child's good health. Which instruction would the nurse be least likely to include?

• A. Getting cervical radiographs between 3 and 5 years of age
• B. Adhering to the special dietary needs of the child
• C. Getting an echocardiogram before 3 months of age
• D. Monitoring for symptoms of respiratory infection

Correct answer: B

Rationale: The correct answer is B. While special dietary needs may be important, they are not typically a primary concern for a 1-month-old with Down syndrome compared to monitoring for congenital issues. Getting cervical radiographs, an echocardiogram, and monitoring for respiratory infections are more crucial in the early care of a child with Down syndrome. Cervical radiographs help in assessing for atlantoaxial instability, an echocardiogram is important for detecting congenital heart defects common in Down syndrome, and monitoring for respiratory infections is vital due to the increased risk in these children.

5. A child with Duchenne muscular dystrophy is to receive prednisone as part of his treatment plan. After teaching the child's parents about this drug, which statement by the parents indicates the need for additional teaching?

• A. We should give this drug after he eats something.
• B. We need to watch carefully for possible infections.
• C. The drug should not be stopped abruptly.
• D. He might experience weight gain with this drug.

Correct answer: A

Rationale: Giving prednisone with food helps prevent gastrointestinal upset. Therefore, the correct statement is that the drug should be given after the child eats something, not before. Watching for infections is important due to prednisone's immunosuppressive effects, making choice B correct. Choice C is accurate because prednisone should be tapered off gradually to prevent withdrawal symptoms. Weight gain is a common side effect of prednisone, so choice D is also correct. The incorrect statement is choice A, as prednisone should be administered after a meal.

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