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 is a common finding that the nurse can identify in most children with symptomatic cardiac malformations?

• A. Mental retardation
• B. Inherited genetic factors
• C. Delayed physical growth
• D. Clubbing of the fingertips

Correct answer: C

Rationale: Delayed physical growth is a common finding in most children with symptomatic cardiac malformations. This occurs due to inadequate oxygenation and nutrient supply to tissues as a result of the cardiac defect. Mental retardation (Choice A) is not typically associated with cardiac malformations unless there are complications affecting brain function. Inherited genetic factors (Choice B) may contribute to the development of cardiac malformations but are not a direct common finding in affected children. Clubbing of the fingertips (Choice D) is more commonly associated with chronic respiratory or cardiac conditions, not specifically cardiac malformations in children.

3. After surgery to correct hypertrophic pyloric stenosis (HPS) in a 3-week-old infant who had been formula-fed, which postoperative feeding order is appropriate?

• A. Thickened formula 24 hours after surgery
• B. Withholding feedings for the first 24 hours
• C. Regular formula feeding within 24 hours after surgery
• D. Additional glucose feedings as desired after the first 24 hours

Correct answer: C

Rationale: After surgery for hypertrophic pyloric stenosis (HPS), it is appropriate to resume regular formula feeding within 24 hours postoperatively to promote recovery. Choice A, thickened formula after surgery, may be too heavy for the infant's digestive system at this early stage. Withholding feedings for the first 24 hours (Choice B) is not recommended as early feeding helps with recovery. Additional glucose feedings (Choice D) are not necessary and may not provide the balanced nutrition required after surgery.

4. During postoperative care for a child who has had a tonsillectomy, what is an important nursing intervention?

• A. Encouraging deep breathing exercises
• B. Encouraging the child to eat
• C. Administering antibiotics
• D. Applying ice to the throat

Correct answer: C

Rationale: Administering antibiotics is crucial post-tonsillectomy to prevent infection, as the surgical site is susceptible to bacterial growth. Encouraging deep breathing exercises can also be beneficial for lung expansion and preventing respiratory complications. However, administering antibiotics takes precedence as it directly addresses the risk of infection. Encouraging the child to eat may not be appropriate immediately post-tonsillectomy due to the risk of throat irritation and potential discomfort. Applying ice to the throat is typically not recommended after a tonsillectomy, as it may constrict blood vessels and hinder the healing process.

5. A premature infant with respiratory distress syndrome (RDS) receives artificial surfactant. How does the nurse explain surfactant therapy to the parents?

• A. Surfactant improves the ability of your baby’s lungs to exchange oxygen and carbon dioxide.
• B. The drug prevents your baby from requiring excessive sedation.
• C. Surfactant is used to reduce episodes of periodic apnea.
• D. Your baby needs this medication to combat a potential respiratory tract infection.

Correct answer: A

Rationale: The correct answer is A. Surfactant therapy is explained to parents as a treatment that enhances the lungs' ability to exchange oxygen and carbon dioxide. This is essential for premature infants with respiratory distress syndrome (RDS) as it helps improve their respiratory function. Choices B, C, and D are incorrect because surfactant therapy primarily focuses on addressing lung function and is not related to sedation, apnea reduction, or fighting respiratory tract infections.

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