Nursing Elites

1. Which pediatric disorder is associated with a 'boot-shaped' heart on a chest x-ray?

• A. Tetralogy of Fallot
• B. Transposition of the great arteries
• C. Coarctation of the aorta
• D. Ventricular septal defect

Correct answer: A

Rationale: The correct answer is A: Tetralogy of Fallot. Tetralogy of Fallot is often associated with a 'boot-shaped' heart appearance on a chest x-ray due to the characteristic heart anatomy in this condition. This appearance is caused by the combination of pulmonary stenosis, overriding aorta, ventricular septal defect, and right ventricular hypertrophy. Choice B, Transposition of the great arteries, is incorrect because it presents with a 'egg-on-a-string' appearance on x-ray due to the abnormal position of the aorta and pulmonary artery. Choice C, Coarctation of the aorta, typically presents with rib notching on x-ray. Choice D, Ventricular septal defect, does not produce the 'boot-shaped' heart appearance seen in Tetralogy of Fallot.

2. An infant has been diagnosed with failure to thrive (FTT) classified according to the pathophysiology of defective utilization. The nurse understands that the reason for the FTT is most likely related to what?

• A. Cystic fibrosis
• B. Hyperthyroidism
• C. Congenital infection
• D. Breastfeeding problems

Correct answer: C

Rationale: FTT classified as defective utilization is often related to conditions like congenital infections, which interfere with the body's ability to effectively use nutrients. Conditions like cystic fibrosis and hyperthyroidism can also contribute to FTT but are categorized differently

3. The parents of a child with sickle cell anemia ask why their child did not have a sickle cell crisis until he was approximately 6 months old. How should the nurse respond?

• A. Your child probably had a crisis, and you were unaware of the symptoms.
• B. Are you sure your child has sickle cell anemia and not sickle cell trait?
• C. Affected children can be asymptomatic in early infancy because of high levels of fetal hemoglobin that inhibit sickling.
• D. Have you asked your doctor about this yet?

Correct answer: C

Rationale: The correct answer is C. Fetal hemoglobin (HbF) is present in high levels during early infancy, inhibiting sickling unlike adult hemoglobin (HbS). As the levels of HbF decrease and HbS increases, the risk of sickling and crises becomes more pronounced, typically after 6 months of age. Choice A is incorrect because it assumes the crisis went unnoticed, which is not supported by medical knowledge. Choice B is incorrect as it questions the child's diagnosis rather than explaining the phenomenon of delayed crises. Choice D is incorrect as it does not provide the parents with the necessary information regarding their query.

4. What may be a clinical manifestation of failure to thrive (FTT) in a 13-month-old include?

• A. Irregularity in activities of daily living
• B. Preferring solid food to milk or formula
• C. Weight that is at or below the 10th percentile
• D. Appropriate achievement of developmental landmarks

Correct answer: C

Rationale: FTT is characterized by weight that falls below the 10th percentile, often accompanied by delayed developmental milestones and poor feeding habits. Regularity in activities and preference for solid food over milk or formula are less commonly associated with FTT.

5. Several types of seizures can occur in neonates. What is characteristic of clonic seizures?

• A. Apnea
• B. Tremors
• C. Extension of all four limbs
• D. Jerking that cannot be stopped by flexion of the affected limb

Correct answer: D

Rationale: Clonic seizures are characterized by slow, rhythmic, jerking movements that cannot be stopped by flexion of the affected limb. Therefore, the correct characteristic of clonic seizures is option D. Option A, apnea, is not characteristic of clonic seizures. Option B, tremors, does not describe clonic seizures accurately. Option C, extension of all four limbs, is not a typical feature of clonic seizures but rather seen in tonic seizures.

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