Nursing Elites

1. The parent asks when the soft area in the infant's head will go away. What is the best response by the nurse?

• A. The area is called the anterior fontanel (fontanelle) and typically closes anytime up to 18 months of age.
• B. The area is called a fontanel (fontanelle). They remain open to allow for rapid brain growth in the first months of life.
• C. The soft spots may stay open until your infant is 2 or 3 years old.
• D. Soft spots on the infant's head should have closed by now.

Correct answer: A

Rationale: The best response by the nurse is A, as the anterior fontanel typically closes between 12-18 months of age, allowing for brain growth during infancy. Choice B is incorrect because it does not provide a specific timeframe for the closure of the fontanel. Choice C is incorrect as it suggests a later closure timeframe than usual. Choice D is incorrect as it states that the soft spots should have closed already, which is inaccurate for a 6-month-old infant.

2. What physiologic state(s) produces the clinical manifestations of nervous system stimulation and excitement, such as overexcitability, nervousness, and tetany?

• A. Metabolic acidosis
• B. Respiratory alkalosis
• C. Metabolic and respiratory acidosis
• D. Metabolic and respiratory alkalosis

Correct answer: D

Rationale: Both metabolic and respiratory alkalosis can cause overexcitability and nervous system stimulation due to a decrease in ionized calcium levels, which can cause symptoms such as tetany and paresthesias. Acidosis typically has the opposite effect, leading to depression of the nervous system.

3. What is the number one leading cause of death in children over 1 year of age?

• A. Congenital anomalies
• B. Homicide
• C. Suicide
• D. Accidents

Correct answer: D

Rationale: Accidents, such as motor vehicle accidents, drowning, and falls, are the primary cause of death in children over 1 year of age. While congenital anomalies can be a significant cause of mortality in infants, they are less common in older children. Homicide and suicide are serious issues but are not as prevalent as accidents in causing death among children over 1 year of age.

4. 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.

5. What is the required number of milliliters of fluid needed per day for a 14-kg child?

• A. 800
• B. 1000
• C. 1200
• D. 1400

Correct answer: D

Rationale: The fluid requirement for a 14-kg child is approximately 100 mL/kg/day, so for a 14-kg child, the requirement is around 1400 mL/day.

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