Nursing Elites

1. The nurse notes that a child has lost 3.6 kg (8 lb) after 4 days of hospitalization for acute glomerulonephritis. What is the most likely cause of this weight loss?

• A. Poor appetite
• B. Reduction of edema
• C. Restriction to bed rest
• D. Increased potassium intake

Correct answer: B

Rationale: The weight loss is most likely due to the reduction of edema, as glomerulonephritis often causes fluid retention that resolves with treatment, leading to significant weight loss.

2. During a routine health assessment, the nurse notes that an 8-month-old infant has a significant head lag. Which is the most appropriate action?

• A. Recheck head control at the next visit
• B. Teach the parents appropriate exercises
• C. Schedule the child for further evaluation
• D. Refer the child for further evaluation if the anterior fontanel is still open

Correct answer: C

Rationale: Significant head lag at 8 months is concerning and warrants further evaluation, as it may indicate developmental delays or neurological issues.

3. Which is the leading cause of death in infants younger than 1 year in the United States?

• A. Congenital anomalies
• B. Sudden infant death syndrome
• C. Disorders related to short gestation and low birth weight
• D. Maternal complications specific to the perinatal period

Correct answer: A

Rationale: Congenital anomalies are the leading cause of death in infants younger than 1 year in the United States.

4. What is the most common cause of bronchiolitis in infants?

• A. Adenovirus
• B. Influenza virus
• C. Respiratory syncytial virus
• D. Parainfluenza virus

Correct answer: C

Rationale: The correct answer is C, Respiratory syncytial virus (RSV). RSV is the leading cause of bronchiolitis, a common respiratory condition in infants that results in inflammation of the small airways in the lung. It is highly contagious and can cause severe respiratory distress in young children, particularly those under 2 years old. Choice A, Adenovirus, is not the most common cause of bronchiolitis in infants. Choice B, Influenza virus, may cause respiratory infections but is not the primary cause of bronchiolitis. Choice D, Parainfluenza virus, can cause croup and other upper respiratory infections but is not the main cause of bronchiolitis in infants.

5. 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.

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