Nursing Elites

1. The nurse is testing an infant's visual acuity. By which age should the infant be able to fix on and follow a target?

• A. 1 month
• B. 1 to 2 months
• C. 3 to 4 months
• D. 6 months

Correct answer: C

Rationale: By 3 to 4 months of age, an infant should be able to fix on and follow a target, indicating proper visual development.

2. 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.

3. An infant with short bowel syndrome is receiving total parenteral nutrition (TPN). The practitioner has added continuous enteral feedings through a gastrostomy tube. The nurse recognizes this as important for which reason?

• A. Wean the infant from TPN gradually
• B. Stimulate adaptation of the small intestine
• C. Provide additional nutrients that cannot be included in the TPN
• D. Offer parents encouragement that the child is close to discharge

Correct answer: B

Rationale: Continuous enteral feedings help stimulate the small intestine's adaptation in short bowel syndrome, promoting better nutrient absorption and eventually reducing reliance on TPN. This approach is crucial for long-term management and improving the child's prognosis. Choice A is incorrect because weaning off TPN typically occurs gradually over time, not the next day. Choice C is incorrect because TPN can be adjusted to provide necessary nutrients, and enteral feedings are mainly used to stimulate intestinal function. Choice D is incorrect as the addition of enteral feedings does not necessarily indicate imminent discharge; it primarily focuses on enhancing intestinal adaptation and reducing reliance on TPN.

4. The clinic nurse is teaching parents about physiologic anemia that occurs in infants. What statement should the nurse include about the cause of physiologic anemia?

• A. Maternally derived iron stores are depleted in the first 2 months.
• B. Fetal hemoglobin results in a shortened survival of red blood cells.
• C. The production of adult hemoglobin decreases in the first year of life.
• D. Low levels of fetal hemoglobin depress the production of erythropoietin.

Correct answer: B

Rationale: Physiologic anemia is caused by the transition from fetal to adult hemoglobin, with fetal hemoglobin having a shorter lifespan, leading to a temporary decrease in red blood cells.

5. The nurse is caring for a child with hypernatremia. The nurse evaluates the child for which signs and symptoms of hypernatremia? (Select all that apply.)

• A. All below
• B. Lethargy
• C. Oliguria
• D. Intense thirst

Correct answer: A

Rationale: Hypernatremia typically presents with lethargy, oliguria, and intense thirst due to the body's attempt to conserve water. Apathy can also occur, but lethargy and thirst are more consistent indicators.

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