An 18-month-old child presents with fever, nasal flaring, intercostal retractions, and a respiratory rate of 50 bpm. What is the most appropriate nursing diagnosis?
Correct Answer: B
Rationale: The most appropriate nursing diagnosis for the 18-month-old child presenting with fever, nasal flaring, intercostal retractions, and a respiratory rate of 50 bpm is 'Ineffective breathing pattern.' These symptoms collectively indicate respiratory distress, which aligns with the nursing diagnosis of ineffective breathing pattern. Nasal flaring, intercostal retractions, and an increased respiratory rate are signs of respiratory distress in pediatric patients, suggesting the need for immediate intervention to address the underlying breathing difficulties.