问题
单项选择题
A 23-month-old child is brought to the emergency department with suspected croup. Which assessment finding reflects increasing respiratory distress（）
A. Intercostal retractions.
B. Bradycardia.
C. Decreased level of consciousness.
D. Flushed skin.
答案
参考答案：A
解析：
Clinical manifestations of respiratory distress include intercostal retractions, tachypnea, tachycardia, restlessness, dyspnea, and cyanosis.