What is the likely diagnosis of an 18-month-old patient in moderate respiratory distress with a 1-week history of a low-grade fever and chills, barking cough, and an AP chest radiograph which shows a steeple sign?
a. Pulmonary interstitial emphysema
b. Bronchopulmonary dysplasia
c. Epiglottis
d. Croup
ANS: D
A child typically has slow, progressive inspiratory and expiratory stridor and a barking coup. As the disease progresses, dyspnea, cyanosis, exhaustion, and agitation occur.
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