Restrictive Lung Disease USMLE Step 1 Practice Question
A 30-week gestational age male infant born to a mother with poorly controlled diabetes develops respiratory distress within minutes of birth. Vital signs: HR 168, RR 62, BP 58/32, SpO2 88% on room air. Physical examination reveals nasal flaring, grunting, and intercostal retractions. Chest radiograph demonstrates diffuse ground-glass opacities with air bronchograms. Surfactant levels are decreased. He has no meconium staining. Which diagnosis best explains these findings?
Answer choices
- ANeonatal respiratory distress syndromeCorrect answer
- BAcute respiratory distress syndrome
- CPneumocystis jirovecii pneumonia
- DSpontaneous pneumothorax
- ECommunity acquired pneumonia
- FTransient tachypnea of the newborn (TTN)
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