Which condition presents with a barking cough and inspiratory stridor in a viral upper airway illness?

• A. Croup
• B. Epiglottitis
• C. Pneumonia
• D. Shingles

Answer: (A)

Recognizing this pattern of upper airway inflammation in children is key. A barking cough with inspiratory stridor during a viral illness points to croup, or laryngotracheobronchitis. The virus inflames the larynx and the subglottic space just below the vocal cords, causing swelling that narrows the airway. Because the narrowest segment is in the upper airway, air has to pass through a tight passage during inspiration, producing the characteristic inspiratory stridor. The inflamed larynx/trachea also gives the harsh, bark-like cough.

This presentation fits a viral illness most often seen in toddlers, sometimes with a low-grade fever and hoarseness. In contrast, epiglottitis tends to present with sudden, severe throat pain, drooling, a toxic-looking child, and prefers a more upright or tripod position rather than a barking cough. Pneumonia usually features fever, tachypnea, and a productive cough with chest findings, not the distinct barking cough paired with inspiratory stridor from subglottic edema. Shingles would show a vesicular rash along a dermatomal pattern and is not an acute upper airway illness.