Bronchiolitis presents similarly to which chronic condition?

• A. Bronchitis
• B. Asthma
• C. Pneumonia
• D. Epiglottitis

Answer: (B)

Bronchiolitis and asthma share the same challenge: obstruction of the small airways leading to wheezing and breathing difficulty. In bronchiolitis, a viral infection—most commonly RSV—causes inflammation and mucus plugging in the bronchioles of infants. That inflammation narrows the tiny airways, producing expiratory wheeze, chest tightness-like feeling, and tachypnea, which are very similar to an asthma flare where bronchospasm and airway inflammation tighten the airways. Because both conditions reduce airway caliber and create wheezing, the presentation can look alike, especially in young children who have never had wheezing before.

Other options don’t fit the same pattern as well. Bronchitis involves inflammation of larger airways and often a productive cough; pneumonia typically presents with fever and localized signs like crackles or a single lung involvement on exam or imaging; epiglottitis presents with drooling, severe sore throat, muffled voice, and often marked inspiratory distress with stridor, not a wheezy, lower-airway process.

So the best match is asthma, given the shared feature of lower airway obstruction causing wheezing.