| Flap 1 | Flap 2 |
| Viral infection | Croup + Bronchiolitis |
| Abrupt and rapidly progressive onset | Epiglottitis |
| Classic presentation is open mouth, protruding tongue, and drooling | Epiglottitis |
| Hoarseness and/or “barky” cough | Croup |
| The child is often agitated and lacks a spontaneous cough | Epiglottitis |
| Affects the larynx, trachea, and bronchi | Croup |
| High humidity with cool mist oxygen therapy provides relief for most children | Croup |
| Has an immunization | Epiglottitis |
| Worse at night | Croup |
| Obstructive inflammatory process that occurs between ages 3 and 7 | Epiglottitis |
| Caused by RSV | Bronchiolitis |
| Decreased mucociliary clearance | Bronchiolitis |
| Targets Premature Infants | Bronchiolitis |
| Chest Xray shows hyperinflation | Bronchiolitis |
| The antiviral medication: Ribavirin is administered | Bronchiolitis |
