Two of the following - subcostal, intercostal, or substernal retractions - OR nasal flaring in an infant younger than 1 year: 2 points.
Three of the following - subcostal, intercostal, substernal, suprasternal, or supraclavicular retractions - OR nasal flaring or head bobbing in an infant younger than 1 year: 3 points.
Dyspnea
Normal feeding and normal activity: 0 points.
One of the following - difficulty feeding, less cry, or agitated and inconsolable: 1 point.
Two of the following - difficulty feeding, less cry, or agitated and inconsolable: 2 points.
Stops feeding, no activity, no vocalization, OR drowsy and confused: 3 points.
Wheezing
No wheezing and normal breathing: 0 points.
End-expiration only: 1 point.
Entire expiratory phase: 2 points.
Inspiration and expiration, diminished breath sounds, or both: 3 points.