Table 8.

Westley croup score

Stridor	None: 0
	With agitation: +1
	At rest: +2
Chest wall retractions	None: 0
	Mild: +1
	Moderate: +2
	Severe: +3
Cyanosis	None: 0
	With agitation: +4
	At rest: +5
Level of consciousness	Normal: 0
	Disoriented: +5
Air entry	Normal: 0
	Decreased: +1
	Markedly decreased: +2

Mild croup (WCS ≤2): occasionally barky cough, no audible stridor at rest, and no to mild suprasternal and/or intercostal indrawing (retractions of the skin of the chest wall)

Moderate croup (WCS 3-5): frequent barky cough, easily audible stridor at rest, and suprasternal and sternal wall retractions at rest, but no or little distress or agitation

Severe croup (WCS 6-11): frequent barky cough, prominent inspiratory and occasionally expiratory stridor, marked sternal and wall retractions, and significant distress and agitation

Impending respiratory failure (WCS >11): barky cough, audible stridor at rest, sternal and wall retractions, lethargy or decreased level of consciousness and often dusky appearance without supplemental oxygen