Croup classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Luke Rusowicz-Orazem, B.S.

Classification of Croup

Croup is classified by severity of symptoms through the Westley score of assessing croup severity, demonstrated in the table below:

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

The score is aggregated into a qualitative croup classification:

Classification	{{fontcolor|#FFF|Score}	Features
Classification	Mild	Moderate	Severe	Respiratory failure
Score	≤2	3-5	6-11	≥12
Features	Characteristic barking cough and hoarseness	Cough, hoarseness, and stridor	Cough, hoarseness, stridor, and visible chest indrawing	Failure of respiratory system