Abbreviated injury score (AIS) for bronchoscopic gradation of inhalation injury

Grade	Class	Description
0	No injury	Absence of carbonaceous deposits, erythema, edema, bronchorrhea or obstruction
1	Mild injury	Minor or patchy areas of erythema, carbonaceous deposits in proximal or distal bronchi*
2	Moderate injury	Moderate degree of erythema, carbonaceous deposits, bronchorrhea, or bronchial obstruction*
3	Severe injury	Severe inflammation with friability, copious carbonaceous deposits, bronchorrhea or obstruction*
4	Massive injury	Evidence of mucosal sloughing, necrosis, endoluminal obliteration*

*Any or a combination of the findings.

From: Endorf FW, Gamelli RL. Inhalation injury, pulmonary perturbations, and fluid resuscitation. J Burn Care Res 2007; 28:80. DOI: 10.1097/BCR.0B013E31802C889F. Copyright © 2007 American Burn Association. Reproduced with permission from Lippincott Williams & Wilkins. Unauthorized reproduction of this material is prohibited.

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Abbreviated injury score (AIS) for bronchoscopic gradation of inhalation injury