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. Author manuscript; available in PMC: 2015 Jan 17.

Published in final edited form as: J Trauma Acute Care Surg. 2012 Aug;73(2):343–350. doi: 10.1097/TA.0b013e31825a785a

TABLE 2.

Histologic Grading for Lung Injury Scores

Extent of Lung Injury⁹	Degree of Injury	Points
Inflammatory cells/HPF	<5	0
	6–10	1
	11–15	2
	16–20	3
	>20	4
Interstitial edema	None	0
	Minimal	1
	Moderate	2
	Severe	3
Pulmonary edema	<5%	0
	5–25%	1
	>25%	2
Alveolar integrity	Normal	0
	Abnormal moderate	1
	Abnormal severe	2

HPF, high-power field.