TABLE 1.

Thoracic radiographic severity scoring system (TRSS)

Score	Interpretation	Description
1	Normal	No pulmonary radiographic abnormalities detected
2	Equivocal	Very mild pulmonary opacification where differentiation between mild pathological consolidation, atelectasis, or scar tissue is not possible. Mild bronchial thickening with a cranioventral distribution in the absence of pulmonary consolidation may also be included in this category
3	Mild	Pulmonary consolidation involving less than 50% of 1 lobe
4	Moderate	Pulmonary consolidation involving greater than 50% consolidation of 1 lung lobe or less than 50% consolidation of multiple lung lobes
5	Severe	Greater than 50% consolidation of multiple lung lobes.