Lung Injury Prediction Score (LIPS)

Weighted checklist that stratifies a hospitalized patient's risk of developing acute lung injury / ARDS from predisposing insults and modifiers, to trigger early prevention — a risk-prediction tool, not an ARDS diagnosis.

Shock (predisposing, +2)

Aspiration (predisposing, +2)

Sepsis (predisposing, +1; also gates the diabetes −1 deduction)

Pneumonia (predisposing, +1.5)

High-risk surgery (single highest applicable category)

Emergency (non-elective) surgery (+1.5, only when a high-risk surgery category is selected)

Traumatic brain injury (+2)

Smoke inhalation (+2)

Near drowning (+2)

Lung contusion (+1.5)

Multiple fractures (+1.5)

Alcohol abuse (+1)

Obesity, BMI > 30 kg/m² (+1)

Hypoalbuminemia, albumin < 3.5 g/dL (+1)

Chemotherapy (+1)

FiO₂ > 0.35 (or supplemental O₂ > 4 L/min) (+2)

Tachypnea, respiratory rate > 30/min (+1.5)

SpO₂ < 95% (+1)

Acidosis, arterial pH < 7.35 (+1.5)

Diabetes mellitus (−1, only when sepsis is present)