Predisposing conditions | LIPS Score | Examples |
Shock | 2 | (1) Patient with history of alcohol abuse with septic shock from pneumonia requiring FiO2>0.35 Emergency room: sepsis+shock+pneumonia+alcohol abuse+FiO2>0.35 1+2+1.5+1+2=7.5 (2) Motor vehicle accident with traumatic brain injury, lung contusion and shock requiring FiO2>0.35 Traumatic brain injury+lung contusion+shock+FiO2>0.35 2+1.5+2+2=7.5 (3) Patient with history of diabetes mellitus and urosepsis with shock sepsis+shock+diabetes 1+2–1=2 |
Aspiration | 2 | |
Sepsis | 1 | |
Pneumonia | 1.5 | |
High-risk surgery* | ||
Orthopaedic spine | 1 | |
Acute abdomen | 2 | |
Cardiac | 2.5 | |
Aortic vascular | 3.5 | |
High-risk trauma | ||
Traumatic brain injury | 2 | |
Smoke inhalation | 2 | |
Near drowning | 2 | |
Lung contusion | 1.5 | |
Multiple fractures | 1.5 | |
Risk modifiers | ||
Alcohol abuse | 1 | |
Obesity (BMI>30) | 1 | |
Hypoalbuminaemia | 1 | |
Chemotherapy | 1 | |
FiO2 >0.35 (>4 L/min) | 2 | |
Tachypnoea (RR>30) | 1.5 | |
SpO2 <95% | 1 | |
Acidosis (pH<7.35) | 1.5 | |
Diabetes mellitus† | -1 |
*Add 1.5 points in case of emergency surgery.
†Only in cases of sepsis.
BMI, body mass index; RR, respiratory rate; SpO2, oxygen saturation by pulse oximetry.