SOFA Score Calculator

Sequential Organ Failure Assessment for ICU patients

SOFA Score Assessment

SOFA score trends over ICU stay are prognostically significant

0Respiratory System

mmHg
Normal: >400 mmHg | Severe: <100 mmHg with ventilation

0Coagulation System

×10³/μL
Normal: >150 | Critical: ≤20

0Hepatic System

mg/dL
Normal: <1.2 mg/dL | Critical: >12 mg/dL

0Neurological System

Normal: 15 | Critical: <6 | Calculate GCS

1Cardiovascular System

mmHg
Normal: MAP ≥70 mmHg, no vasopressors | Critical: High-dose vasopressors

0Renal System

mg/dL
mL/day
Normal: Creatinine <1.2 mg/dL | Critical: Creatinine >5 mg/dL or urine <200 mL/day

SOFA Score Results

1
Total SOFA Score
(Maximum: 24)
Respiratory:0/4
Coagulation:0/4
Hepatic:0/4
Neurological:0/4
Cardiovascular:1/4
Renal:0/4
Low Risk
Mild organ dysfunction
Mortality: &lt;15%

Medical Disclaimer

This SOFA score calculator is for educational purposes only and should not replace clinical judgment. Organ failure assessment requires comprehensive clinical evaluation by qualified healthcare professionals. Always consult with intensivists and ICU specialists for proper patient management.

SOFA Score Interpretation

0-6Low mortality risk
7-9Moderate risk
10-12High risk
≥13Very high risk

Sepsis Definition: SOFA ≥2 with suspected/confirmed infection

Clinical Applications

🏥

ICU mortality prediction and risk stratification

📊

Sequential assessment of organ dysfunction

🔬

Sepsis diagnosis and monitoring tool

📈

Research and clinical trial stratification

Early identification of deteriorating patients

Understanding the SOFA Score

What is SOFA?

The Sequential Organ Failure Assessment (SOFA) score was developed in 1994 to evaluate organ dysfunction in critically ill patients. Originally designed for sepsis assessment, it's now widely used for general ICU mortality prediction and organ failure monitoring.

Clinical Significance

  • An increase ≥2 points during first 48 hours indicates ≥50% mortality
  • Daily assessment provides prognostic information
  • Used in sepsis-3 definitions (SOFA ≥2 with infection)
  • Helps guide resource allocation and treatment decisions

Organ Systems Assessment

Respiratory
PaO₂/FiO₂ ratio with ventilation status
Coagulation
Platelet count assessment
Hepatic
Total bilirubin levels
Neurological
Glasgow Coma Scale score
Cardiovascular
MAP and vasopressor requirements
Renal
Creatinine and urine output