SOFA 2 Score
Updated version (2025) of the Sequential Organ Failure Assessment for predicting mortality in patients with suspected infection.
This calculator is a support tool intended exclusively for health professionals. It does not replace clinical judgment. The final decision regarding diagnosis and treatment is the sole responsibility of the professional.
At its present stage of development, SOFA-2 lacks extensive external validation and formal guideline endorsement. It is intended to complement, rather than replace, validated clinical tools like the original SOFA.
Patient Data
Result
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About this Calculator 💡
The SOFA Score (Sequential Organ Failure Assessment) is a fundamental tool in intensive care used to track the status of a patient's organ function or rate of failure during their ICU stay. Primarily used in cases of sepsis, it evaluates six organ systems: respiratory, cardiovascular, hepatic, coagulation, renal, and neurological. Each system is scored from 0 to 4, with a total score ranging up to 24. Higher scores correlate with increased mortality risk. The clinical value of the SOFA score lies in its ability to monitor disease progression and the effectiveness of medical interventions over time, rather than providing a single static diagnosis.
Reference Values
- An increase in scores reflects a higher degree of multi-organ dysfunction, which is linked to poorer survival rates among critically ill patients.
Formula
Sum of points from 6 organ systems (0-4 points each).
Reference
Seymour CW, et al. Update to the Sequential Organ Failure Assessment Score (SOFA-2). JAMA. 2025; doi:10.1001/jama.2025.20516