SOFA score

Overview
The Sequential Organ Failure Assessment score, or just SOFA score, is used to track a patient's status during the stay in an intensive care unit (ICU). It is one of several ICU scoring systems.

The SOFA score is a scoring system to determine the extent of a person's organ function or rate of failure. The score is based on six different scores, one each for the respiratory, cardiovascular, hepatic, coagulation, renal and neurological systems.

Respiratory System
PaO2/FiO2 (mmHg), SOFA score

< 400, 1

< 300, 2

< 200 and mechanically ventilated, 3

< 100 and mechanically ventilated, 4

Nervous System
Glasgow coma score, SOFA score

13 – 14, 1

10 – 12, 2

6 – 9, 3

< 6, 4

Cardio Vascular System
Mean Arterial Pressure OR administration of vasopressors required, SOFA score

MAP < 70 mm/Hg, 1

dop <= 5 or dob (any dose), 2

dop > 5 OR epi <= 0.1 OR nor <= 0.1, 3

dop > 15 OR epi > 0.1 OR nor > 0.1, 4

(vasopressor drug doses are in mcg/kg/min)

Liver
Bilirubin (mg/dl), SOFA score

1.2 – 1.9, 1

2.0 – 5.9, 2

6.0 – 11.9, 3

> 12.0,	4

Coagulation
Platelets×103/mcl, SOFA score

< 150, 1

< 100, 2

< 50, 3

< 20, 4

Renal System
Creatinine (mg/dl) (or urine output), SOFA score

1.2 – 1.9, 1

2.0 – 3.4, 2

3.5 – 4.9 (or < 500 ml/d), 3

> 5.0 (or < 200 ml/d), 4