SOFA Score
Encyclopedia
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.
The score tables below only describe points-giving conditions. In cases where the physiological parameters do not match any row, zero points are given. In cases where the physiological parameters match more than one row, the row with most points is picked.
(vasopressor drug doses are in mcg/kg/min)
Intensive Care Unit
thumb|220px|ICU roomAn intensive-care unit , critical-care unit , intensive-therapy unit/intensive-treatment unit is a specialized department in a hospital that provides intensive-care medicine...
(ICU). It is one of several ICU scoring systems
ICU scoring systems
-Adult scoring systems:* APACHE II was designed to provide a morbidity score for a patient. It is useful to decide what kind of treatment or medicine is given...
.
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
Respiratory system
The respiratory system is the anatomical system of an organism that introduces respiratory gases to the interior and performs gas exchange. In humans and other mammals, the anatomical features of the respiratory system include airways, lungs, and the respiratory muscles...
, cardiovascular, hepatic, coagulation
Coagulation
Coagulation is a complex process by which blood forms clots. It is an important part of hemostasis, the cessation of blood loss from a damaged vessel, wherein a damaged blood vessel wall is covered by a platelet and fibrin-containing clot to stop bleeding and begin repair of the damaged vessel...
, renal and neurological systems.
The score tables below only describe points-giving conditions. In cases where the physiological parameters do not match any row, zero points are given. In cases where the physiological parameters match more than one row, the row with most points is picked.
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 scale Glasgow Coma Scale Glasgow Coma Scale or GCS is a neurological scale that aims to give a reliable, objective way of recording the conscious state of a person for initial as well as subsequent assessment... | 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) [mmol/L] | SOFA score |
|---|---|
| 1.2 – 1.9 [>20.5 - 32.5] | 1 |
| 2.0 – 5.9 [34.2 - 100.9] | 2 |
| 6.0 – 11.9 [102.6 - 203] | 3 |
| > 12.0 [>205] | 4 |
Coagulation
| Platelets×103/mcl | SOFA score |
|---|---|
| < 150 | 1 |
| < 100 | 2 |
| < 50 | 3 |
| < 20 | 4 |
Renal System
| Creatinine (mg/dl) [mmol/L] (or urine output) | SOFA score |
|---|---|
| 1.2 – 1.9 [92 - 145] | 1 |
| 2.0 – 3.4 [152 - 259] | 2 |
| 3.5 – 4.9 [267 - 374] (or < 500 ml/d) | 3 |
| > 5.0 [>382] (or < 200 ml/d) | 4 |
External links
- Janssens U, et al. Value of SOFA (Sequential Organ Failure Assessment) score and total maximum SOFA score in 812 patients with acute cardiovascular disorders [abstract]. Crit Care 2001;5(Suppl 1):P225.