SOFA Score Calculator

Form

Results

SOFA Score

0

1

What is SOFA Score?

SOFA summarizes dysfunction across six organ-system assessments.

2

How to Use This Calculator

  1. Enter or select Respiratory system: PaO2/FiO2, Coagulation: Platelets, Liver: Bilirubin, Cardiovascular system, Central nervous system: Glasgow Coma Scale score. Complete any remaining fields required by your chosen method.
  2. Check the unit beside each measurement. For a percentage or rate, use the scale and time period stated in the form.
  3. Choose Calculate, then compare the output with the formula and example below. If you change a value or option, calculate again to update the result.
3

Formula Used

Total = respiratory+coagulation+liver+cardiovascular+neurologic+renal subscores, each 0–4.
4

Variables Explained

InputWhat it means
Respiratory system: PaO2/FiO2Use the observed finding or laboratory value for this criterion, following the definition shown in the form.
Coagulation: PlateletsUse the observed finding or laboratory value for this criterion, following the definition shown in the form.
Liver: BilirubinUse the observed finding or laboratory value for this criterion, following the definition shown in the form.
Cardiovascular systemUse the observed finding or laboratory value for this criterion, following the definition shown in the form.
Central nervous system: Glasgow Coma Scale scoreUse the observed finding or laboratory value for this criterion, following the definition shown in the form.
Kidneys: Creatinine lv / Urine outputThe laboratory creatinine concentration; mg/dL and µmol/L need different numeric values.
5

Worked Example

Subscores 1, 0, 2, 0, 1 and 0 give a total of 4.

6

Why Use This Calculator?

Use the calculation to make the method and its inputs easier to check with a healthcare professional. Its meaning depends on the clinical setting and on whether the underlying method is appropriate for that person.

7

Common Mistakes

    • Timing, organ support and missing data affect scoring; SOFA is not a stand-alone diagnosis.
8

Frequently Asked Questions

Is this result a diagnosis or treatment instruction?

No. It describes a calculation or score from the supplied information. A qualified clinician must check the measurements, the method’s applicability and the wider clinical picture.

Can I enter the units from any lab report?

Use the units specified in the form and select a conversion only where the page provides one. Different substances need different conversion factors; a mismatch can produce a plausible but incorrect result.

9

Sources & References