qSOFA / SOFA
Score quickSOFA and the full Sequential Organ Failure Assessment side by side per Sepsis-3 (Singer JAMA 2016; Vincent ICM 1996).
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- qSOFA: RR >= 22/min
- Yes
- qSOFA: altered mental status
- Yes
- SOFA: respiration grade
- 1
- SOFA: cardiovascular grade
- 1
Result: qSOFA 2 (high risk for poor outcome); SOFA 2.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- qSOFA >=2
- Identifies higher risk of in-hospital mortality or prolonged ICU stay among patients with suspected infection.
- qSOFA <2
- Does not exclude sepsis; reassess if clinical concern persists.
What you enter
- qSOFA: RR >= 22/min
- qSOFA: altered mental status
- qSOFA: SBP <= 100
- SOFA: respiration grade
- SOFA: coagulation grade
- SOFA: liver grade
- SOFA: cardiovascular grade
- SOFA: CNS grade
- SOFA: renal grade
What this is
qSOFA uses three bedside variables - altered mentation, respiratory rate >=22, and SBP <=100. Full SOFA scores six organ systems (respiratory, coagulation, liver, cardiovascular, CNS, renal) 0-4 each. Sophie Well returns both totals so a ward and ICU clinician can speak the same language about the same patient.
When to use it
Use qSOFA at the front door (ED triage, ward rapid-response) to flag a patient with suspected infection who is at high risk of a poor outcome (qSOFA >=2). Use the full SOFA in the ICU as the operational definition of sepsis-related organ dysfunction (an acute increase of >=2 points from baseline). Neither score is a sepsis-screening tool by itself; both presuppose a clinical suspicion of infection.
How this is calculated
Singer M, et al. Sepsis-3 (qSOFA). JAMA. 2016;315(8):801-810. Vincent JL, et al. SOFA. Intensive Care Med. 1996;22(7):707-710. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.
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