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About this tool
Score the three Sepsis-3 qSOFA criteria — respiratory rate, systolic pressure and mentation — for study and revision use.
The qSOFA Score Calculator scores the three bedside criteria defined in the Sepsis-3 consensus (Singer et al., JAMA 2016): a respiratory rate of 22 breaths per minute or more, a systolic blood pressure of 100 mmHg or less, and altered mentation with a Glasgow Coma Scale below 15. Each criterion scores one point, and a total of 2 or more is called positive. It is built for students and clinicians revising the score; qSOFA flags risk of a poor outcome in suspected infection and does not diagnose sepsis.
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Enter the values you already know.
Fine-tune the options to match your scenario.
Read the result and use it in your planning or reporting.
Uses ≥22 breaths/min, ≤100 mmHg and GCS <15 as published, including the inclusive edges.
Shows which of the three criteria scored, not just the total.
States the Surviving Sepsis Campaign position that qSOFA should not be the sole screening tool.
Respiratory rate of 22 breaths per minute or more, systolic blood pressure of 100 mmHg or less, and altered mentation (Glasgow Coma Scale below 15). Each scores one point, giving a total from 0 to 3.
Two or more points is a positive qSOFA. In the Sepsis-3 derivation cohorts, patients with suspected infection outside the ICU scoring 2 or more had a substantially higher risk of prolonged ICU stay or in-hospital death, so it should prompt a full assessment for organ dysfunction rather than reassurance.
No. Sepsis-3 defines sepsis as life-threatening organ dysfunction caused by a dysregulated host response to infection, identified by an increase of 2 or more points in the full SOFA score. qSOFA is only a rapid bedside prompt to look for that organ dysfunction.
The 2021 Surviving Sepsis Campaign guideline recommends against using qSOFA alone, in preference to SIRS, NEWS or MEWS, because its sensitivity for identifying sepsis early is low. It remains useful as a prognostic prompt and is still widely taught. Clinical decisions should follow local protocol and senior review.
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