When is qSOFA used vs full SOFA scoring?

qSOFA is a bedside screening tool for suspected infection outside the ICU (ED, ward) requiring only 3 clinical variables. Full SOFA requires labs and is used for ICU prognostication and research. qSOFA >=2 has 60 to 70% sensitivity for sepsis but should trigger full SOFA calculation, lactate, and blood cultures - not replace sepsis workup.

What is the sensitivity and specificity of qSOFA for sepsis?

qSOFA >=2: sensitivity 53 to 75%, specificity 67 to 82% for in-hospital mortality in suspected infection. SIRS criteria have higher sensitivity (93%) but lower specificity (26%). qSOFA is better at identifying patients at risk for poor outcomes requiring ICU-level care, not as a diagnostic test for sepsis itself.

qSOFA Quick Sepsis-Related Organ Failure Assessment

Calculate qSOFA (RR >=22, altered mentation, SBP <=100 mmHg) as a rapid bedside sepsis screening tool for patients outside the ICU. Score >=2 warrants urgent assessment for organ dysfunction.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.

How to Use

Enter the values for the scenario you are assessing. Calculate qSOFA (RR >=22, altered mentation, SBP <=100 mmHg) as a rapid bedside sepsis screening tool for patients outside the ICU. Score >=2 warrants urgent assessment for organ dysfunction. Use the qsofa score result to inform your calculation.

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