ClinicalAssist

qSOFA Calculator

Quick Sequential Organ Failure Assessment - bedside screening tool for identifying patients at risk of poor outcomes from sepsis.

qSOFA Criteria

qSOFA Score

0/3

Low

Low qSOFA score does not rule out sepsis. Clinical judgement remains essential.

When to use qSOFA

Use qSOFA as a bedside screening tool for patients with suspected infection outside the ICU. It identifies patients who may have sepsis and are at higher risk of poor outcome. It does not require laboratory tests, making it suitable for rapid bedside assessment.

How to interpret

  • Score 0: Low qSOFA - sepsis not excluded; use clinical judgement
  • Score 1: One criterion present - monitor closely, reassess if deterioration
  • Score 2-3: High risk of poor outcome - consider sepsis, escalate care, request senior review

Clinical context

qSOFA is a screening tool, not a diagnostic test for sepsis. A low score does not rule out sepsis. The Sepsis-3 definition recommends using qSOFA in conjunction with clinical assessment and, where available, SOFA scoring. NHS Sepsis Trust guidelines and the Sepsis Six bundle should be followed alongside qSOFA assessment.

Use this calculator within your clinical workflow

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ClinicalAssist is a decision support tool only and does not replace clinical judgement. Read full disclaimer