qSOFA Score Calculator (Quick SOFA)

Your details

Any new change in mental status counts: confusion, somnolence, agitation, or a Glasgow Coma Scale score below 15.
Count breaths per minute. A rate of 22 or more earns one point.
breaths/min
Systolic (upper) blood pressure in mmHg. A reading of 100 mmHg or less earns one point.
mmHg
qSOFA ScoreLow Risk
0/ 3

Sum of the three binary criteria (0-3)

Altered mental status0pt
Respiratory rate criterion0pt
Systolic BP criterion0pt
0 / 3
Low Risk<1Indeterminate1-2High Risk2+

qSOFA score of 0/3 - no criteria met.

  • None of the three qSOFA criteria are currently met.
  • A score of 0 is associated with low in-hospital mortality risk for patients with suspected infection.
  • qSOFA has a sensitivity of approximately 46%, so a score of 0 does not rule out sepsis. Clinical judgment and full context are essential.

Next stepContinue standard assessment. If infection is still suspected, consider SIRS criteria, NEWS score, or laboratory evaluation including lactate and CBC.

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