SIRS Criteria Calculator — free guideline decision tool
Check the SIRS criteria for systemic inflammatory response (≥ 2 of 4).
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
Common questions
What does SIRS Criteria Calculator do?
Screen for systemic inflammation; with infection, prompt sepsis evaluation.
How is the result calculated?
1 point each: temp > 38 or < 36°C; HR > 90; RR > 20 or PaCO₂ < 32; WBC > 12 or < 4 ×10⁹/L or > 10% bands. ≥ 2 = SIRS.
Is this a substitute for clinical judgement?
No. All results are decision-support only, for licensed clinicians. They must be individualized to the whole patient and the latest guideline version.
Run SIRS Criteria Calculator now
Check the SIRS criteria for systemic inflammatory response (≥ 2 of 4).
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.