SIRS Criteria Calculator

Free calculate SIRS criteria (Systemic Inflammatory Response Syndrome). This is an educational tool only - always consult a healthcare provider.

Vital Signs & Lab Values

Results

Enter vital signs to assess SIRS criteria

SIRS Criteria

  • • Temperature <36°C or >38°C
  • • Heart rate >90 bpm
  • • Respiratory rate >20/min or PaCO2 <32 mmHg
  • • WBC <4 or >12, or >10% bands
  • • ≥2 criteria = SIRS positive