Emergency Medicine · Internal Medicine · ICU and Critical Care
Systemic Inflammatory Response Syndrome (SIRS) calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Result
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0
SIRS absent (0–1 criteria)
Band: SIRS absent (0–1 criteria)
Interpretation. SIRS absent (0–1 criteria)
Suggested management. Fewer than 2 SIRS criteria are present; this does not exclude infection or organ dysfunction.
Systemic Inflammatory Response Syndrome (SIRS): 0 — SIRS absent (0–1 criteria). Interpretation: SIRS absent (0–1 criteria) What to do: Fewer than 2 SIRS criteria are present; this does not exclude infection or organ dysfunction. Inputs: Temperature >38°C or <36°C: false; Heart rate >90/min: false; Respiratory rate >20/min or PaCO₂ <32 mmHg: false; WBC >12,000/mm³, <4,000/mm³, or >10% bands: false Source: Bone RC et al. Definitions for sepsis and organ failure and guidelines for innovative therapies. Chest (1992)
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Clinical inputs
- Temperature >38°C or <36°C
- Heart rate >90/min
- Respiratory rate >20/min or PaCO₂ <32 mmHg
- WBC >12,000/mm³, <4,000/mm³, or >10% bands
Primary source
Bone RC et al. Definitions for sepsis and organ failure and guidelines for innovative therapies. Chest (1992)
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