SIRS Criteria

Having more than two of the following criteria results in a diagnosis of Systemic Inflammatory Response Syndrome (SIRS).

Key Information: < represents "less than" and > represents "greater than"

Item Value
Temperature < 36°C or > 38.3°C
Heart Rate > 90 bpm
Respiratory Rate > 20 bpm
Acutely altered mental state
Blood Sugar > 6.6 mmol/L  (if patient is not diabetic)
White Cell Count < 4 (x10-9/L) or > 12 (x10-9/L)
CRP > 30 mg/L
Significant oedema
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