Template:LRINEC SCORE

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  • May use to risk stratify patients with signs of cellulitis but concern for deep space infection. It is useful in context of a diagnosed or strongly suspected severe soft-tissue infection
  • Score based on: CRP, WBC, Hb, Na, Cr, Glucose and a Score > 6 has PPV of 92% and NPV of 96% for necrotizing fasciitis

Be aware LRINEC score has not been prospectively validated, index of suspicion is key and 10% of the patients with a score < 6 had Necrotizing Fasciitis[1]

  • CRP (mg/L) ≥150: 4 points
  • WBC count (×103/mm3)
    • <15: 0 points
    • 15–25: 1 point
    • >25: 2 points
  • Hemoglobin (g/dL)
    • >13.5: 0 points
    • 11–13.5: 1 point
    • <11: 2 points
  • Sodium (mmol/L) <135: 2 points
  • Creatinine (umol/L) >141: 2 points
  • Glucose (mmol/L) >10: 1 point
  1. Wong C. "The LRINEC (Laboratory Risk Indicator for Necrotizing Fasciitis) score: a tool for distinguishing necrotizing fasciitis from other soft tissue infections". Crit Care Med. 2004. 32(7):1535-41.