LRINEC Score (necrotizing fasciitis)
LRINEC score (Wong 2004): risk-stratifies necrotizing fasciitis (0-13) from CRP, WBC, hemoglobin, sodium, creatinine, and glucose; >= 6 raises suspicion.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- C-reactive protein
- 180
- White blood cell count
- 26
- Hemoglobin
- 10
- Sodium
- 134
Result: LRINEC 10: high risk of necrotizing fasciitis (> 75%). A score >= 6 should raise suspicion.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Bands
- low <= 5 (< 50%), intermediate 6-7 (50-75%), high >= 8 (> 75%); >= 6 raises suspicion. A low score does NOT rule out necrotizing fasciitis.
What you enter
- C-reactive protein (mg/L)
- White blood cell count (x10^3/uL)
- Hemoglobin (g/dL)
- Sodium (mmol/L)
- Creatinine (mg/dL)
- Glucose (mg/dL)
How this is calculated
- Points
- CRP >= 150 mg/L = 4; WBC 15-25/>25 = 1/2; Hb 11-13.5/<11 = 1/2; Na < 135 = 2; creatinine > 1.6 mg/dL = 2; glucose > 180 mg/dL = 1 (0-13).
Wong CH, Khin LW, Heng KS, Tan KC, Low CO. 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):1535-1541. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.