LRINEC score for necrotizing soft tissue infection
Laboratory risk indicator for necrotizing fasciitis.
Inputs
CompleteCRP
WBC (× 10³/µL)
Hemoglobin (g/dL)
Sodium below 135 mEq/L
Creatinine above 1.6 mg/dL
Glucose above 180 mg/dL
Worked calculation
Your values are highlighted.
- Points
When to use
- Severe soft tissue infection where necrotizing infection is possible.
Pearls and pitfalls
- A low score does not exclude NSTI; validation sensitivity is modest. Clinical suspicion warrants surgical exploration.
Why use
Objective support for surgical consultation.
| Criterion | Points |
|---|---|
| CRP: Below 150 mg/L | 0 |
| 150 mg/L or higher | +4 |
| WBC (× 10³/µL): Below 15 | 0 |
| 15–25 | +1 |
| Above 25 | +2 |
| Hemoglobin (g/dL): Above 13.5 | 0 |
| 11–13.5 | +1 |
| Below 11 | +2 |
| Sodium below 135 mEq/L | +2 |
| Creatinine above 1.6 mg/dL | +2 |
| Glucose above 180 mg/dL | +1 |