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Table 2 Fournier’s Gangrene severity index

From: WSES/GAIS/WSIS/SIS-E/AAST global clinical pathways for patients with skin and soft tissue infections

Physiological variables  + 4  + 3  + 2  + 1 0  + 1  + 2  + 3  + 4
Temperature (C)  > 41 39–40 38–39 36–38.4 34–35.9 32–33.9 30–31.9  < 29.9
Heart rate (bpm)  > 180 140–179 110–139 70–109 55–69 40–54  < 39
Respiratory rate  > 50 35–49 25–34 12–24 10–11 6–9  < 5
Serum K + (mmol/L)  > 7 6–6.9 5.5–5.9 3.5–5.4 3–3.4 2.5–2.9  < 2.5
Serum Na+ (mmol/L)  > 180 160–179 155–159 150–154 130–149 120–129 110–119  < 110
Serum creatinine (mg/1000 ml)
(× 2 for acute renal failure)
 > 3.5 2–3.4 1.5–1.9 0.6–1.4  < 0.6
Hemotocrit (%)  > 60 50–59 46–49 30–35 20–29  −  < 20  
WBC (mm3)  > 40 20–39.9 15–19 3–14.9 1.2.9  < 1
Serum bicarbonate venous (mmol/L)  > 52 41–51 32–40 22–31 18–21 15–17  < 15