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Ranson's Criteria

Classic score used to estimate severity and mortality in acute pancreatitis. It is calculated in two stages: on admission and at 48 hours.

WBC >16k

Age >55 years

Glucose >200 mg/dL (>11.1 mmol/L)

AST >250

LDH >350

Hct drop >10% from admission

BUN increase >5 mg/dL (>1.79 mmol/L) from admission

Ca <8 mg/dL (<2 mmol/L) within 48 hours

Arterial pO2 <60 mmHg within 48 hours

Base deficit (24 - HCO3) >4 mg/dL within 48 hours

Fluid needs >6 L within 48 hours

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Gastroenterology and Hepatology

Ranson's Criteria