Glasgow/Ranson criteria for severity of acute pancreatitis

The standard method of assessing severity of acute pancreatitis is by using the Glasgow/Ranson criteria. Three or more of the following criteria, based on initial admission score and subsequent repeat tests over 48 hours, constitutes severe disease
▪ 1. Age >55 years
▪ 2. White blood cell count >15 x10 9/l
▪ 3. Glucose>10 mmol/l
▪ 4. Urea>16 mmol/l
▪ 5. PaO2 <60 mmHg
▪ 6. Calcium <2 mmol/l
▪ 7. Albumen <32 g/l
▪ 8. Lactate dehydrogenase >600 units/l
▪ 9. Aspartate/alanine aminotransferase >100 units

A CRP>210mg/L in first 4 days of attack indicates severe disease, and an APACHE score of 9 or more also constitutes a severe attack.