Ranson's Criteria

Table 33-4 Ranson's Prognostic Signs of Pancreatitis

Criteria for acute pancreatitis not due to gallstones
At admission	During the initial 48 h
Age >55 y	Hematocrit fall >10 points
WBC >16,000/mm3	BUN elevation >5 mg/dL
Blood glucose >200 mg/dL	Serum calcium <8 mg/dL
Serum LDH >350 IU/L	Arterial PO2 <60 mm Hg
Serum AST >250 U/dL	Base deficit >4 mEq/L
	Estimated fluid sequestration >6 L
Criteria for acute gallstone pancreatitis
At admission	During the initial 48 h
Age >70 y	Hematocrit fall >10 points
WBC >18,000/mm3	BUN elevation >2 mg/dL
Blood glucose >220 mg/dL	Serum calcium <8 mg/dL
Serum LDH >400 IU/L	Base deficit >5 mEq/L
Serum AST >250 U/dL	Estimated fluid sequestration >4 L

AST = aspartate
transaminase; BUN = blood urea nitrogen; LDH = lactate
dehydrogenase; PO₂ = partial pressure
of oxygen; WBC = white blood cell count.

Source: Data from Ranson JHC: Etiological and prognostic factors
in human acute pancreatitis: A review. Am J Gastroenterol 77:633,
1982. From Macmillan Publishers Ltd. Ranson JH, Rifkind KM, Roses
DF, et al: Prognostic signs and the role of operative management
in acute pancreatitis. Surg Gynecol Obstet 139:69,
1974.