One prospective study that included 213 patients with acute pancreatitis (biliary etiology - 62%) calculated that the probability of a biliary origin of AP could be estimated by the following formula: = 1/1 + exp (4.6967 - 0.0656 x age + 1.1208 x sex - 0.6909 x ALT) [13]. This evidence concerns the gene GPT and alkaline phosphatase measurement.