CRP and alkaline phosphatase measurement: We have not assessed the validity and reliability of that system, however, we feel that any patient with AP having NL ratio of less than 4.7 at admission, Glasgow score less than 2, CRP of less than 150-190 at 48 hours, and rise in CRP of less than 90 in 48 hours will have more than 80% chances of not developing the complicated acute pancreatitis.