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Table 4 Bedside index of severity of acute pancreatitis (BISAP) score [48]

From: 2019 WSES guidelines for the management of severe acute pancreatitis

BISAP: score one point for each of the following criteria
 Blood urea nitrogen level > 8.9 mmol/L
 Impaired mental status
 Systemic inflammatory response syndrome is present
 Age > 60 years
 Pleural effusion on radiography