Review article: Diagnosing acute pancreatitis in diabetes mellitus.

Acute pancreatitis is a common reason for presentation to EDs. The criteria for diagnosis of acute pancreatitis are defined by the revised Atlanta classification. Patients with diabetes mellitus are at increased risk of acute pancreatitis. Uncomplicated diabetes mellitus, complications such as ketoacidosis and newer medications used in the treatment of hyperglycaemia may all be associated with elevated serum lipase and amylase in the absence of acute pancreatitis. Checkpoint inhibitors may also precipitate acute type 1 diabetes mellitus and be associated with elevated lipase and amylase. Finally, individuals with diabetes mellitus are at increased risk of hypertriglyceridaemic pancreatitis, which may be associated with falsely normal lipase and amylase because of laboratory interference. Awareness of these factors in individuals with diabetes mellitus presenting to EDs with symptoms suggestive of acute pancreatitis is important for accurate diagnosis.

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