Tests		Comments
Complete blood count		Elevated with infection, abscess
Serum amylase and lipase		Nonspecific for chronic pancreatitis
Total bilirubin, alkaline phosphatase, and hepatic transaminase		Elevated in biliary pancreatitis and ductal obstruction by strictures or mass
Fasting serum glucose		Elevation suggests pancreatic diabetes mellitus
Pancreatic function tests		Sometimes useful in early chronic pancreatitis with normal computed tomography or magnetic resonance imaging findings
	Fecal elastase	< 200 mcg per g of stool is abnormal; noninvasive, exogenous pancreatic supplementation will not alter results, requires only 20 g of stool
	Fecal fat estimation	> 7 g of fat per day is abnormal; quantitative, requires 72 hours, should be on a diet of 100 g of fat per day
	Secretin stimulation	Peak bicarbonate concentration < 80 mEq per L (80 mmol per L) in duodenal secretion, best test for diagnosing pancreatic exocrine insufficiency
	Serum trypsinogen	< 20 ng per mL is abnormal
Lipid panel		Significantly elevated triglycerides are a rare cause of chronic pancreatitis
Calcium		Hyperparathyroidism is a rare cause of chronic pancreatitis
Immunoglobulin G4 serum antibody, antinuclear antibody, rheumatoid factor, erythrocyte sedimentation rate		Abnormality may indicate autoimmune pancreatitis