Lipase
Amylase is both less sensitive and specific (sensitivity: 67-100%; specificity: 85-98%)
CBC
Chemistry
LFTs
?Lactate
?Triglyceride
Amylase is both less sensitive and specific (sensitivity: 67-100%; specificity: 85-98%)
Edematous, swollen pancreas
Gallstones
Pseudocyst / pancreatic abscess
Little utility early on in disease and unlikely to  affect the management of patients with<unk>  during the first week of the illness
Should be reserved for patients with persisting organ failure, severe pain and signs of sepsis
Two of the following:
Characteristic abdominal pain
Lipase level >3x upper limit of normal
Sensitivity 82-100%, specificity 82-100%
Negative lipase does not exclude<unk>  in chronic/recurrent disease
Absolute value not associated with prognosis or severity
Characteristic findings on ultrasound or CT
Sensitivity 82-100%, specificity 82-100%
Negative lipase does not exclude<unk>  in chronic/recurrent disease
Absolute value not associated with prognosis or severity
Acute pancreatitis
Gastroesophageal reflux disease 
Acute calculous cholecystitis
Peptic ulcer disease with or without perforation
Chronic pancreatitis
Gastritis
Duodenal hematoma
Pancreatitis