A thorough medical history and the patient's medications must be recorded. The history should focus on previous symptoms and any record of gallstones, ethanol abuse, hypercalcemia, hypertriglyceridemia and trauma. Serum amylase, lipase, triglyceride level, calcium level and liver function tests should be ordered. Abdominal and endoscopic ultrasounds should be performed to evaluate for gallstones and other obstructive possibilities such as tumors of the pancreas head