The examination of pancreatitis requires laboratory tests and imaging examinations to assess the severity of the condition and to identify the cause. Elevated amylase and lipase levels more than three times the normal values, increased white blood cells, elevated C-reactive protein, increased blood sugar, elevated transaminases and bilirubin, decreased albumin, increased urea nitrogen and creatinine, decreased blood oxygen partial pressure, decreased blood calcium, elevated triglycerides, and abnormalities in blood sodium, potassium, and pH values all reflect the severity of pancreatitis. Abdominal ultrasound is a routine initial screening imaging examination for acute pancreatitis, and abdominal CT is helpful in confirming the presence of pancreatitis, peripancreatic inflammatory changes, and pleural effusion. Enhanced CT is beneficial in determining the extent of pancreatic necrosis and is generally performed about a week after the onset of the condition. However, when searching for the cause of pancreatitis, the sensitivity and accuracy of CT are not as good as MRI, therefore further MRI should be conducted to investigate causes related to the bile duct and to determine the cause of the pancreatitis.