Hematocrit on admission; gallstones in common bile duct on admission; BUN on admission; pleural effusion on a chest x-ray film.
Which of the following is not a commonly used prognostic indicator for acute pancreatitis?
A. Hematocrit on admission
B. Gallstones in the common bile duct on imaging
C. BUN on admission
D. Pleural effusion on CXR