This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
All the following can be used to predict severe acute pancreatitis except ? 
Select and explain. 
A. Glassgow score . 3, B. APACHE II score 9, C. CT severity score .. 6, D. C - reactive protein < 100
D: C - reactive protein < 100
Answer: D: C - reactive protein < 100 
Explanation: Ans. is 'd' i.e., C - reactive protein < 100 On account of difference in the outcome between patients with mild and severe disease, it is impoant to define that group of patients who will develop severe pancreatitis. Criterias used to determine the severity of acute pancreatitis.