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
Poor prognostic factor in acute Pancreatitis is : 
Select and explain. 
A. Increased serum amylase, B. Decreased calcium, C. Decreased blood sugar, D. All
B: Decreased calcium
Answer: B: Decreased calcium 
Explanation: Ans. is 'b' i.e. decreased calcium