This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Transplantation, Subject name: Surgery
The advantage of bladder drainage over enteric drainage after pancreatic transplantation is better monitoring of: 
Select and explain. 
A. HBA1C levels, B. Amylase levels, C. Glucose levels, D. Electrolyte levels
B: Amylase levels
Answer: B: Amylase levels 
Explanation: Ans. (b) Amylase levelsRef: Sabiston 19th edition, Pages 675-679* Amylase is measured easily in urine in bladder drainage* When urinary amylase decreases it's time to check for graft failure by taking biopsy* Similar amylase testing is difficult in Intestine drainage.