This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Medicine
[{'content': 'Which of the following is the diagnostic test in pancreatic insufficiency \nSelect and explain. \nA. Schilling test, B. Serum lipase, C. Serum amylase, D. Faecal fat estimation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Exocrine pancreatic insufficiency (EPI) is a condition characterized by deficiency of the exocrine pancreatic enzymes, resulting in the inability to digest food properly, or maldigestion How Exocrine Pancreatic Insufficiency Is Diagnosed A fecal fat test involves looking at a stool sample under a microscope. ... Blood tests can measure trypsinogen, the pancreatic enzyme that conves to trypsin Ref Davidson edition23rd pg837', 'role': 'assistant'}]