<prompt> Which of the following pancreatic function test can be useful for estimation of bicarbonate as well as enzyme secretory activity of pancreas?CCK PZ testBentiromide testD-xylose testCCK- secretin test  <response>: Ans. d CCK- secretin test. Ref. Harrison, Internal Medicine, 16th ed., 1894TESTS FOR EXOCRINE PANCREATIC FUNCTION Direct stimulation of pancreas with IV secretin CCK Study of intra-luminal digestion products including bentiromide test Serum elastase trypsinogen level. Secretin - CCK test permits measurement of pancreatic lipase, amylase, trypsin chymotrypsin, HCO3- output fecal fat content suggests chronic pancreatic damage. 