<prompt> Which of the following is the diagnostic test for pancreatic insufficiency?Schilling testSerum lipaseSerum amylaseFaecal fat estimation  <response>: The gold standard test is an estimation of fecal fat. Serum amylase and lipase are elevated during acute attacks. Schilling test is done for cobalamine malabsorption.Ref: Harrison; 19th edition; Page no: 1938 