<prompt> Hepatic secretory function is evaluated usingAlkaline phosphatase5 nucleotidaseGamma glutamyl transpeptidaseProthrombin time PT  <response>: Answer- D. Prothrombin time PTThe most widely used tests are those measuring the blood concentration of aspaate aminotransferase AST and alanine aminotransferase ALT.Congulation proteins: The easiest way to estimate the concentration of the coagulation factors is by measuring the prothrombin time PT, which is normally l0 to 13 seconds. Prolonged PT is a sensitive index of liver function loss. 