Reference values vary based on several factors, including the specific laboratory that supplies them. A patient's stool test values should be interpreted based on the reference value of the laboratory in which the test was done; the laboratory typically provides these values with the test result. These values are listed in alphabetical order in the following table.
Representative Laboratory Reference Values: Stool
< 5 g/day in patients on a 100-g fat diet
< 2 g/day
40–280 mg/24 hours
68–473 mcmol/24 hours
< 200 g/day