The most common Liver Function tests are Bilirubin, Albumin, ALT and AST. The doctor will order this test for you if he suspects that you may be suffering from a condition that is affecting your liver. A dark coloured urine or light-coloured stools may indicate damage to the liver cells. If you are suffering from Jaundice, the liver is closely monitored. Nausea, Vomiting, diarrhoea may also warrant a liver function test.