 The typical liver panel will include blood levels of enzymes found primarily from the liver, such as the aminotransferases (ALT, AST), and alkaline phosphatase (ALP); bilirubin (which causes the jaundice); and protein levels, specifically, total protein and albumin.Other primary lab tests for liver function include gamma glutamyl transpeptidase (GGT) and prothrombin time (PT).No single test can differentiate between various classifications of jaundice.