what is tbil in blood work
Liver function tests (LFTs or LFs) are groups of blood tests that give information about the state of a patient's liver.These tests include prothrombin time (PT/INR), aPTT, albumin, bilirubin (direct and indirect), and others.Liver transaminases (AST or SGOT and ALT or SGPT) are useful biomarkers of liver injury in a patient with some degree of intact liver function.ncreased total bilirubin (TBIL) causes jaundice, and can indicate a number of problems: 1  1. Prehepatic: Increased bilirubin production can be due to a number of causes, including hemolytic anemias and internal hemorrhage. 2  2. 3  3. Posthepatic: Obstruction of the bile ducts is reflected as deficiencies in bilirubin excretion.