Abnormal Results Liver Blood Test. Your liver is inflamed for example by infection toxic substances like alcohol and some medicines or by an immune condition. Your liver cells have been damaged for example by toxic substances such as alcohol paracetamol poisons.
This test may detect elevated levels of bilirubin before jaundice is present. Therefore the term liver function tests or LFTs has been replaced by liver blood tests. Other liver function tests measure enzymes that liver cells release in response to damage or disease.
The blood tests most frequently used for liver disease are the aminotransferases alanine aminotransferase or ALT and aspartate aminotransferase or AST.
The extent of liver blood test abnormality is not necessarily a guide to clinical significance. Until recently liver blood tests were referred to as liver function tests or LFTs. What Are the Signs and Symptoms of High Liver Blood Tests. Elevated liver enzymes may be a sign that a persons liver is not working properly.