Liver function tests are a group of blood tests used to determine the function and health of a patient's liver. they usually include * Albumin - Albumin is made by the liver and is cheap and easy to test for. Low levels are typically caused by cirrhosis * AST and ALT - Although neither is specific to the liver, if both levels are high, it does point to liver damage. * Alkaline phosphatase - High levels usually indicate a blockage in the ducts inside or leading from the liver. * Total and direct bilirubin - The liver is responsible for breaking down bilirubin that is not bound to albumin. The tests measure all bilirubin (bound and unbound - total) and that not bound to albumin (direct). Depending on the level of each, it can point to the failure of the liver to process it (all
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