An ALT blood test is rarely ordered alone and is more likely part of a larger set of labs called a liver panel or liver function test. Common liver function tests include aspartate transaminase (AST), alkaline phosphatase (ALP), bilirubin, albumin, and prothrombin time (PT).
Doctors consider ALT results along with the results of these other labs to determine the extent of liver damage and the next step in diagnosing any problems.

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