Liver Function Tests or LFT does not indicate a recent intake of
alcohol,it just determines the liver function enzymes
values such as ALT and AST.Alcohol levels in blood can be determined by Alcohol breath test or by urinalysis.
Although LFT determines the value of ALT and AST, it does not indicate the function of liver, but these values indicate the level of damage to liver,so you can call this test as Liver Damage Test.