my ex wife is an alcoholic . she recently underwent testing from a company called lextox . she has declared that she drank wine 1.5 months prior to the test date . the test is to determine overnight contact with our daughter . the two results that appear high are alanine transferase ( 63 iu/l ) and gamma gt ( 172 iu/l ) . what we d like to establish is whether this is a reliable measure of consistent abuse , or could it be historic damage that has been done from her drinking . many thanks