Final answer:
Lab tests for liver disease due to alcohol include the ALT, AST, and GGT tests, and all three are used to detect damage from alcohol consumption. A combination of high ALT, AST, and GGT levels strongly suggests alcohol-related liver disease.
Step-by-step explanation:
The lab tests used to detect liver disease due to alcohol include the ALT (Alanine aminotransferase) test, AST (Aspartate aminotransferase) test, and the GGT (Gamma-glutamyl transferase) test. Thus, the correct answer to the question would be All of the above (4).
ALT and AST are enzymes that are released into the blood when liver cells are damaged. The ALT test is particularly sensitive to liver damage and can rise dramatically in cases of acute liver injury. The AST test is also raised in acute liver damage, but since AST is also present in red cells and muscle tissues, its specificity to liver is lower. The AST/ALT ratio can however help differentiate causes of liver damage. GGT levels are especially sensitive to alcohol use and can indicate even minor levels of liver dysfunction. A high GGT level in conjunction with high levels of ALT and AST can strongly suggest liver disease related to alcohol abuse.