Alcoholism laboratory findings
Urine and blood tests
There are reliable tests for the actual use of alcohol, one common test being that of blood alcohol content (BAC). These tests do not differentiate alcoholics from non-alcoholics; however, long-term heavy drinking does have a few recognizable effects on the body, including:
- Macrocytosis (enlarged MCV)1
- Elevated GGT²
- Moderate elevation of AST and ALT and an AST:ALT ratio of 2:1.
- High carbohydrate deficient transferrin (CDT)
However, none of these blood tests for biological markers are as sensitive as screening questionaires.