Alcohol Dependence: Test and Diagnosis

1st order laboratory parameters – obligatory laboratory tests.

  • Small blood count [MCV ↑]
  • Gamma-GT (gamma-glutamyl transferase)
  • Alanine aminotransferase (ALT, GPT), aspartate aminotransferase (AST, GOT) – only elevated in liver parenchyma damage) [AST > ALT].
  • Carbodeficient transferrin (CDT) ↑ (in chronic alcoholism; positive with consumption of one bottle of wine or three bottles of beer per day)* .
  • Uric acid

These parameters can be used to make a good diagnostic statement about drinking behavior.

* With abstinence, the values normalize within 10-14 days.

Laboratory parameters 2nd order – depending on the results of the medical history, physical examination, etc. – for differential diagnostic clarification.

Detection time of alcohol consumption

Test Detection time of alcohol consumption
Ethanol 5-7 h
Ethyl glucuronide 40-78 h
CDT Up to 3 weeks
Gamma-GT Up to 1 month
MVC Several months due toerythrocyte life (120 days)