Check liver function at least 3 days after drinking alcohol to avoid inaccurate results that can lead to missed or misdiagnosis. Checking liver function after drinking alcohol can lead to inaccurate results because alcohol is metabolized mainly through the liver. Drinking alcohol can lead to liver cell damage, which can lead to liver function abnormalities. Liver function tests after drinking alcohol can lead to missed or misdiagnosis, because the causes of liver function abnormalities include alcohol consumption, exertion, late night, medication, and disease. The time for alcohol to be metabolized in the body varies from person to person, and the more alcohol consumed, the longer it takes to metabolize. Three days before the liver function test, you should avoid drinking alcohol, taking medication, exertion, staying up late, etc., and eat a light diet. For the precautions of liver function test, it is recommended to consult with the doctor.