In general, drinking a small amount of water in the morning when checking liver function has no effect. Liver function is a very important medical test, and transaminases can be significantly elevated when there is chronic hepatitis B or chronic hepatitis C. People who drink a lot of alcohol over a long period of time may have significantly elevated gamma glutamyl transpeptidase, and patients with cirrhosis may have significantly low albumin and significantly elevated globulin, and albumin is significantly lower when the synthetic function of the liver is significantly reduced. If you drink a small amount of water in the morning, it will not affect the results. If you drink a lot of alcohol before the physical examination, it may lead to acute damage to liver function, resulting in an acute increase in transaminases.