If there is a liver function test during the physical examination, you need to fast from water or food in advance, so be sure to take oral transaminase-lowering medication the day before the physical examination to keep the transaminases within the normal range. If you do not consume water six hours before the physical examination, this will also lead to an increase in transaminases, which will affect the results of the physical examination. If you need to use transaminase-lowering drugs, it is recommended that you take them four hours before the physical examination. For some patients suffering from hepatitis, there will also be elevated transaminases, the use of transaminase-lowering drugs alone is not effective, it is unlikely to reduce transaminases in a short period of time, should be treated by antiviral and other means to reduce transaminases, and then the physical examination, to avoid affecting the results of the physical examination.