Can I take liver protection tablets before the liver function examination?

It is usually not recommended to take liver protection tablets before liver function examination to avoid affecting the accuracy of the test results. Liver protection tablets may interfere with the detection of liver related indicators, leading to misjudgment or masking potential problems.

Liver function tests mainly evaluate the metabolism, synthesis, and detoxification functions of the liver through blood testing. Common indicators include alanine aminotransferase, aspartate aminotransferase, bilirubin, etc. The active ingredients in liver protection tablets may temporarily alter the activity or concentration of these enzymes, for example, silymarin may reduce transaminase levels, leading to false normal test results. Discontinuing liver protection tablets 3-5 days before a physical examination can reduce interference and ensure that doctors can accurately assess the true condition of the liver. If medication is necessary for treatment needs, the doctor should be informed in advance of the medication usage. Before the physical examination, in addition to avoiding liver protection pills, it is also necessary to fast for 8-12 hours, abstain from alcohol for more than 3 days, and avoid vigorous exercise. On the day of the examination, a small amount of water can be consumed, but a high-fat diet should be avoided. Patients with chronic liver disease should consult a doctor to adjust their medication plan and should not stop taking medication on their own. If any abnormalities are found during the physical examination, it is recommended to have a follow-up examination and complete further tests such as ultrasound and hepatitis virus screening.