Precautions before liver function examination

Before the liver function examination, it is necessary to fast for 8-12 hours and avoid drinking alcohol, vigorous exercise, and taking drugs that may affect the results. Liver function tests usually include indicators such as transaminase, bilirubin, albumin, etc., which are used to evaluate liver metabolism, synthesis, and detoxification function. Strict fasting is required 8-12 hours before the physical examination, as food intake may cause fluctuations in blood lipids, blood sugar, and other indicators, affecting the accuracy of transaminase and bilirubin testing. Drink a small amount of water during fasting, but avoid drinks containing sugar or caffeine. Three days before the examination, high-fat diet should be avoided, and the intake of animal organs and fried foods should be reduced to prevent abnormal blood lipids from interfering with the results. Alcohol can directly damage liver cells, leading to elevated transaminase levels. It is necessary to abstain from alcohol for one week before the physical examination. Some drugs, such as antibiotics, antipyretics and analgesics, and traditional Chinese patent medicines and simple preparations, may cause drug-induced liver injury. The use should be suspended three days before the examination according to the doctor's advice. Patients with chronic diseases should communicate with the doctor in advance. Intense exercise may cause an increase in creatine kinase, indirectly affecting liver function indicators. Rest should be maintained 24 hours before physical examination. On the day of the examination, avoid emotional tension as stress reactions may cause changes in hormone levels. Wearing loose clothing facilitates venous blood collection, and after blood collection, press the needle hole for 5 minutes to prevent bruising. Abnormal liver function may indicate diseases such as fatty liver, hepatitis, and cirrhosis. If the results are abnormal, further diagnosis should be made by combining ultrasound and hepatitis virus screening. People who stay up late for a long time and have a high-fat diet should have their liver function rechecked every 6-12 months, and patients with chronic liver disease should shorten the recheck interval according to medical advice. It is necessary to maintain a regular daily routine, control weight, supplement high-quality protein and vitamin B in moderation, and avoid consuming moldy foods to reduce liver burden.