The preoperative eight tests do not specify the weeks of pregnancy to do, is generally considered to be the earlier the better, preferably before pregnancy has been checked to be normal results.
The preoperative eight tests usually refer to the hepatitis B surface antibody antigen, hepatitis C antibody, syphilis serum, HIV antibody, and TORCH content (cytomegalovirus, rubella virus, herpes virus, toxoplasmosis) tests. These tests should clarify the results before conception, and there are abnormalities some of which need to be treated before pregnancy.
In addition, it is best to check the contents of the test before pregnancy, including blood and urine routine, thyroid hormones, blood glucose, blood lipids, pre-thrombotic state, liver and kidney function, electrocardiogram, etc., in order to timely detection of abnormalities and deal with them, so as to avoid adverse consequences.