2, do dialysis, mainly to check whether there are abnormalities in the lungs (such as infectious diseases such as tuberculosis).
3, test stool, this is mainly to check infectious diseases such as Escherichia coli and hepatitis.
4, draw blood, draw a small amount of blood on the arm (mainly to check whether there is hepatitis B or other infectious diseases).
Extended data
Misunderstanding of health certificate
First, holding a "health certificate" indicates good health. The health certificate stipulates that the holder shall have a health examination once a year. People are mobile, but the examination of health certificates is relatively static. Some licensees are infected with diseases after the exam, but they still hold qualified health certificates before the next exam.
Many diseases are hidden and latent, and carriers themselves do not feel symptoms; Some people are afraid that failing the examination will mean that they are laid off and have no food, so they have to deliberately avoid hiding it, resulting in patients or carriers with health certificates continuing to work. In fact, there are many examples of unemployment in non-service industries due to the abuse of health certificates.
Second, applying for a health certificate is only beneficial to the parties concerned. For a considerable number of staff, it is both costly and troublesome, and there is also the risk of unemployment.
In fact, the content of health certificate mainly involves the inspection of infectious diseases, in order to ensure the health and safety of the service industry. Personnel engaged in toxic, harmful and radioactive operations do not belong to the service industry and do not need to hold health certificates at all, so it cannot be said that health certificates are an effective way to understand physical condition and ensure health and safety.
Baidu encyclopedia-health certificate