You need an empty stomach to get a health certificate. Does it matter if you eat something in the morning and then check it?

Analysis of illness: the requirement of fasting examination of health certificate is to meet the needs of liver function. Because liver function is done after eating, especially after eating high-protein or high-fat food, the test results can easily make doctors misdiagnose the examiner as a hepatitis patient. The reason is that normal people's blood contains large molecules of β and γ globulin, which can combine with some chemical reagents to produce precipitation; Small molecules of albumin and α 1- globulin can prevent precipitation. Therefore, the blood of normal people will not be precipitated by adding the specified chemical reagent. The albumin in the serum of hepatitis patients decreases, so precipitation will occur. Generally, the fasting time should be 8- 12 hours.