Can I Eat on the Day Before a Medical Examination?

Regular physical examination can not only prevent the occurrence of some serious diseases, but also detect chronic diseases or local infections, so that early treatment can be carried out in time to avoid disease progression. Generally, you can eat the day before the physical examination. First, can you eat the day before the physical examination? You can eat the night before the physical examination, but you should eat light food, not too greasy or too full, and do not drink alcohol, because the normal values of many laboratory results are derived from fasting blood tests of normal people. Fasting means no intake of calories for a certain period of time. Routine fasting tests in hospitals include fasting blood glucose, blood lipids, liver function, and liver, gallbladder, pancreas, and spleen B-ultrasound, etc. These tests require fasting. Especially for triglycerides in blood lipids, the fasting time should reach 12-16 hours. If the fasting time is not enough, the test results will be unreliable. Hospital physical examinations usually involve blood drawing between 8-10 am, so after 8 pm the night before the physical examination, do not eat anything containing calories, but you can drink some water appropriately. It is best to go to bed early to avoid affecting the results of the physical examination the next day. Also, do not drink water or eat breakfast on the morning of the physical examination.

1. Do not eat before the physical examination, but you can drink water. The main reason for not eating and drinking is to ensure the accuracy of indicator tests, such as blood tests and urine tests. Only when fasting, our body is in a state of basic metabolism, and at this time, it can reflect the true condition of the blood. Especially for tests such as liver function, blood sugar, and blood lipids, the requirements for fasting are more strict. After getting up, remember not to eat and maintain a fasting state, but you can drink a small amount of water.

2. The blood sampling time should not be too late. The best time for physical examination and testing is between 7:30 and 8:30 in the morning, and it is best not to exceed 9:00. Too late may affect the accuracy of blood glucose due to the influence of physiological endocrine hormones in the body. Therefore, physical examinees should go for blood sampling as early as possible to avoid missing the best blood sampling time.

3. Do not eat greasy food. Eating too much greasy food within 3 days before the physical examination may temporarily increase blood lipid levels and affect the accuracy of the test results. Greasy food includes braised pork in brown sauce, fried food, etc. A few days before the physical examination, it is necessary to eat light food, eat more vegetables, and maintain a good physical condition.

4. Maintain good sleep. Lack of good sleep can have a significant impact on the results of the physical examination. Staying up late can affect basic indicators such as blood pressure, heart rate, and breathing, as well as the accuracy of blood indicators. Therefore, it is very important to get enough sleep the night before the physical examination and try to go to bed early.