Can I take vitamin pills before the physical examination

It is generally not recommended to take vitamin tablets before a physical examination, as it may affect the accuracy of some test results. Vitamin supplements may interfere with blood biochemical indicators, especially the detection of fat soluble vitamins and B vitamins. Fat soluble vitamins such as vitamins A, D, E, and K can accumulate in the body and may temporarily increase blood concentrations after ingestion. Vitamin B2 can cause urine to appear fluorescent yellow and interfere with urine routine testing. Vitamin C may affect the determination of redox reaction related indicators such as blood glucose and uric acid. Mineral components such as iron and calcium contained in some complex vitamins may also interfere with trace element detection results. If taking vitamin supplements for a long time or suffering from vitamin deficiency, it is necessary to inform the doctor in advance. Before certain special examinations such as vitamin level testing, doctors may require continued use in order to assess the actual condition. For preoperative coagulation function tests, the intake of vitamin K should strictly follow medical advice. Vitamin supplements should be discontinued 3 days before the physical examination and fasting for 8-12 hours. On the day of the physical examination, vitamin tablets can be carried and taken after completing fasting blood tests, abdominal ultrasound, and other fasting items. For those who take vitamins on a daily basis, it is recommended to have a physical examination in the afternoon and supplement nutrients promptly after completing the fasting program in the morning. Maintaining a regular daily routine before the physical examination, avoiding strenuous exercise, and having a light diet can help obtain accurate test data.