Should a regular physical examination be conducted on an empty stomach

Most routine physical examinations require fasting, while some items can be eaten normally. The fasting physical examination items that require fasting mainly include blood biochemistry tests such as blood glucose testing, blood lipid testing, and liver function testing. Fasting helps to obtain accurate blood index values and avoid interference from food components in test results. Medically, it is usually required to fast for 8-12 hours, during which a small amount of plain water can be consumed. For example, blood sugar testing is directly affected by food, and there may be a temporary increase in blood sugar after eating; Triglyceride levels in blood lipid testing are easily affected by dietary interference; Some enzymatic indicators in liver function testing may fluctuate due to diet.

The physical examination items that allow diet usually include blood pressure measurement, electrocardiogram examination, chest X-ray and other physical examination items. These checks mainly rely on instruments and equipment to obtain data, with little correlation with the digestive system. For example, blood pressure measurement focuses on vascular pressure status, electrocardiogram records cardiac electrical activity, and chest X-ray observes lung structure, all of which do not require fasting preparation. Urine routine examination usually does not require strict fasting, but it is recommended to collect the first mid morning urine to improve accuracy. Three days before the physical examination, one should maintain a light diet, avoid high-fat and high sugar foods, and refrain from drinking alcohol. On the day of the physical examination, bring medical records and wear loose clothing for easy examination. After completing the fasting project, it is recommended to eat in a timely manner and prioritize easily digestible foods such as bread, milk, etc. If you suffer from chronic diseases and need to take medication for a long time, you should consult a doctor in advance to see if you need to adjust the medication time. Elderly or physically weak individuals should pay attention to their own condition during fasting, and immediately inform medical staff when experiencing symptoms of hypoglycemia such as palpitations and sweating.