What are the effects of having a physical examination after eating

Physical examination is very important for people, especially for middle-aged and elderly people. If possible, you must have a physical examination on time. Physical examinations are usually done in the morning, and you cannot eat during the examination. But what are the consequences of having a physical examination after a meal? Because blood tests are required for many items, and these items require fasting. If you eat before checking, the data will be biased, especially for liver function tests, it is best to be done on an empty stomach.

1. What are the effects of having a physical examination after eating?

Generally, physical examinations include blood tests, which require fasting, otherwise blood sugar levels will increase, the gallbladder will contract, and intestinal gas will increase after activity, affecting the visualization of the pancreas and kidneys. Physical examination after meals mainly affects liver function and blood sugar in biochemistry. Under normal circumstances, blood sugar after meals is higher than before meals, and bilirubin levels will also rise. In addition, if abdominal color ultrasound is performed, the gallbladder contracts after meals, which is different from fasting. Other effects are not significant.

2. Eating affects the pre-employment physical examination

Eating breakfast will have a certain impact on the results of physical examination. Especially for liver function and blood routine, the impact is relatively small, while there is not much impact on electrocardiogram and chest X-ray. However, any influence does not necessarily lead to abnormal liver function. Some people have normal liver function after meals.

3. Things to note when taking a physical examination

1. Make preventive arrangements before the physical examination, avoid drinking alcohol the day before, limit high-fat and high-protein diet, and avoid using drugs that may affect liver and kidney function.

2. Ensure adequate sleep. Lack of sleep will lead to decreased immunity, thus affecting the results of physical examination.

3. Pay attention to your diet within 3-5 days before the physical examination. Do not eat foods with high blood content such as pig liver and pig blood. Fast completely after midnight the night before the physical examination. 4. On the day of the physical examination, you should wear clothes, shoes and socks that are easy to take off, and do not wear metal objects such as necklaces or jewelry.

5. Blood pressure, height and weight should be measured before the internal medicine physical examination.

6. You can eat only after having your blood drawn and having an abdominal ultrasound examination on the day of the examination.

7. When the physical examination includes thermal imaging and other items, you must empty your bowels and urinate before the examination and must not eat or drink.

8. Blood drawing and B-ultrasound of liver and gallbladder must be done on an empty stomach. When doing B-ultrasound of bladder, prostate, uterus and appendages, you need to hold your urine.

9. When undergoing an X-ray examination, female examinees who are pregnant or planning to become pregnant should inform the health examination service personnel in advance and undergo the X-ray examination with caution.