The doctor always asks us to draw blood when we see a doctor. What happened to the blood drawn?

The doctor always asks us to draw blood when we see a doctor. What happened to the blood drawn? Go to the hospital, no matter what the disease is, the doctor will always ask you to draw blood, and many people are even scared. After all, it's scary to draw so much blood from blood vessels, and even think that your illness is very small, so you need to draw blood anyway. Many people will be very curious and confused about this. Why do doctors always ask people to draw blood when they are sick? What's the use of pumping so much blood?

Under normal circumstances, after studying medicine to draw blood for patients, routine blood examination is needed. This is the most important and critical function. It is to better check whether the white blood cell count in the body is normal, and naturally check other components related to physical and mental health contained in the blood. Usually, according to this check, you can see if you are sick together.

1. Will routine physical examination and blood drawing be harmful to our health?

An adult's body contains 60% water and 7% blood. The content of plasma is 40ml-50ml, so an adult has 4000ml-5000ml of plasma, and the commonly used plasma for blood test in each hospital is only 30ml-40ml, which is better than nothing for everyone's health. Pumping this blood won't do any harm to your body.

2. Why do you have to smoke a lot of pipes when you smoke? Is it okay to just smoke one tube?

Why do we have to take 3-4 tubes during the whole blood test in the hospital, but we can't just take one tube? The answer may be no.

Because, in the case of inspection, we must check whether the body index value is different. Some examination items must add unique medical ingredients, some must add coagulation functional ingredients, and some only need to check the contents of various ingredients in the blood without adding anything. Generally speaking, it varies according to different inspection items. In some cases, the number of tubes that must be drawn blood is large, and the number of tubes that must be drawn blood is determined according to the inspection items.

3. Where did the blood not used up in the routine physical examination come from? Is it sold in the hospital?

Some people may ask, where does the blood pumped by the hospital come from every day? Is it possible to be used by the hospital for other main purposes, is it properly disposed of, and will it cause environmental pollution to the natural environment? It is not easy. The blood pumped out every day will be sent to the laboratory of the hospital. After the test report comes out, there will be a unified solution for waste blood and there will be no environmental pollution.