And through the number of red blood cells, we can see whether there are symptoms of anemia at present. At present, the development of some special diseases can also be judged by blood. Therefore, every patient should draw blood for routine blood examination when he is in hospital, which is the most basic examination.
And sometimes it takes a lot of tests to draw blood once. For example, you need to check two and a half hepatitis B before surgery, and this project is also completed by blood drawing. Therefore, there are usually several small tubes when blood is drawn at admission. In fact, the screening items are also different.
If it is during chemotherapy, the routine blood examination should basically be done once every three days, because doctors need to track the patient's situation in real time to see if the patient's current situation has improved.
The blood drawn by the patient will enter various departments for examination, and after the examination, the blood will be thrown into the trash can. Of course, blood is thrown into a specific trash can and treated as a medical waste.
So you don't have to worry that your blood may be sold or used for other purposes. Now hospitals are very formal, and it is basically impossible for this to happen.
In addition, blood is also a dangerous infectious substance. If discarded at will, there may be risks of environmental pollution and infection, and the hospital will handle it carefully.