If you are still impressed with the biological knowledge you have learned, you should know that blood circulation is the largest circulatory system in the human body. The value of its existence is to ensure the progress of the body's metabolism, it can not only provide fresh oxygen and nutrients to the human body, but also use these substances for oxidation, and send harmful substances and toxins to the metabolic system for metabolism and detoxification.
This means that the body can only maintain a healthy state if the blood circulation system is operating normally.
Not only that, but the circulatory system is also of great significance for the diagnosis of diseases. When going to the hospital for disease screening, one of the most common screening items is a blood routine. Many patients do not understand this and believe that a blood routine examination is completely unnecessary.
So the question is, what is the role of blood routine screening, and is it valuable for the diagnosis of disease?
In fact, in the clinical view, the so-called blood routine examination is the most basic screening project. There are a variety of components in the blood, and their levels increase or decrease, which can reflect the underlying problems of the body. For example, the following indicators have certain reference value:
1. White blood cells
White blood cells are actually an important part of immune cells, such as granulocytes, lymphocytes, monocytes, etc. are all white blood cell types. If a pathological increase in the white blood cell count is found at the time of the examination, it is often a sign of the arrival of a disease such as acute infection, tissue damage, bleeding, leukemia, or uremia.
Abnormally low white blood cell counts may be associated with hematologic disorders, cirrhosis, certain infectious diseases, immune system disorders, and hypersplenism;
2. Hemoglobin
Hemoglobin is actually the main component of red blood cells, its job is to carry and transport oxygen, and hemoglobin also has the role of transporting carbon dioxide.
Clinically available data show that if hemoglobin shows a pathological increase, it may be related to factors such as bone marrow proliferative diseases, congenital heart disease, and pulmonary heart disease. If there is a decrease in pathology, it may be related to anemia, leukemia, massive blood loss and other factors;
3. Platelets
Platelets are important substances in the coagulation system, and the work it is responsible for is to cooperate with coagulation factors and play a role in coagulation. If the platelet index shows a pathological increase, it is likely to be a signal of the arrival of bone marrow growth disease, hemorrhagic thrombocytosis, chronic myelogenous leukemia, and some malignant tumors.
If the platelet count is abnormally reduced, it may be related to hematopoietic system injury, such as acute leukemia, aplastic anemia, etc.
That being the case, what will the hospital do when the remaining blood is examined?
Usually, after the hospital has tested a blood sample, the remaining blood is not immediately discarded, but is prepared as a backup. If the patient has doubts about the results of the test, the next test may be performed.
When the blood sample loses its function, it actually becomes medical waste, which will be uniformly disposed of and destroyed by the hospital, so you don't have to worry.
It is not difficult to see from the above content that although the blood routine is the simplest and most routine screening program, it may expose a number of hidden problems in the body.
All in all, the purpose of blood draw is to more comprehensively screen the body for diseases and point out the direction of examination to doctors. Therefore, when the clinic recommends that you have a blood routine examination, you should listen to the doctor's arrangement.