What diseases can be detected by the five blood tests?

Routine blood test is the most basic blood test. Many people go to the hospital with a cold, and most doctors will ask them to do a routine blood test. Many people are puzzled, thinking that it is just a cold, why do they need to do a routine blood test? In fact, the white blood cell count in a routine blood test will increase after a cold, indicating inflammation in the body. Therefore, it is very necessary for the doctor to request a routine blood test. What diseases can be detected by the five items in a routine blood test?

A blood test is a routine examination item, usually performed by pricking the finger or the tip of the ear. So what can a blood test reveal? What is a blood test?

(1) Whether there is infection: Blood can be tested for viral infection and bacterial infection. The primary method of making a preliminary judgment is to determine whether the white blood cell count has increased. Since white blood cells in the body play a role in eliminating pathogens, in order to protect health, the normal value is (4-10)×109/L. It is generally believed that normal or decreased white blood cells indicate viral infection, while increased white blood cells indicate bacterial infection. However, this cannot be used as a basis for determining bacterial or viral infection, and can only be used to make a preliminary judgment. Leukocytosis is common in inflammatory infection, bleeding, poisoning, leukemia, etc. It reduces common cases of influenza, measles and other viral infectious diseases, as well as severe sepsis caused by drugs, radiation and some blood disorders.

(2) Whether the patient is anemic: Blood can be checked to see if the patient is anemic, mainly based on the hemoglobin content. Clinically, men with hemoglobin <120g/L, women with hemoglobin <110g/L, and pregnant women with hemoglobin <100g/L have anemia. Once this happens, we should further examine the exact cause and confirm the type of anemia, and then treat it symptomatically. Common anemias include iron deficiency anemia, hemolytic anemia, and aplastic anemia.

(3) Whether there are blood system diseases: Blood tests can check whether the patient has blood system diseases, such as hemophilia, thalassemia, hepatitis B, leukemia, etc. The early symptoms of blood diseases are very hidden and easily confused with other diseases, so they should be further confirmed through blood tests. Common symptoms include fatigue, palpitations and shortness of breath, loss of appetite, nosebleeds, bone pain, and even cold symptoms. ...

What are the blood tests? Blood tests are simple, but the conclusions drawn are based on different cellular parameters and there will be many different results. What are the items in the routine blood test?

(1) There are four items in the routine blood test: red blood cell count, white blood cell count, platelet count, and hemoglobin measurement. Each type of project can measure many parameters.

(2) Check the red blood cell count parameters: hematocrit, mean red blood cell volume, red blood cell body and distribution width, etc.

(3) White blood cell count test parameters include: lymphocyte count, intermediate cell count, neutrophil count, etc.

(4) Check the platelet count parameters: platelet pressure, mean platelet volume, platelet volume distribution width, etc.

(5) Hemoglobin parameters checked include: mean hemoglobin content in red blood cells, mean hemoglobin concentration in red blood cells, etc.