I don’t know if you have had such an experience. If you are not feeling well, go to the hospital to see a doctor. After asking a few questions, the doctor will ask you to do a blood test. Especially in hospitalized patients, several tubes of blood are drawn every three to five.

Many people dare not speak out, but they have complaints in their hearts, expressing confusion and doubts——

@Can’t live in your heart:

It’s been seven months since I was pregnant, I don’t know how much blood I have drawn, The kind that can’t be made up even after making up, was originally anemia, but now it is severe anemia.

@User Five:

to draw so much The blood should have been sold, or why so much is drawn, half a tube is enough, why do I need to draw a full tube, I can’t figure it out. It is really troublesome to see a doctor now. Blood tests are required every time. How could it be so complicated to see a doctor before, so that I dare not go to the hospital to see a doctor.

@mengruofeiyang:

not anemia, In the hospital, anemia will be extracted, and the body is already very bad, but the same extraction is still performed, and the hematopoiesis will not win.

So, what are the benefits of taking blood in the hospital? Why go to the hospital for blood tests?

I. What is the use of drawing blood? Why draw blood at every turn?

In fact, blood biochemical tests are an important part of clinical biochemical tests. Our blood hides a wealth of physiological information. By detecting blood components, we can know the physiological and pathological changes of the body. There are many blood test items, and the functions of different items are different. The common ones are: blood routine, blood biochemistry, four items of coagulation, and eight items before blood transfusion.

• Blood Routine: Learn about hemoglobin, white blood cells, platelets and other indicators, and determine whether there is anemia, infection or Abnormalities such as coagulation dysfunction;

• blood biochemistry: understanding electrolytes, blood sugar, blood lipids , liver and kidney function and other indicators. If the indicators exceed the normal range, it will affect physical health and require timely intervention;

• four coagulation span>: Understand coagulation function, prepare for surgery or investigate diseases, if coagulation function is impaired, surgery will have a greater risk of bleeding;

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In addition, there are blood type, cross-matching, D-dimer, C-reactive protein, erythrocyte sedimentation rate and other inspection items, which need to be checked according to the actual situation. situation to choose.

Someone asked why the blood has been drawn today and the next day One time? Does it need to be that often?

In fact, the reason is very simple, because people are alive, blood is also alive, and the disease is dynamic. Today’s blood may not be the same as yesterday’s blood, and some indicators have changed. For patients with more serious conditions, the purpose of frequent blood drawing is to observe the blood pattern to know whether there is electrolyte imbalance, Abnormal liver and kidney function, improvement of the condition, etc., so that the doctor can make a timely diagnosis and adjust the treatment plan.

For patients with mild symptoms, it is not necessary to draw blood every day.

In addition, some people question why doctors can’t just draw one tube of blood, but several tubes at a time. This is mainly due to the difference in blood draw items. Some patients need to check several items, and different test items need to add different reagents, use different colored test tubes.

2. Will frequent blood draw lead to anemia?

No need to worry about this issue.

The blood volume of a normal person accounts for 7%~8% of the body weight, and the blood volume is about 4000~5000ml. For example, a person weighing 60 kg has a blood volume of 4200~4800ml. about. Generally speaking, when a person loses more than 800ml of blood, they will appear pale, cold hands and feet, cold sweats, and weakness. , shortness of breath and other symptoms. When blood loss exceeds 1500ml, the blood supply to the brain is insufficient, resulting in dizziness, thirst, dizziness, irritability, and even coma.

When blood is drawn, the capacity of each test tube is 2~5ml. Even if 10 tubes of blood are drawn at one time and the total blood loss is 50ml, it is difficult to cause physical discomfort. Therefore, drawing blood does not cause anemia, and many people don’t have as much blood as a year’s worth of blood drawn in a lifetime.

Third, the blood that cannot be used up will be taken What are you doing?

Have you ever thought that the hospital draws blood from hundreds of thousands of people every day, but only a small part is used for each test, so the remaining blood, What is it used for?

It’s not what you think, in the hospital, the rest of the blood sample will not be immediately It usually takes 7-15 days to be disposed of., or even longer. If the doctor or patient has questions about the test data, the blood can be tested again.

Until no longer necessary, these blood samples will bedisposed as medical waste.Blood belongs< strong>Infectious waste needs to be sterilized by autoclaving or chemical treatment before being centrally disposed of by a garbage transfer company. The whole process is very strict and standardized.< /span>

Of course, in order to avoid illegal profit-making,< span>China’s laws and regulations: Prohibit all kinds of personnel from transferring, buying and selling medical waste; prohibiting illegal collection, dumping and stacking of medical waste in non-temporary storage locations; prohibiting mixing medical waste into other wastes and household wastes Garbage, otherwise it will be punished in accordance with relevant regulations.

Fourth, which foods can nourish blood?

Before introducing blood nourishing foods, let’s refute a rumor ——Many people think that red dates and brown sugar can nourish blood, but is actually wrong, they cannot nourish blood.

Essentially, blood cannot be directly supplemented. Blood supplementation usually refers to supplementinghematopoietic raw materials-iron.

Iron in the human body is divided into heme ironand < strong>non-heme iron, while the iron in red dates and brown sugar is non-heme iron, not only the content is low, but also difficult to be absorbed by the human body, unable to play a role in nourishing blood. In addition to iron, these two foods are also low in protein and cannot help replenish blood.

The food that can really nourish blood is animal food, such asPork liver, duck liver, pig blood, chicken blood, duck blood, red meat, etc., etc., their iron content is high, the body absorbs better, and people with anemia Can be eaten properly.

Do you understand those things about blood drawing?

# Yao Zero Zero Plan#