Do you know why a lot of illnesses go to the hospital for blood test?Which inspections must be empty?Speak clear at one time!

In the hospital, it is too big to be hospitalized, to a cold and fever, and you need to check the blood first.Looking at such a blood -drawn inspection project, I can’t help but doubt: Why do many diseases need to test blood first when they go to the hospital?What diseases can be found?

Why do the hospital always take blood?

What are the effects of the project on the blood test form?Ye Xiongwei, deputy chief technician of Zhejiang Hospital Medical Inspection Division, introduced the role of different common blood tests in the WeChat public number of the hospital in February 2023.①

1. Blood type

You can check the antigen type on the surface of the red blood cells in the blood, that is, the well -known ABO blood type and RH blood type. It is important to clarify the blood type when it is needed for emergency blood transfusion and surgery.

2. Blood routine

Routine blood tests can be preliminarily analyzed that patients with blood system diseases such as anemia, leukemia, and special thrombocytopenia can be analyzed.

3. Blood flow changes

Mainly detect the viscosity of blood, judge the circulation of blood flow in the vascular vascular, and assist the diagnosis of risk factors such as hyperlipidemia, hypertension, diabetes, and thrombosis.

The abnormal blood flow change is one of the precedents of cardiovascular and cerebrovascular diseases (stroke, myocardial infarction).The examination of red blood cell sedimentation rate can also help diagnose infectious diseases, rheumatism and immune diseases, tumors, etc.

4. Biochemical project

"Consensus on the Basic Project of Health Examination" suggested that the four basic biochemical inspection projects are necessary, including liver merit, kidney skills, blood lipids, and blood sugar.

Other unconventional biochemical items include: myocardial enzyme (whether there is myocardial infarction), amylase, lipase (check whether the pancreatic gland is normal), potassium, sodium, chlorine, calcium (check whether the electrolyte disorders) and other items can beSelect, preliminary judgment which organs or systems do the patient have problems.

5. Immune check

Immuno -examination generally includes: triathlon, rheumatoid, immunoglobulin, lymphocyte sub -group, autoral antibody, serum tonic, tumor marker, infection (hepatitis B, hepatitis C, syphilis, AIDS), etc.

Preliminaryly determine whether there are hyperthyroidism, hyperthyroidism, rheumatism system diseases, tumors, and common infectious diseases. Among them, hepatitis B, hepatitis C, syphilis, and AIDS are also called "first four items". Generally, patients must be surgery or invasive operation.Check it.

6. Tumor screening

It is mainly used as auxiliary examination, used for the auxiliary diagnosis and early detection of various cancers, and uses various types of tumor markers to make a basis for cancer.

7. Four concretions

If the patient is pregnant or has an unknown bleeding and before surgery, the coagulation function is generally performed. The most commonly done is four coagulation, including the plasma coagonase original time (PT), the activated part of the coagulation activation time (APTT), the coagulation enzyme enzymesTime (TT) and fibrin (FIB).

Which common items need to be bloody with empty stomach?

Some blood tests are currently not forgotten to remind everyone that everyone must be detected on an empty stomach.Which common items need to be empty?The Sichuan Provincial Disease Prevention and Control Center answered in June 2022 in its WeChat public publicity article.②

1. Liver function examination

As a conventional indicator of various medical examinations, diseases such as acute chronic hepatitis, liver cirrhosis, liver function damage, including glutamic acid metastases, cornine metastases, gifdaic acid metastases, total protein, albumin, etc.The liver is the main digestion and absorption of metabolic organs of the human body. Therefore, eating has a great impact on liver function tests and requires an empty stomach.

2. Blood glucose and blood lipid examination

Blood glucose includes empty blood glucose, 2 hours of blood sugar after meals, etc. Its reference value and significance are different.Food is the main source of human sugar. Be sure to prepare according to the doctor’s order when checking.Blood lipids include triglyceride and total cholesterol, and the dietary condition has a greater impact on it, so it must be empty when checking.

3. Renal function examination

The kidneys are an important organ that exclude metabolic waste, balanced water, and electrolytic acidity. The renal function tests mainly include urea, uric acid, creatinine and other indicators.Empty examination is usually required.

4. The following common blood check items require an empty stomach:

(1) Serum science test: such as tonic, anti -nuclear antibodies, anti -link bacteria -soluble hemorrin "O" testing, etc.

(2) All kinds of blood flow change indicators

(3) Serum protein electrophoresis

(4) Carbon dioxide binding force

(5) Various serum enzymes, etc.

It is worth noting that if you need an empty stomach before drawing blood, the time should be more than 8 hours.Eat normally the day before, avoid fullness, and try to be as light as possible.At the same time, avoid taking drugs that interfere with the results of blood check, avoid strenuous exercise and stay up late.

Drinking water before blood drawing usually does not have a greater impact on the test results, so you don’t have to worry too much.

I had blood in the morning, why did I pump again in the afternoon?

Sometimes I have blood in the morning, and I still need to continue to draw blood in the afternoon. Why ca n’t you finish it at one time?

Wang Xing, deputy chief physician of the Department of Cardiovascular Department of the 983rd Hospital of the Lianqin Pure Force, explained in the Health of the People’s Daily in December 2020 that some projects need to monitor the fluctuations in a period of time, so they need to repeat blood on the same day.③

For example, myocardial enzyme -related myocardial enzymes are completely likely to be drawn in the morning, and they have to be drawn in the afternoon.

Because when diagnosed with myocardial infarction or highly suspected myocardial infarction, the myocardial enzymes of blood testing at this time cannot be ruled out if it is normal, and the myocardial infarction is not eliminated.Because myocardial enzymes change over time, especially within 24 hours of myocardial infarction, there will be obvious changes, so it needs to be drawn multiple times.

Another example is to check the blood sugar series. After three meals, you need to take three meals and after three meals.

For example, the blood oxygen is low, and the blood oxygen saturation level needs to be observed in a timely manner, and it may have to be drawn once in a few hours.

Therefore, it may be repeatedly drawn on the same day when it is affected by the disease within 24 hours, especially when the condition is unstable.

Health Times

Liaoshen Evening News Institute of Health

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