Is there such a norm for blood drawing? Is the venous blood test accurate?

This is related to the habits of clinical blood collection personnel, but it is certain that the needle must be disposable, whether it is a needle or a needle tube, it should be disposable. If he sterilizes for a short time and the needle doesn't touch anything, it's not a big problem, but it's not standardized.

The procedure to draw your blood is a violation of aseptic protocols. But the probability of contracting HIV is too small.

The doctor explained that he was right. There is a violation of the operating process.

A blood test is now generally referred to as a routine blood test. Generally, through the routine blood examination, you can know whether there is inflammation in the body, that is, whether the white blood cells are high; You can also know whether the blood cells in the body are normal and whether there are symptoms of anemia; You can also know whether the blood lipids in the body are thick and whether the blood sugar is high. If abnormalities are found, they can be treated in time**.

When the blood is drawn, it is generally required to have an empty stomach, so you should not eat after 10 o'clock in the evening before the blood draw, and not only can you not eat in the morning of the blood draw, but you should not even drink water.

When drawing blood, you must choose some large hospitals, and at the same time, you should avoid cross-infection, do not drink alcohol, do not smoke, do not drink water, and should draw blood on an empty stomach, so that it will not affect the results of the test.

Do not drink water before the blood is drawn, and it should also be done on an empty stomach so that it does not affect the results of the test, do not smoke, and do not drink alcohol before the test.

1.Don't drink alcohol. 2. Fasting is required on the day of blood testing.

The night before the blood draw, be sure to eat a light diet and try not to eat or drink water after 8 p.m. the night before. 3. When taking blood for testing, you must pay attention to relaxation.

<>Routine blood tests are a laboratory test in medicine, which is an effective means for doctors to diagnose diseases. It is a general term for the measurement of blood cells in peripheral blood, including the measurement of red blood cells, hemoglobin, white blood cells, white blood cell differential, and platelets. The most common laboratory test used by doctors to diagnose a disease is a complete blood test.

Peripheral blood is collected by earlobe blood or finger ends, and newborns sometimes have blood taken from the heel. After the blood collection site is disinfected with an alcohol cotton ball, the blood will flow out of the wound by a lancet needle to a depth of about 2 mm, and then the blood is collected with a capillary, and the blood is blown into a certain proportion of the diluted solution, and the indicators are measured by a hemocytometer.

The indicators in the blood routine can be roughly divided into three categories:

The red blood cell system, including red blood cell count and hemoglobin. The normal number of red blood cells should be 4 5 1012 liters, if it is less than 4 1012 liters, or when the hemoglobin is less than 110 grams, it is considered to be anemia, and the doctor will understand the anemia and the degree of anemia caused by various causes according to the ratio of red blood cells and hemoglobin. (2) Leukocytes and leukocyte differential.

The total number of white blood cells and the differential white blood cells of different sizes can be measured from the blood cell count, but to really understand the white blood cell differential, a blood smear is made, then stained with Wright staining, and finally polymorphonuclear white blood cells, rod white blood cells, lymphocytes, monocytes, etc. are judged and counted under the microscope.

When doctors encounter a child with various fevers and suspect an infectious diseaseGenerally speaking, an increase in the total number of white blood cells above 10 109 liters or polymorphonuclear leukocytes above 50% and 60% is considered to be a bacterial infection, while the total number of white blood cells is less than 10 109 liters and polymorphonuclear leukocytes are less than 50% may be a viral infection, so the decision to use antibiotics ** or antiviral** can be made. However, when you are young, frail, or extremely ill, these results may have special circumstances or abnormal reactions, and a comprehensive judgment is required.

Blood needs to be drawn, generally speaking, the consistency of blood lipids and high blood pressure need to be drawn for blood routine, blood routine can check the health of the blood

When we have a cold and fever, or suspect that there is any inflammation in the body, we need to draw blood and take a look at the blood routine.

Routine blood tests must be done to obtain bleeding. A lot can be detected in the blood routine. Yes. Yes, I don't have to worry about it. Platelets are a lot less, and so on.

When you have a cold, you need to do a blood routine, and you need to analyze whether it is a viral infection or a bacterial infection; In the event of an accident, laboratory tests are required because the blood type must be clear and ready for blood transfusion; The elderly experience that it is necessary to monitor the blood items and whether there is hyperlipidemia.

Of course, the first point of blood routine examination is to need a blood test to see if your blood is normal, the second point should be checked according to your white blood cells to achieve good results, and the third point is that the blood routine test should be carried out according to the specific test results.

1 Age: 18-55 years old.

2 Weight: 50 kg for men and 45 kg for women.

3 Blood pressure: 12-20 8-12kpa, pulse pressure difference: 4kpa or 90mmHg-140mmHg 60mmHg-90mmHg, pulse pressure difference: 30mmHg

4 Pulse: 60-100 points, 50 points for athletes with high endurance.

5. The body is stupid and the temperature is normal.

6 **No yellow staining, no wound infection, no large-scale ** disease, no obvious swelling of superficial lymph nodes.

7. There is no serious disease in the facial features, no yellow staining of the sclera, and no enlargement of the thyroid gland.

8. No severe disability of limbs, no serious functional impairment and no redness and swelling of joints.

9 Chest: normal cardiopulmonary (cardiac physiological murmur can be regarded as normal).

10 Abdomen: The abdomen is flat and soft, no mass, no tenderness, and the liver and spleen are not enlarged.

The report will be marked out if it is abnormal, and the normal range is also at the back, and the reagents and instruments used in each hospital have certain differences.

Hello, it is best for you to consider this situation by yourself, you can draw venous blood, or you can prick your fingers. The blood in the fingers hurts even more. It is recommended that you go to the hospital for examination as soon as possible, if you need to check other conditions, it is best to check together, venous blood draw is good, it is best to treat the specific situation, if you do liver and kidney function tests or other examinations, they are all together.

Most of the blood tests are drawn from venous blood, such as liver function, kidney function, biochemistry and other blood tests, which are due to the superficial location of the veins, which can be seen more clearly, the blood volume in the blood vessels is large, and the pressure in the lumen is small, which is convenient for operation and needle eye hemostasis after blood drawing. Voluntary blood donations are also drawn from venous blood. Sometimes arterial blood must be drawn if special tests are required, such as blood gas analysis, which is commonly used in respiratory medicine.

Whether arterial blood or venous blood is drawn, it must be done strictly according to the aseptic operation protocol.

If you feel that there is an abnormality, it is recommended to recheck it.

Routine blood tests are the most general and basic blood tests. Includes: 1:

The so-called blood routine can be hung in any department! Generally, the amount of blood collected is less than one milliliter! If you want to have a medical checkup, you can go directly to the medical checkup department!

In the outpatient clinic, almost 10 ml is enough, and blood type, blood sugar, liver and kidney function, ion, AIDS, syphilis are measured.