Does it hurt to draw blood from a vein?

No matter what disease a person has, blood drawing is necessary before going to the hospital for treatment. Because blood tests can tell whether the body is infected by a virus or invaded by bacteria. Therefore, blood test is a must, and usually symptoms of cold and fever also require blood test. I often draw blood from a vein, so does it hurt?

Blood drawing is an important means of blood specimen collection. It is mainly used to detect various blood indicators to diagnose and judge the disease and prognosis. Generally, venous blood from the limbs is taken. The blood drawing test is performed by a nurse. Generally, the pain is not very obvious and can be tolerated. Don't worry.

Precautions for venous blood sampling

If people suffer from some diseases and need to go to the hospital for examination, doctors will generally ask patients to undergo some examinations and diagnose what disease the patient has based on the results of these examinations. There are many such inspection methods, and different inspection methods inspect different items. These are the products of scientific development. Venous blood collection is a commonly used operation, so what are the precautions for venous blood collection?

1. The patient should not eat too greasy food, do strenuous exercise, drink alcohol, overwork, stay up late, etc. the day before blood drawing.

2. If a biochemical test is performed, blood drawing is generally required on an empty stomach. The patient must prepare according to the doctor's instructions. Some tests require fasting and abstaining from water after 10 o'clock the night before. The patient must comply to avoid errors in the test results.

3. When performing venous blood collection, do not wear clothes with cuffs that are too small, as this will hinder blood collection and cause hematoma in the patient's arm.

4. Avoid being too nervous when drawing blood from a vein, and never dodge during puncture, otherwise blood stasis will easily occur.

After blood is drawn, you must follow the nurse's instructions to take measures to stop bleeding. For some patients, improper compression may cause congestion, and this should be avoided as much as possible.