Should I draw blood from a vein or an artery?

I believe everyone is clear about whether to draw blood from a vein or an artery. This is mainly because the blood circulation in the arteries is faster. If blood is drawn from an artery, it can easily cause excessive bleeding and changes in blood vessel pressure. Therefore, blood is generally drawn from a vein. Venous blood drawing is because the blood circulation in the veins is slow and it is easy to stop bleeding. Venous blood can also be used to check whether there are any diseases or blood diseases in the body.

Blood tests usually involve drawing blood from a vein because veins are easier to find and it is easier to stop bleeding if a vein is punctured. Arteries are usually buried deep under the skin, making it difficult to stop bleeding. But sometimes arterial blood is drawn when necessary.

Venous blood drawing is a commonly used method in medicine to test the normality of a patient's body fluids. Many physical disease examinations are related to this. Many times we should know why venous blood is the sign that our body is normal. In fact, its origin is very early. In ancient times, when medicine was not well developed, a method of blood transfusion was popular. The purpose of this was to allow critically ill people to get timely improvement. Ancient medicine said that blood is the foundation of the body and is the fusion of human essence and energy.

Why can we judge whether a person is sick by the color of the blood on his face? The term blood and qi has since been recorded in medical techniques. Another issue that needs to be explained is that our pulse is divided into veins and arteries. Veins are blood after metabolism. Many metabolic substances can be detected from this blood, and these substances can directly reflect the internal situation of the human body.

Also, I want to explain that we cannot draw blood from the artery. This is very necessary. The blood in the arteries is under strong pressure and flows at high speed. It is a highway that transports substances needed by the body. This road cannot be blocked, because if it does, the pipe will burst. Things like cerebral hemorrhage are caused by this. This is very dangerous. In medicine, we draw blood from the vein in order to use sampling and testing methods to determine physical health.