Analysis of the traits of blood type O, what does blood type O mean

Blood type O is divided into two blood types: Rh-negative and Rh-positive, most of which are Rh-positive and a small number of Rh-negative, which is what we often call panda blood. Blood type O refers to the absence of type A or B antigens on the surface of human red blood cells. Their serum produces antibodies to both antigens.

Therefore, if the antibodies in the donor's blood are isolated before receiving the blood, the person with blood type O is a "well-suited blood donor". However, they can only accept blood from the same blood type, and people with type O can only accept blood from type O. Basically, type O is the most common blood type in the world.

A genetic trait expressed by experts in the form of blood antigens is called blood type, and there are four common blood types such as A, B, AB and O, and rare blood types such as Rh-negative blood type, MNSSU blood type, P blood type, and D deficiency blood type.

Among them, type O blood is divided into two types: Rh-negative and Rh-positive; Most people in life are Rh positive, few people are Rh negative, because of its rarity, we also call it panda blood, if you find that you are negative blood must go to the hospital blood bank to file Oh!

Rh-positive type O can be transfused to Rh-negative type O, and Rh-negative type O can be transfused in small amounts to Rh-positive type O, type O blood is also known as universal transfusion, and type AB blood is also known as universal blood recipient.

Blood type O is a common blood group that is a blood type that does not contain either a antigen or a B antigen on the surface of red blood cells. Universal blood transfusion, but because the plasma contains anti-A antibodies and anti-B antibodies, it may cause different degrees of red blood cell hemolysis in the recipient.

Blood type O cannot be arbitrarily transfused to other people. Blood types can be divided into type O, type A, type B, and type AB. Type O, type A, type B, and type AB can also be divided into Rh-positive blood type and Rh-negative blood type.

For example, if Rh type O is positive, you should not be transfused to any blood type that is Rh negative. Only small amounts can be transfused to any blood type that is positive for Rh. Because there is no A antigen and B antigen on the surface of red blood cells of type O blood, red blood cells washed by type O blood can be transfused to patients with type A, B, and AB when the main side is matched.

However, if the plasma red blood cell preparation containing type O blood is transfused into the body of patients with type A, B and AB, it may lead to adverse reactions of different degrees of immunity and hemolytic transfusion in the recipient.

You can give blood transfusions to anyone.

Blood type O is one of the common blood types, which refers to the blood group that does not contain either A antigen or B antigen, and is known as a "universal blood transfusion".

Blood type O refers to the absence of type A or B antigens on the surface of human red blood cells. Their serum produces antibodies to both antigens. Therefore, if the antibodies in the donor's blood are isolated before receiving the blood, the person with blood type O is a "well-suited blood donor".

However, they can only accept blood from the same blood type, for example, a person with type O can only accept blood from type O. Basically, type O is the most common blood type in the world.

The earliest known blood group system is the ABO blood group system. In 1900, Carl Landsteiner of the Institute of Pathology of the University of Vienna in Austria discovered that the serum of healthy people has a coagulating effect on the red blood cells of different human individuals. If serum and red blood cells taken from different people are mixed in pairs, they can be divided into three groups: A, B, and C (later renamed O).

Later, his pupils Decastello and Sturli discovered a fourth group, group AB.

A few years later, Landsteiner et al. discovered other independent blood group systems, such as the MNS blood group system, the RH blood group system, etc. In 1930, Landsteiner was awarded the Nobel Prize in Physiology or Medicine.

Over the decades, new blood group systems have been reported, and the International Association for Blood Transfusion, founded in 1935, is responsible for identifying and naming them. The 30 recognized human blood group systems include more than 600 antigens, but most of them are very rare.

The discovery of blood groups has created new disciplines such as immunohematology and immunogenetics, which are of great significance to clinical blood transfusion. Blood group systems were also widely used in forensic science and paternity testing, but have been gradually replaced by more accurate genomic methods.

People with blood type O are classified according to A, B, O, AB blood groups, and are considered to be "universal blood transfusions" among various blood types. In fact, blood type O is not the real universal blood! Because there are no A and B antigens on the red blood cells of type O blood, the red blood cells of blood group O can be transfused in small amounts to patients with types A, B, and AB when the main side is matched.

However, if the plasma of type O blood contains anti-A and anti-B, if the red blood cell preparation containing type O plasma is transfused into the body of patients with types A, B, and AB, it will cause different degrees of immunological hemolytic transfusion adverse reactions.

Chinese name Blood type O blood type O type Another name universal blood transfusion Related laws "Clinical Blood Transfusion Technical Specifications".

Directory. 1 Not a panacea.

Not a panacea. The "Technical Specifications for Clinical Blood Transfusion" issued by the Ministry of Health clearly stipulates: "Red blood cells containing plasma type O.

The preparation is tested for cross-matching prior to transfusion. "How can red blood cell preparations containing type O plasma be transfused when they are cross-matched with blood of type A, B, and AB? In fact, if the recipient's blood contains irregular antibodies against other antigens of a bag of type O red blood cells, the bag of type O blood cannot be transfused into the recipient.

It can be seen that type O blood is not universal blood, and the outdated concept that type O is universal blood should be thoroughly updated, especially in some small hospitals that carry out blood transfusion, can not violate the provisions of the Ministry of Health's "Clinical Blood Transfusion Technical Specifications", and use type O blood to infuse patients with type A, B, and AB to avoid medical accidents, causing physical damage to patients, and bringing reputation and economic losses to the unit.

There are natural antibodies in the ABO blood group system, most of the natural antibodies are IgM, have large molecular weight, and cannot pass through the placenta, so pregnant women whose blood type does not match the baby's blood group, the ABO blood group antibodies in the body generally cannot reach the fetus through the placenta, and will not cause the fetal red blood cells to agglutinate and destroy.

You're asking how blood types are divided. Blood type is a genetic trait that manifests itself in the form of blood antigens. In a narrow sense, blood group refers specifically to the difference in red blood cell antigens between individuals; However, it is now known that in addition to red blood cells, there are antigenic differences between individuals in white blood cells, platelets, and even certain plasma proteins.

Therefore, blood grouping in a broad sense should include the differences in antigens of each component of the blood between individuals. Often, people's knowledge of blood type is often limited to ABO, blood type, and blood transfusion problems. There are many types of human blood types, and each blood group system is determined by genetic factors and has immunological properties.

The most common blood type is ABO blood group (divided into four types: A, B, AB, O). This is followed by the Rh blood group system (mainly divided into Rh-positive and Rh-negative). The second is the MN and MNSS blood group systems.

According to clinical testing at home and abroad, more than 30 human blood types have been found. The commonly used blood group is ABO (divided into four types: A, B, AB, and O).

There are two types of blood type: Rh-negative blood and Rh-positive blood. Rh-positive blood is more common in the population, and Rh-negative blood is also known as panda blood.