What are the characteristics of a person with panda blood, and the physical characteristics of a per

Let's take a look at the rare blood type in humans, panda blood. Panda blood is a rare blood type that we are familiar with. So, what exactly does it feel like for someone with this blood type? Are they particularly in the **?

The physical characteristics of people with panda blood are no different from normal people. Panda blood is Rh-negative blood, Rh-negative blood type is a kind of Rh blood group system, Rh blood group system is the most clinically significant blood group after the discovery of ABO blood group, and it is also one of the most complex blood group systems, more than 99% of people in China are Rh positive, indicating that panda blood is very rare.

Human erythrocyte blood groups are composed of more than 20 blood group systems, and ABO and RH blood groups are the two blood group systems most closely related to human blood transfusion.

RH is the first two letters of the foreign name of rhesus macaques, and when Landsteiner and other scientists did animal experiments in 1940, they found that rhesus macaques and most human red blood cells have antigenic substances of rh blood group, so they were named.

The RH blood group system is the most complex type of red blood group system that has been classified, and if the surface of the red blood cell contains the D antigen, it is called RHD positive, and vice versa.

There is no difference between people with panda blood and normal people, only the blood type of the body is relatively rare, and it is not easy to find the same blood type when encountering physical diseases.

A person's blood group is usually determined by antigens made up of certain heritable glycoproteins and sugar chains on the surface of red blood cells. As of now, more than 30 blood group systems like this have been discovered.

For example, the ABO blood group system that everyone is most familiar with is composed of A, AB, B, and O. The Rh blood group system is the most complex of the classified red blood cell blood group systems.

In the RH system, if the surface of a red blood cell contains a D antigen, it is called RHD positive, and vice versa.

Existing scientific studies have found that RHD-positive people account for the vast majority of the world's population, and RHD negative is very rare, for example, in Asia, more than 1,000 people are RHD-positive, and less than 5 out of 1,000 people are RHD-negative, so it is called "panda blood".

Blood Transfusion Safety Precautions:

1. In the case of emergency blood transfusion, patients with negative Rh can be transfused with the same A, B, O, and Rh positive blood for emergency use. In this case, the patient may be sensitive to RHD, but the risk of an immediate hemolytic reaction is very small.

2. If there is no blood of the same blood type available for Rh-negative blood recipients, Rh-negative red blood cells of type O are an option.

3. As long as the rh-negative plasma is consistent with the red blood cell blood test of the recipient, it can be arbitrarily transfused to the rh-positive patient.

4. Rh antigen also does not exist on the surface of platelets, and products containing red blood cells below milliliters can be used for platelet transfusion to Rh-negative patients.

5. When the rh-positive neonatal jaundice of an Rh-negative mother needs exchange transfusion, Rh-positive blood cells can also be used to replace it (most of the anti-D antibodies absorbed by the mother will be removed during the exchange transfusion process, so it will not cause further effects).

6. Each patient will do an antibody screening test before blood transfusion, and those with anti-D antibodies (1/300,000) should be transfused with rh-negative blood cells, but in case of emergency, rh-positive blood can also be transfused.

The above content reference: Encyclopedia - Panda Blood.

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Ninety and seven percent of Chinese are rh-positive.

Rh-negative blood accounts for only 3 per 1,000, and if ABO is divided, it is one in 10,000 people.

Isn't it very rare? Some people call this blood type "panda blood", which means scarce and has nothing to do with pandas.

Rh negative blood, also known as panda blood, refers to rh negative blood, a very rare blood type, because it is extremely rare, it is called "panda blood".

There are a variety of classification methods for human blood types at the same time, such as the most commonly used ABO blood type, and there is one called RHD blood type, the first one is not mentioned, this RHD blood type 1 is generally positive for people and only a very few people show negative, this 1 small number of people's blood is the legendary "panda blood".

Among the Han people in China, in the ABO blood group system, A, B, and O account for almost 30% each, while AB blood type is less than 10%.

Among the Han people in China, in the RH blood group system, positive accounts for and negative accounts for.

Therefore, among the Han people in China, the probability of Rh-negative AB blood type is 1 in 10,000, so it is called a rare blood type, which is the so-called panda blood type.