Today is my Article about Blood

Today is my Article about Blood

My Topic is ABO Blood Group

ABO Blood group System:

photo arranged by auther

Discovery: It was discovered by Karl and steiner in 1901. Different types of blood groups are due to the specific antigen present on the surface of red blood cells. Which are antigen "A" and "B"

Blood group "A":

A person have blood group A contain antigen "A" and antibodies "B".

Blood group "B":

A person have blood group B contain antigen "B" and antibodies "A".

Blood group AB:

A person have blood group O contain no antigen on RBCs but have both antibodies A and B.

photo arranged by auther

Blood Transfusion:

The transfer of blood from healthy person to a patient is called blood transfusion.

Due to transfusion of opposite blood group clumpings occure in blood cells which cannot pass in microscopic blood capillaries and it cause death. The same is true for a person with blood group B transfused with blood group A. Anti-A antibody present in recipients blood will coagulate with RBCs having antigen A of donated blood.

Rh blood group system:

photo arranged by auther

Discovery:

This system was discovered by Karl land Steiner in 1930's. This system is based on the presence and absence of another antigen called Rh factor or Rh antigen(first discovered in Rhesus in monkey) on RBCs.

Positive or negative blood group:

If Rh factor present on RBCs blood group will be positive. If Rh factor is absent on RBC, the blood group will be negative.

Blood transfusion in Rh system:

Rh+ve blood group can be transfused to Rh+ve recipient because both have Rh antigen. Similarly Rh-ve blood group can be given to Rh-ve donors. If an Rh-ve person receives Rh+ve blood, he will get Rh antigen.

His blood will produce anti-Rh antibodies against Rh antigens and it will result in coagulation.

But an Rh+ve person can receive Rh-ve blood only if donors blood (Rh-negative) has never been exposed to Rh-antigen and does not contain any anti-Rh antibody.

People who have AB+ ve blood group universal recipient and O-ve blood group are universal donors.

*Recipient Blood group:

A B AB O Rh+ Rh-

*Donor Blood group:

A and O B and O A,B,AB,O O only Rh+, Rh- Rh-

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