B Positive Blood Type Antigens

March 25, 2021

Individuals with type ab can receive any abo blood type. Almost half of the uk population 48 has blood group o.

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About 9 of the population have b positive blood.

B positive blood type antigens. After birth each person s plasma cells start producing antibodies against the a or b antigen that is not present on his or her rbcs. The red blood cells have both a and b antigens but the plasma does not contain anti a or anti b antibodies. It is important to make a distinction between the rarest of the eight most common.

Having the presence of b antigen and rh antigen b positive blood type can be compatible with b b o and o. Type ab blood has both a and b antigens on rbcs. The abo blood group system is used to denote the presence of one both or neither of the a and b antigens on erythrocytes.

Your blood type is inherited from your parents much like your eye and hair color. As a result people with type a blood develop anti b antibodies. When you say you are blood type a what you are telling people is that the cells in your body make antibodies only to type b antigens the a type surface antigens on the cells are not recognized.

In addition to the a and b antigens there is a protein called the rh factor which can be either present or absent creating the 8 most common blood types a a b b o o ab ab. B can only be given to b and ab. A mismatch very rare in modern medicine in this or any other serotype can cause a potentially fatal adverse reaction after a.

Individuals with type a blood without any prior exposure to incompatible blood have preformed antibodies to the b antigen circulating in their blood plasma. Type b blood has b antigens on rbcs. There are four major blood groups determined by the presence or absence of two antigens a and b on the surface of red blood cells.

A and b antigens only represent two of approximately 600 other known antigens that can differentiate blood types. In human blood transfusions it is the most important of the 38 different blood type or group classification systems currently recognized. These surface antigens can be attached to the surface of your blood cells more specifically to the plasma membrane surrounding the cells or to proteins or lipids anywhere in your body.

Blood group o has no antigens but both anti a and anti b antibodies in the plasma. Blood group o is the most common blood group. In type o blood neither a antigen nor b antigen is present.

Blood group ab has both a and b antigens but no antibodies. An individual with a b positive blood type has both antigens b and rh on the blood. By the time you are six months old you will have antibodies against antigens lacking in your blood.

A transfusion with the use of any other blood type can result to an immune response. Blood group b has b antigens with anti a antibodies in the plasma. These antibodies referred to as anti b antibodies will cause agglutination and hemolysis if they ever encounter erythrocytes with b antigens.

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