Blood Type Rules

October 26, 2020

The proof of this is in our blood. By the time you are six months old you naturally develop antibodies against the antigens your red blood cells lack.

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Any inappropriate match with the rh and abo blood types causes the most serious and life threatening transfusion reactions.

Blood type rules. For instance a person with a blood type will have anti b antibodies and a person with b blood type will have anti a antibodies. The human abo blood groups were discovered by austrian born american biologist karl landsteiner in 1901. And there was a 50 chance she d get an a and an o 25 for getting an a from each of you again making her blood type a.

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. Our immune system recognizes another blood type as foreign and attacks it if introduced in the body causing a transfusion reaction. Blood typing is a test that determines a person s blood type.

What are the general rules for transfusions. See information here there are basically four primary common blood types. Not all blood types are compatible.

Blood types classified according to the abo system have the following specific characteristics and consequences with regard to transfusions. The test is essential if you need a blood transfusion or are planning to donate blood. There are four different abo blood groups see table1 determined by whether or not an individual s red cells carry the a antigen the b antigen both a and b antigens or neither.

So it was a 1 in 4 chance for your daughter to be type o certainly not a rarity. People with type a blood may only receive type a and type o blood. Landsteiner found that there are substances in the blood antigens and antibodies that induce clumping of red cells when red cells of one type are added to those of a second type he recognized three groups a b and o based on their reactions to each other.

For an example let s take a look at some of the rules of blood type genetics for the population of the united states. The blood grouping system is pivotal in blood transfusion. Also introducing type o blood into an individual with type a b or ab blood will nevertheless introduce antibodies against both a and b antigens as these are always circulating in the type o blood plasma.

The abo blood group is the most important of all the blood group systems. The ab blood type has both a and b antigens and the o blood type has neither a nor b antigen. That should reassure your husband.

Other population groups have differing blood type statistics. People with type b blood may only receive type b and type o blood. This may cause problems for the recipient but because the volume of blood transfused is much lower than the volume of the patient s own.

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. There was a 25 chance she d get two o genes making her blood type o. People with type ab blood.

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