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How to determine blood type? | Health
How to determine blood type? Blood type is a classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells
Blood type is a classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells. Not all people are equal and the blood does not fit all people of the same blood type. It was only recently discovered, and until then the blood in an emergency , gave immediate transfusion regardless of the so-called blood group. Therefore, half of the patients were worse, and many have died.
recent studies have shown that there are different blood groups. to determine blood groups are needed red blood, cells donor and recipient blood serum. Serum is one of the blood plasma.
What happens when different groups of mixed blood? If one drop of blood that belongs to a group of blood or serum is added some dear blood, red blood cells the sljepljuju and it is called agglutination. In this case, red blood cells usually disintegrate or come to hemolysis of blood. using agglutination tests showed that in humans there are four blood types: A, A, B and AB.
Red blood cells do not aglutiniraju group O serum with any groups. In other words, blood group O can be given for each transfusion, regardless of blood type. why people are familiar with group O blood donors as a general. In group AB serum not aglutinira red blood cells of any groups, so that people with this blood type can receive blood of any group. These are general blood recipients.
We all inherit our blood group and we can not change throughout life. interesting observation around our planet that there is a certain arrangement of blood groups. from west to east Europe declining number of people with blood group A, while growing numbers of people who have group B. In England 43% of people have group A, while in Russia 30%, while in Iran only 15%