blood group

blood group (blud grldbomacp)

1. an erythrocytic allotype (or phenotype) defined by one or more cellular antigenic groupings controlled by allelic genes. Numerous blood group systems are now known, the most widely used in matching blood for transfusion being the ABO and Rh groups.

2. any of various other characteristics or traits of cellular or fluid components of blood, considered as the expression (phenotype or allotype) of the actions and interactions of dominant genes, and useful in medicolegal and other studies of human inheritance.

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blood group

n.

1. Any of several immunologically distinct, genetically determined classes of human blood that are based on the presence or absence of certain antigens, are clinically identified by characteristic agglutination reactions, and are important with respect to blood transfusions and organ transplantation.

2. Blood type.

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blood group,

the classification of blood based on the presence or absence of genetically determined antigens on the surface of the red cell. Several different grouping systems have been described. These include ABO, Duffy, high-frequency antigens, I, Kell, Kidd, Lewis, low-frequency antigens, Lutheran, MNS, P, Rh, and Xg. Their relative importance depends on their clinical significance in transfusion therapy, organ transplantation, maternal-fetal compatibility, and genetic studies. See also ABO blood group.

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blood group,

n classification based on the presence of certain antigens on the surface of red blood cells. Types include A, B, AB, O, and Rh+ or Rh−. Used in organ tranplantation, trans-fusion therapy, genetic studies, and maternal-fetal compatibility testing.

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blood group

the phenotype of erythrocytes defined by one or more cellular antigenic structural groupings under the control of allelic genes. The identification of specific blood groups is little used in veterinary medicine, except for the identification of parents, usually in horses and farm animals, and for purposes of selecting blood donors. For blood transfusions the usual practice is to carry out direct matching tests to avoid problems created by incompatibility. For blood group systems, see Table 7.

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blood group

Transfusion medicine A popular term for any of the more than 20 antigen systems including ABO, Duffy, Kelly, Kidd, Lewis, Rh and other antigen systems, which are found primarily, on RBCs See ABO Cartwright, Chido/Rodgers, Cromer-related, Do/Gy/Hy/Jo, Duffy, Gerbich.H, Indian, JMH, Kell, Kidd, Knops, Kx, Lewis, Lutheran, LW, MN, OKa, P₁, Rh, Type & cross, Type & screen, Xga.

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Patient discussion about blood group.

Q. HIV - does it infect specific Blood Types? A friend of mine joined the army and they took him to an experiment and infected him with HIV. But he was not infected- he said because he has a certain blood type. Is this true?

A. I find it hard to believe the army infected any one with HIV. But that's a different story. Blood types differ from one another by their red blood cells proteins. HIV infects white blood cells .there is no connection between blood type and a cure for HIV. If there was- you’ve heard about it by now…

Q. Is it true that people with different blood type should have different diets?

A. There were plenty of suggestions on changing your diet according to your blood type, however none of them were proved in a proper double-blinded randomized control trial in scientific medicine and therefore it is still yet another theory.

Q. Do all cancer types involve tumors? If so than having leukemia means you have tumors in your blood?

A. cancer is human cells that are mutated and lost control on their proliferating state. they just multiply and multiply without any regulation. blood cells are not attached so they don't form a "tumor" (in Latin means- a bump)if becoming cancerous.