![]() ![]() ![]() Has both A and B antigens on red cells (but neither A nor B antibody in the plasma) Has only B antigen on red cells (and A antibody in the plasma) Has only A antigen on red cells (and B antibody in the plasma) There are 4 major blood groups determined by the presence or absence of two antigens (A and B) on the surface of red blood cells: Common Blood Types Blood Group Since some antigens can trigger a patient's immune system to attack the transfused blood, safe blood transfusions depend on careful blood typing and cross-matching. There are eight different common blood types, which are determined by the presence or absence of certain antigens, which are substances that can trigger an immune response if they are foreign to the human body. Blood Type O - If the red blood cell has neither "A" or "B" molecule.Blood Type AB - If the red blood cell has a mixture of both "A" and "B" molecules.Blood Type B - If the red blood cell has only "B" molecules on it.Blood Type A - If the red blood cell has only "A" molecules on it.The frequencies of the ABO and Rh blood types vary from population to population. A series of related blood types constitutes a blood group system, such as the Rh or ABO system. Blood Types (Groups)Ī blood type (also called a blood group) is defined as the classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells (RBCs). With regard to transfusions of packed red blood cells, individuals with type O Rh D negative blood are often called universal donors, and those with type AB Rh D positive blood are called universal recipients.įind out other interesting blood facts in our list of fascinating and amazing human body facts.A popular belief in Japan is that a person's ABO blood type is predictive of their personality, character, and compatibility with others. ![]() A total of 35 human blood group systems are now recognized by the International Society of Blood Transfusion (ISBT).Many pregnant women carry a fetus with a blood type which is different from their own, which is not a problem.Almost half (48%) of the UK population has blood group O, making this the most common blood group.Your body carries around four to six liters (7 to 10.5 pints) of blood.Receiving blood from the wrong ABO group can be life threatening.About 5 million Americans need blood transfusions every year.Some Quick Facts Regarding Blood Types/Groups He labeled one molecule "A" and the other molecule "B". Landsteiner observed two distinct chemical molecules present on the surface of the red blood cells. In the early 20th century, an Austrian scientist named Karl Landsteiner classified blood according to those differences. When a person's blood is analyzed under a microscope distinct blood differences are visible. There are 8 common blood types, as determined by presence or absence of certain antigens - substances that can trigger an immune response if they are foreign to the human body. A blood type (blood group) is defined as the classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells (RBCs). Includes charts showing donor compatibility and child blood group according to parents blood type. Synopsis: Facts and information regarding blood types. On This Page: Summary - Main Article - About/Author Peer-Reviewed: N/A - Publication Type: Charts / Graphs / Tables ![]()
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