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A blood type (also known as a blood group) is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells (RBCs). These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system.
ABO blood group antigens present on red blood cells and IgM antibodies present in the serum. The ABO blood group system is used to denote the presence of one, both, or neither of the A and B antigens on erythrocytes (red blood cells). [ 1] For human blood transfusions, it is the most important of the 44 different blood type (or group ...
The term human blood group systems is defined by the International Society of Blood Transfusion (ISBT) as systems in the human species where cell-surface antigens—in particular, those on blood cells—are "controlled at a single gene locus or by two or more very closely linked homologous genes with little or no observable recombination between them", [1] and include the common ABO and Rh ...
A blood donation can mean the difference between life and death if you need a transfusion, and every year 4.5 million people do, according to the American Red Cross. One type of blood donation can ...
Do a home test. Many DIY kits are available online and in drugstores. Ranging in price from $9 to $30, these kits include cards that contain chemicals known as reagents. You prick your finger with ...
As blood banks across the nation are running low on blood, some are placing an emphasis on one blood type over others. "Type O is known as a universal donor," said MacDonell Spiess.
Type O negative is often cited as the "universal donor" [39] but this only refers to red cell and whole blood transfusions. For plasma and platelet transfusions the system is reversed: AB positive is the universal platelet donor type while both AB positive and AB negative are universal plasma donor types. [40] [41]
It can be transfused to any patient with a positive blood type ― over 80% of the population, so it's highly used in trauma care. Type O negative (O-) is known as the "universal blood type."