Add Yahoo as a preferred source to see more of our stories on Google. Close-Up Of Donated Blood In Bag Knowing your blood type is critical during emergency health situations. Knowing your blood type ...
A person's blood type is determined by "the presence or absence of certain antigens – substances that can trigger an immune response if they are foreign to the body," according to American Red Cross.
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Understanding different blood types: A, B, AB, and O
There are different blood types: A, B, AB, and O, with each also being Rh-positive or Rh-negative. Knowing your blood type is important for safe blood transfusions and organ transplants. Type ...
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