What does plus and minus mean in blood type?

The A, B, O, and AB blood types are all “plus” types. If you are A, B, or AB, you can receive an infusion of blood from anyone of these blood types with no ill effects. However, you may need to be careful if you want to receive blood from someone with the O blood type. While O blood is compatible with other blood types, the white blood cells in O blood may be able to trigger an immune reaction if an infusion of O

What does plus minus mean in blood type?

The ABO blood group system classifies people according to the presence or absence of substances found on the surface of red blood cells. These substances are called antigens There are three types: A, B and O. If someone has antigen A, they have A antigen on their red blood cells. If someone has antigen B, they have B antigen on their red blood cells. And if someone has antigen O, they have both A and B antigens.

What does plus and minus symbol mean in blood type?

The plus and minus symbol is used in blood type to describe the strength of your A antigen. Someone who has a strong A antigen is said to have A+, whereas someone with a weak A antigen is said to have A-. The strength of your B antigen is designated with a plus or a minus as well.

What does plus and minus mean in blood type AB?

The ABO blood type is the most common blood type in the world, making up about 40% of the global population. If you are an AB blood type, you have two alleles for the A and B antigen. Those who have the A and B alleles are called “A” or “B” and those who have one or no allele for either are called “O.”

What does plus and minus mean in blood type O?

The O blood type is the most common blood type in the world, making up about 30% of the population. People with O blood are born with an antibody called the “universal donor” antigen. This antibody can be transfused into anyone with O blood to help fight disease, in a similar way to how blood transfusions work in A and B blood types.