Group A: The surface of the red blood cells contains A antigen, and the plasma has anti-B antibody that would attack any foreign B antigen containing red blood cells.
Group B: The surface of the red blood cells contains B antigen, and the plasma has anti-A antibody that would attack any foreign A antigen containing red blood cells.
Group AB: The red blood cells have both A and B antigens, but the plasma does not contain anti-A/anti-B antibodies. Individuals with type AB can receive any ABO blood type.
Group O: The plasma contains both types of anti-A/anti-B antibodies, but the surface of the red blood cells does not contain any A/B antigens. Having none of these A/B antigens means that they can be donated to a person with any ABO blood type.
Additional info: Some red blood cells have the Rh factor, which is also called RhD antigen. Rhesus grouping adds another dimension. If the red blood cells contain the RhD antigen, they are RhD positive. If they do not, they are RhD negative. Click here to go to the interactive Red Cross blood information page.
Information from MedicalNewsToday.com
Frequently Asked Questions:
Q. What is the most needed type of blood here in Belize?
A. 0+ /- (according to the National Blood Bank)
Q. How long does one unit of blood last for?
A. A unit of blood can only last for 28-35 days. Keep in mind that the organization that made this is not Belizean, so do not contact them.
An explanation of the other visual above.