According to Stanford Blood Centre, there are a total of 8 types of blood groups, which are categorised based on the presence ...

The results will tell you whether you have A, B, AB, or O blood and whether your Rh factor is positive or negative. Apart from your healthcare provider ordering a standard ABO blood test, you could ...

Luckily, I knew off the top of my head that I'm type O-positive ... There are also Rhesus (Rh) antigens, which determine if blood is "positive" or "negative." If you have Rh proteins on the ...

O negative is a rare blood type that can be given to anyone. It is called the “universal donor” and is very useful in ...

Thirdly, the Rh-negative recipient can be singled out for support with frozen-processed Group O, Rh-negative cells because, as a rule, supplies of ACD, Rh-negative blood are limited in the field.

It's a bit simplistic, but you can think of the Rh factor as a protein that is either present (positive) or absent (negative) on red blood cells. Exact percentages vary with race, but most people ...