blood types

Blood Types

Each blood type has a specific antigen.

A = “A” antigens

B = “B” antigens

AB = “A” and “B” antigens

O = neither

Donating blood

You can only give blood to people with similar antigens as you.

A can give A and AB but not O or B

B can give B and AB but not O or A

AB can receive from all three but only give AB

O can give to all 3 but only receive O

If the body recognizes a foreign antigen, it will attack it!

Rh factors

Small proteins on red blood cell that

determine if your blood is + or –

If you have Rh factors, you are positive, if

not you are negative

Positive can only give to positive but

receive from BOTH

Negative can only receive from negative

but give to both!

Yu try:

Blood Type

Can donate to

Can receive From

A+

AB-

O+

B-

A+ , AB+

AB+, AB-

All Positive!

B+, B-, AB+, AB-

B-, O-