1. Human Blood Types
Exist because there are three proteins that can be found on human red blood cells:
A protein
B protein
Rh Factor
[if it’s present, the blood is called +]
[if it’s not present, the blood is called – ]

2. 8 Blood Types A - A + B - B + AB - AB + O - O +
“A – ” Blood
“A +” Blood Rh A Rh A A A A A A Rh A Rh
8 Blood Types
“B – ” Blood
“B +” Blood
A - B Rh B Rh B Rh B B B B B Rh
A +
B -
“AB – ” Blood
“AB +” Blood
B + Rh A B A B Rh A Rh A
AB - A B B B A Rh
AB +
“O – ” Blood
O -
“O +” Blood Rh Rh
O + Rh Rh Rh

3. FREQUENCIES OF THE HUMAN BLOOD TYPES
FREQUENCY IN THE POPULATION
White
African American
Hispanic
Asian
O +
37%
47%
53%
39%
O - 8% 4% 1%
A +
33%
24%
29%
27%
A - 7% 2%
0.5%
B + 9%
18%
25%
B -
0.4%
AB + 3%
AB -
0.3%
0.2%
0.1%

4. When blood from a donor is given to someone who needs it
Transfusion
When blood from a donor is given to someone who needs it
TRANSFUSION RULE
You must NEVER give the patient (the recipient) a blood protein that is foreign to his/her body!

5. LESSON on BLOOD TRANSFUSIONS
Exist because there are three proteins that can be found on human red blood cells:

6. Transfusion
TRANSFUSION RULE

7. 8 Blood Types “A – ” Blood “A +” Blood “B – ” Blood “B +” Blood
“AB – ” Blood
“AB +” Blood
“O – ” Blood
“O +” Blood

8. FREQUENCY IN THE POPULATION
FREQUENCIES OF THE HUMAN BLOOD TYPES
FREQUENCY IN THE POPULATION
BLOOD TYPE
White
African American
Hispanic
Asian
37%
47%
53%
39% 8% 4% 1%
33%
24%
29%
27% 7% 2%
0.5% 9%
18%
25%
0.4% 3%
0.3%
0.2%
0.1%