In accidents injured personsmay die...

How can we save their lives?

Blood Transfusion ( 輸血 )

Any criteria for Blood Transfusion? ( 准則 )

First of all, you should know something about blood group.

How many types of blood groups are there in human population?

25% 25 % 10% 40%

How do we classify them into these four groups?

A, B, AB and OFour

Blood Transfusion

Donor Recipient

The donor donate blood to the recipient.

Group A Group B

We must consider whether the blood group of donor and recipient are compatible ( 相容 ) or incompatible ( 不相容 ).

Antibodies

What will happen if blood groupsof donor and recipient are incompatible?

1. red blood cells clump together / agglutinate to form clots

2. Blockage of blood vessels

3. Death

A blood vessel

Antibodies in different types of blood

Anti-B antibody

(YB)

Anti-A antibody

(YA)

can’t have any antibody

Both

(YA & YB)

Recipient

Donor(antigen)

A B AB O

YB YA Nil YA & YB

Universal Donor

Universal Recipient

The functions of blood in transportThe functions of blood in transportlungs small intestine

liver

kidneys

O2

(respiratory gases)

CO2

nutrients

nutrients

urea(excretory products)

All body cells, tissues and organs

white blood cells in blood

muscle

endocrine glands

liver

hormones antibodiesheat

Distributed all over body in blood

Target cells and organs

transported by plasma

The functions of blood in transportThe functions of blood in transport