Blood Type Lab

What are the 4 blood types?

What are the protein markers on the surface of these RBCs called?

ANTIGENS

What are some situations that require knowing a person’s blood type?

• Transfusions•Organ donation•Pregnancy•Criminal investigations

If the wrong blood types are mixed what happens?

Agglutination = clotting

Today you will test the “blood” of 4 people.

•Carefully follow directions to determine the blood type of each person.

Agglutination?

• Look for precipitated, solid specks

• If clumping occurs write a + in the well

• If not write a - in the well

1. Can Mr. Jones donate blood safely to Mr. Green?

B- to AB+YES – B is not foreign to AB

2. Can Mr. Green donate blood safely to Mr. Jones?

AB+ to B-No – A of AB would be foreign to B

3.Which person could donate safely to anyone?

Ms. BrownShe is O- so her RBCs have no antigens and would not cause any agglutination.

4.List situations where blood typing could be used.

PregnancyTransfusionsOrgan donationsPaternityCriminal investigations

5. What complications can occur in a patient that receives the wrong blood type?

Clotting can cause heart attack, stroke or tissue damage.