Blood Typing

Question 1

What are blood types based on?

Answer 1

Carbohydrate antigens on the surface of RBC

Question 2

What is hemagglutination?

Answer 2

Clumping of RBC

Question 3

How is blood typing tested?

Answer 3

using specific known anti-sera (antibodies)

Question 4

What antigens and antibodies does blood type A have?

Answer 4

Antigens: A

Antibodies: B

Question 5

What antigens and antibodies does blood type b have?

Answer 5

Antigens: B

Antibodies: A

Question 6

What antigens and antibodies does blood type AB have?

Answer 6

Antigens: AB

Antibodies: N/A

Question 7

What antigens and antibodies does blood type O have?

Answer 7

Antigens: N/A

Antibodies: AB

Question 8

What is the Rh factor?

Answer 8

based on the presence or absence of D antigen (complex 5 antigens)

Question 9

Rh+:

Answer 9

D antigen is present, no d antibodies ever

Question 10

Rh-:

Answer 10

D antigen is absent, naturally no D antibodies

Question 11

Erythroblastosis fetalis:

Answer 11

• Rh(-) mother is pregnant with and Rh(+) baby
• during delivery, baby/mother’s blood mixes
• mother produces d-antibodies, and is now desensitized
• mother is pregnant with second Rh(+) baby
• mother’s d-antibodies crosses placenta and attacks baby’s blood—> still birth

Question 12

What is the solution to Erthroblastosis fetalis?

Answer 12

RhoGAM