Deck 44: Blood Typing

Question 1

Why is type O blood called the universal donor?

A) Because everyone with type O blood is Rh-, and therefore, this blood type cannot initiate any transfusion reactions
B) Because type O blood plasma does not contain anti-A or anti-B antibodies, so it can be transfused into recipients of any blood type
C) Because everyone with type O blood is Rh+, like most of the population, so this blood type is compatible with all others
D) Because type O red blood cells contain neither antigen A nor antigen B, so they can be transfused into most recipients of any blood type, without being attacked by antibodies
E) It is not well understood why type O blood can be transfused into people with all blood types.

Answer 1

D

Question 2

Which of the following is not true of the Rh factor?

A) It is an antigen found on some people's red blood cell membranes.
B) A high percentage of Americans have the Rh factor.
C) The most reactive of the Rh antigen group is antigen B.
D) It was named for the Rhesus monkey, in which it was first discovered.
E) All of these are true of the Rh factor.

Answer 2

C

Question 3

If a person with type O blood needed a transfusion, which blood type(s) could be safely used as donor blood?

A) B only
B) O only
C) A or B
D) AB only
E) A, B, AB, or O

Answer 3

B

Question 4

A person with type AB blood contains ________ antigens on his/her red blood cells, and ________ antibodies in his/her blood plasma.

A) B; anti-A
B) neither A nor B; anti-A and anti-B
C) A and B; Anti-A and Anti-B
D) A; anti-B
E) A and B; neither anti-A nor anti-B

Question 5

Anti-A and anti-B antibodies are also called agglutinogens.

Question 6

Type B blood contains antigen B and anti-B antibodies.

Question 7

What is the least common blood type in the United States?

A) Type A
B) Type O
C) Type B
D) Type AB
E) All four blood types are found in almost equal percentages in the United States.

Question 8

What would happen if a transfusion recipient with type A- blood was given type A+ donor blood? (Assume the recipient had never been exposed to the Rh factor.)

A) The recipient would begin to produce anti-Rh antibodies in a few days, which would agglutinate the donor's red blood cells.
B) There would be an immediate transfusion reaction, and the recipient would become very ill or even die.
C) Due to the influx of Rh antigens, the recipient's blood type would change from A- to A+.
D) The recipient's red blood cells would be agglutinated by the donor's anti-A antibodies.
E) There would be no effect on the recipient; this is a compatible transfusion.

Question 9

If an Rh- woman was pregnant with her first Rh+ baby, and she had never been exposed to the Rh antigen, her baby would never be in danger of developing hemolytic disease of the fetus or newborn.

Question 10

Blood typing involves identifying the antibodies in a person's blood plasma.

Question 11

Which of the following would always be (an) incompatible donor(s) for a transfusion recipient with type A blood?

A) Types B, AB, and O
B) Type O only
C) Types B and AB
D) Type B only
E) Type AB only

Question 12

There are many different antigens found on red blood cell membranes, but only antigens A and B, and the Rh antigens are likely to cause agglutination reactions when transplanted into a person that lacks them.

Question 13

Anti-D serum can be mixed with a person's blood to check for the presence of

A) anti-A antibodies.
B) Rh antigens.
C) anti-B antibodies.
D) B antigens.
E) anti-Rh antibodies.

Question 14

A harmful reaction may occur in some cases, even when using the universal donor blood type for a transfusion.

Question 15

If you mixed a person's red blood cells with anti-B antibodies, and the red blood cells agglutinated, what could you conclude?

A) That the person's red blood cell membranes contain antigen B
B) That the person has type B blood
C) That the person has type AB blood
D) That the person's red blood cell membranes contain antigen A
E) That the person's blood is Rh+