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302 > exam 2 study guide #7 > Flashcards

exam 2 study guide #7 Flashcards

1
Q

antigen

A

molecule capable of inducing an immune response

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2
Q

antibody

A

bivalent protein formed by B lymphocytes in response to foreign substance

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3
Q

packed cells

A

cells only, no plasma

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4
Q

Correspond antigens present
Type A
Type B
Type AB
Type O

A

-A antigens
-B antigens
-both A/B antigens
-none

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5
Q

Antibodies
Type A
Type B
Type AB
Type O

A

-b antibodies
-a antibodies
-neither a/b
-both a/b antiodies

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6
Q

Antibodies a and b are called naturally occurring antibodies because:

A

-result of natural exposure to substances in our environment during first few months of life
-form naturally in anyone who doesn’t have corresponding antigen

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7
Q

A serum

A

someone with type A blood
-b antibodies

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8
Q

An Rh negative man is tested and shown to have Rh antibodies. How do you explain this?

A

has received Rh positive blood transfusion at some time in his life

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9
Q

A Rh negative woman delivers a baby with Rh positive blood. This baby will suffer from erythroblastosis fetalis only if:

A

the mother previously delivered a baby with Rh positive blood and did not receive RhoGam

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10
Q

Which of the following individuals will have Rh antibodies?

A

-an Rh negative individual who has received a transfusion of Rh positive blood
-an Rh negative woman who has delivered an Rh positive child and not received a Rhogam injection

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11
Q

Explain the etiology of erythroblastosis fetalis by placing the events listed in the right column in the proper order.

A

1- Rh negative mom pregnant with Rh positive child
2- Rh positive fetal cells leak into mothers circulation during delivery
3- triggers immune response in mom who now produces Rh antibody
4- during 2nd pregnancy with another Rh positive baby, Rh antibody cross placenta into fetal circulation
5- maternal Rh antibody bid to fetal red blood cells
6- fetus suffers from destruction of red blood cells and is anemic and jaundiced at birth

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12
Q

Treatment of Rh positive mom with Rh negative baby using Rhogam:

A

-must be done within 72 hours of delivery
-injects the mother with Rh antibodies that destroy any fetal Rh positive cells before they can cause an immune response
-prevents production of Rh antibodies in the mother
-must be done following the delivery of all Rh positive babies

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13
Q

Genotype- blood type
Type A (homozygous)

A

IA IA

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14
Q

Genotype- blood type
Type A (heterozygous)

A

IA i

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15
Q

Genotype- blood type
Type B (homozygous)

A

IB IB

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16
Q

Genotype- blood type
Type B (heterozygous)

A

IB i

17
Q

Genotype- blood type
Type AB

A

IA IB

18
Q

Genotype- blood type
Type O

A

i i

19
Q

Genotype- blood type
Rh positive (homozygous)

A

Rh Rh

20
Q

Genotype- blood type
Rh positive (heterozygous)

A

Rh rh

21
Q

Genotype- blood type
Rh negative

A

rh rh

22
Q

A child with an AB positive blood type has a mother whose blood type is A negative. The baby’s father blood type is most likely:

A

-B positive
-AB positive

23
Q

Blood is drawn into a test tube from a person with Type A blood. After clotting, the cells are discarded and the remaining liquid, which is __________ contains ___________.

A

serum; b antibodies

24
Q

List the three rules of blood typing.

A

-antigens are on the cell; antibodies are in the serum or plasma
-agglutination only occurs in the presence of both the antigen and its corresponding antibody
-the antigens on the red blood cell determine the blood type

25
Q

Which of the following combinations of red blood cells and serum would give an agglutination reaction? (The blood samples are from individuals who have never received a blood transfusion or been pregnant.)

A

type A negative cells with type B positive serum

26
Q

A person has Type AB blood.. If they receive a transfusion of whole blood, which of the following donor types could potentially cause an agglutination reaction?

A

-Type A
-Type B
-Type 0

27
Q

A person who has Type O blood is referred to as a universal donor. This is not totally accurate because

A

-a person with Type O blood has a and b antibodies in their plasma
-cells must be separated from plasma to isolate the antigens from the antibodies, and only cells may be donated

28
Q
A

302 (3 decks)

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