Book practice Questions: Hypersensitivity

Question 1

Type I hypersensitivity is associated with?

Answer 1

Anaphylactic reactions

Question 2

Type II hypersensitivity is associated with?

Answer 2

Cytotoxic reactions

Question 3

Type III is associated with?

Answer 3

Immune complex reactions

Question 4

Type IV is associate with?

Answer 4

Cell-Mediated reactions

Question 5

With which cell type are anaphylactic reactions associated?
T lymphs
B lymphs
Monocyte
Mast

Answer 5

Mast Cells (because they are like basophils and histamine causes allergies)

Question 6

Type III reactions are exemplifed by all the following except:
Arthus reaction
serum sickness
glomernulonenephritis
shingles

Answer 6

Shingles

Question 7

Type IV reactions are responsible for all the following except:
Contact sensitivity
delayed hypersensitivity
elimination of tumor cells bearing neoAg
hemolysis of blood

Answer 7

Hemolysis of blood

Question 8

Type I hypersensitivity reactions can be associated with:
food allergies
hay fever
asthma
All of the Above

Answer 8

All of the above can cause an anaphylactic reaction

Question 9

The most common agents that cause anaphylactic reactions are:
Drugs and food
Drugs and insect stings
Poison ivy and insect stings
food and insect stings

Answer 9

Drugs and insect stings

Question 10

Under normal conditions, immune complexes protect the host because they:
Facilitate the clearance of Ag
facilitate the clearance of invading microorgs
interact w complement
Both A and B

Answer 10

Both A and B

Question 11

Immune complexes can:
suppress or sugment the immune response via T and B cells
inhibit tumor destruction
be deposited in blood vessel walls
all of the above

Answer 11

all of the above

Question 12

The general anatomic sites of Ag-Ab interactions are:
Tissues w large filtration area
interstitial fluids
cell surface membranes or fixed structures
all of the above

Answer 12

all of the above

Question 13

Type IV hypersensitivity reactions are responsible for all the following except:
contact sensitivty
elimination of tumor cells
rejection of foreign tissue grafts
serum sickness

Answer 13

Serum Sickness

Question 14

What does histamine do?

Answer 14

increases vasc permability and promotes contraction of smooth muscles

Question 15

what do leukotrienes do?

Answer 15

enhances effect of histamine on target organ

Question 16

what does serotonin do?

Answer 16

contracts smooth muscle

Question 17

PLT activating factor does what?

Answer 17

enhances release of histamine and serotonin

Question 18

eosinophil chemotactic factors of anaplylactic

Answer 18

attracts cells to area and release secondary mediators that may limit primary mediators

Question 19

Prostaglandins do what?

Answer 19

affects smooth muscle tone and vasc permability