Book practice Questions: Hypersensitivity Flashcards
Type I hypersensitivity is associated with?
Anaphylactic reactions
Type II hypersensitivity is associated with?
Cytotoxic reactions
Type III is associated with?
Immune complex reactions
Type IV is associate with?
Cell-Mediated reactions
With which cell type are anaphylactic reactions associated?
T lymphs
B lymphs
Monocyte
Mast
Mast Cells (because they are like basophils and histamine causes allergies)
Type III reactions are exemplifed by all the following except:
Arthus reaction
serum sickness
glomernulonenephritis
shingles
Shingles
Type IV reactions are responsible for all the following except:
Contact sensitivity
delayed hypersensitivity
elimination of tumor cells bearing neoAg
hemolysis of blood
Hemolysis of blood
Type I hypersensitivity reactions can be associated with:
food allergies
hay fever
asthma
All of the Above
All of the above can cause an anaphylactic reaction
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
Drugs and insect stings
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
Both A and B
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
all of the above
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
all of the above
Type IV hypersensitivity reactions are responsible for all the following except:
contact sensitivty
elimination of tumor cells
rejection of foreign tissue grafts
serum sickness
Serum Sickness
What does histamine do?
increases vasc permability and promotes contraction of smooth muscles
what do leukotrienes do?
enhances effect of histamine on target organ