hypersensitivity exam 4

Question 1

what is hypersensitivity

Answer 1

Hypersensitivity is a NORMAL immune response that is:
-inappropriately triggered
OR
-excessive
OR
-produces undesirable effects on the body

Question 2

how are types I, II, III mediated

Answer 2

mediated by ANTIBODIES produced by B cells

Question 3

how is type IV mediated

Answer 3

mediated by T cells

-delayed response

Question 4

What is type I

Answer 4

IgE mediated reaction

- in response to someone reacting from allergy

Question 5

what is type II

Answer 5

cytotoxic reaction

-giving someone the wrong type of blood

Question 6

what antibodies are involved in type II

Answer 6

IgG and IgM

Question 7

What is type III

Answer 7

immune complex reaction

-antigen antibody complex; causing inflammation

Question 8

what is difference between type II and type III

Answer 8

type II - direct cell death

type III - don’t actually destroy; inflammation destroys

Question 9

what is type IV

Answer 9

delayed hypersensitivity

-poison ivy, positive TB skin test, jewelry

Question 10

what cells does type IV involve

Answer 10

T-cells not antibodies

Question 11

how does epinephrine work in the body

Answer 11

inhibits release of mediators from mast cells