Exam 2 Weekly Review Questions Flashcards
A type II hypersensitivity reaction is a:
Cytotoxic reaction
With which cell type are anaphylactic reactions associated?
Mast
Type I hypersensitivity reactions can be associated with:
- Food Allergies
- Hay Fever
- Asthma
An example of a delayed nonhemolytic (type II hypersensitivity) reaction is:
Graft-vs-host disease
Under normal conditions, immune complexes protect the host because they:
- Facilitate the clearance of various antigens
- Facilitate the clearance of invading organisms
Type IV hypersensitivity reactions are responsible for all of the following except:
Incorrect answer:
- Contact sensistivity
- Serum sickness
- Elimination of tumor cells
- Rejection of foreign tissue grafts
Serum sickness
Serologic procedures for the diagnosis of recent infection should include:
Acute and convalescent specimens
Toxoplasmosis is a ___________ infection.
Parasitic
Before the licensing of rubella vaccine in the U.S. in 1969, epidemics occurred at _____ year intervals.
6 to 9
IgG antibodies to rubella virus increase rapidly for _______ days after the acquisition of the infection.
7 to 21
A characteristic of CMV immediate-early antigen is:
They appear within 1 hour of cellular infection
A distinguishing characteristic of the herpes virus is that:
- They are cell-associated viruses
- Human beings are the only known reservoir of infection
Up to _______ of infants develop antibody to HHV-6 by 10-11 months of age.
75%
Immunocompetent patients infected with T. pallidum produce:
- Specific antibodies against T. pallidum
- Nonspecific antibodies against the protein antigen group common to pathogenic spirochetes
- Reagin antibodies
Syphilis was initially treated with:
Heavy metals (e.g., arsenic)
