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)
The RPR test is:
Nontreponemal method
In the latent stage of syphilis, a clinical finding is:
Diagnosis only by serologic methods
The FTA-ABS test is a
Treponemal method
Treponema pertenue is the causative organism associated with the disease:
Yaws
All of the following characteristics are descriptive of M protein except:
- No known biological role
- Found in association with the hyaluronic capsule
- Inhibits phagocytosis
- Antibody against M protein provides type-specific immunity
No known biological role
The classic tests to demonstrate the presence of streptococcal infection are:
ASO and anti-DNase B
EBV can cause all of the following except:
- Infectious mononucleosis
- Burkitt lymphoma
- Nasopharyngeal carcinoma
- Neoplasms of the bone marrow
Neoplasms of the bone marrow
The incubation period of infectious mononucleosis is:
10 to 50 days
Lyme disease is a _________ type of infection.
Bacterial
Unlike some procedure, the PCR assay can be used to detect Lyme disease causing organisms in:
Synovial fluid
One of the most common physical findings in adults with ehrlichiosis is:
Fever
Babesiosis is characterized by:
- Fever
- Fatigue
- Hemolytic anemia
West Nile virus causes:
Encephalitis
This type of vaccine is the closest to exposure to natural infection:
Live, attenuated
This virus often superinfects with hepatitis B
HDV
Hepatitis refers to inflammation of the:
Liver
Anthrax vaccine:
Offers protection against bioterrorism
The Center for Biologics Evaluation and Research (CBER) regulates:
Vaccine products
