Microbiology Exam Review Quiz Dec 2012
131 Questions
| Total Attempts: 53
.
Questions and Answers
- 1.What media is used to culture T.pallidum?
- 2.What is the purpose of the axial filaments of spirochetes such as Treponema pallidum and Borrelia spp.?
- 3.Which type of microscopy is most commonly used in the direct microscopic examination of T.pallidum?
- A.
Brightfield Microscopy
- B.
Darkfield Microscopy
- C.
Phase Contrast Microscopy
- D.
Fluorescence Microscopy
- E.
Electron Microscopy
- 4.The spirochetes are gram negative microorganisms.
- A.
True
- B.
False
- 5.T.pallidum has a _________________ motility that can be used for laboratory diagnosis.
- 6.Identification of the causative agent of syphilis is most commonly achieved using:
- A.
Culture
- B.
Biochemical testing
- C.
Antigen detection
- D.
Serology
- E.
PCR
- 7.The screening test used in the diagnosis of secondary and tertiary syphilis attempts to detect antibodies to ________________ whereas the specific test attempts to detect antibodies to ___________________.
- 8.Borrelia burgdorferi is the etiologic agent of ____________________.
- 9.The transmission of B.Burgdorferi is mediated by:
- A.
Aerosols
- B.
Direct contact
- C.
Vectors
- D.
Fomites
- E.
Vehicles
- 10.What organs are most commonly affected during the progression of Lyme Disease?
- A.
Skin
- B.
Blood vessles
- C.
Brain
- D.
Heart
- E.
Joints
- F.
Pancreas
- G.
Stomach
- H.
Appendix
- 11.The laboratory diagnosis of Lyme Disease is most commonly made using _____________.
- 12.Name two species of Borrelia that are most commonly implicated in cases of relapsing fever. What are the vectors involved in the transmission of these species of Borrelia?
- 13.What organs are most commonly affected during severe cases of Leptospirosis?
- A.
Kidneys
- B.
Heart
- C.
Liver
- D.
Central Nervous System
- E.
Lungs
- F.
Skin
- 14.The transmission of leptospires is most commonly via _________________________
- 15.Identification of the causative agent of leptospirosis is most commonly achieved using:
- A.
PCR
- B.
Biochemical testing
- C.
Culture
- D.
Serology
- E.
Antigen detection
- 16.Ticks transmit the spirochetes that cause Lyme disease within the first hour after attaching to their human host.
- A.
True
- B.
False
- 17.Spirochetes are differentiated by the number of insertion disks present.
- A.
True
- B.
False
- 18.Several treponeme species are considered to be normal oral and genital flora.
- A.
True
- B.
False
- 19.A positive ELISA test for Lyme disease should be confirmed by Western blot.
- A.
True
- B.
False
- 20.Diagnosis of leptospirosis is usually made by detection of IgM antibodies in acute and convalescent sera.
- A.
True
- B.
False
- 21.Treponemes can infect the umbilical cord and cross the placenta.
- A.
True
- B.
False
- 22.Reaginic antibodies are produced against antigens of T.pallidum.
- A.
True
- B.
False
- 23.Extreme water sports are a risk factor for leptospirosis.
- A.
True
- B.
False
- 24.Human relapsing fever is caused by the bite of the human body louse.
- A.
True
- B.
False
- 25.Susceptibility testing of Borrelia spp. to doxycycline should always be done because of the incidence of treatment failure.
- A.
True
- B.
False
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