The single most important laboratory test for determining the virulence of staphylococci is___________?

Related Mcqs:

1. Staphylococci typically occur in_________________?

   A. Pairs
   B. Chains
   C. Tetrads
   D. Irregular clusters

2. Toxic shock syndrome is due to the following virulence factor_____________?

   A. M protein
   B. Pyrogenic exotoxin
   C. Streptolysin 0
   D. Carbohydrate cell wall

3. The virulence factors of Neisseria gonorrhea include all of the following except____________?

   A. Outer membrane proteins
   B. IgA Protease
   C. M-Proteins
   D. Pili

4. Virulence of Gonococcus is due to___________________?

   A. Pili
   B. Cell Membrane
   C. Its intracellular location
   D. Cytolytic enzymes

5. The best laboratory test to use in the diagnosis of lupus vulgaris in the oral cavity is______________?

   A. Bacterial smear
   B. Blood studies
   C. Biopsy
   D. Blood chemistry

6. The most important property in determining the induction of a general anaesthetic agent is_____________?

   A. Alveolar exchage
   B. Pulmonary ventilation
   C. Solubility of anaesthetic in blood
   D. solubility of anaesthetic in tissue

7. The specific test for Treponema pallidum is___________?

   A. VDRL
   B. Kahn’s test
   C. TPHA
   D. Widal test

8. The urine sample of a patient has been sent to the laboratory to look for Leptospira. The specimen is to be screened by use of the__________________?

   A. Scanning microscope
   B. Inverted microscope
   C. Dark ground microscope
   D. Electron microscope

9. A veterinary doctor had pyrexia of unknown origin His blood culture in special laboratory media was positive for gram negative short bacilli which was oxidase positive. Which one of the following is the likely organism grown in culture ?

   A. Pasturella spp
   B. Francisella spp
   C. Bartonella spp
   D. Brucella spp

10. Wasserman test test is diagnostic of__________________?

    A. Syphilis
    B. Gonorrhea
    C. TB
    D. Tyhoid