Test 5 Microbiology

62 Questions | Total Attempts: 297

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Test 5 Microbiology

Microbiology is the simple study of microorganisms and is kind of a hard study. However, nothing is simple in this world. Take this quiz and find out for yourself. All the very best in it.


Questions and Answers
  • 1. 
    Which of the following is involved in the in vitro diagnostic testing of serum?
    • A. 

      Mycology

    • B. 

      Hematology

    • C. 

      Serology

    • D. 

      Histology

    • E. 

      Virology

  • 2. 
    The property of a test to detect only a certain antibody or antigen?
    • A. 

      Cross-reactions

    • B. 

      Agglutination

    • C. 

      Precipitation

    • D. 

      Specificity

    • E. 

      Sensitivity

  • 3. 
    Whole antigens are detected in this type of test:
    • A. 

      Cross-reactions

    • B. 

      Agglutination

    • C. 

      Coagulase

    • D. 

      Specificity

    • E. 

      Sensitivity

  • 4. 
    This test uses radioactive isotopes to label antibodies or antigens in order to detect minute amounts of corresponding antigen or antibody?
    • A. 

      Ouchterlony double diffusion

    • B. 

      Western blot

    • C. 

      Immunelectrophoresis

    • D. 

      Radioimmunoassay RIA

    • E. 

      The Quellung test

  • 5. 
    This test is the confirming test for people who initially tested antibody-positive in the screening ELISA test:
    • A. 

      Ouchterlony double diffusion

    • B. 

      Western Blot

    • C. 

      Immunelectrophoresis

    • D. 

      Radioimmunoassay(RIA)

    • E. 

      The Quellung test

  • 6. 
    Serotyping of the pneumococcus based on capsular polysaccharide is performed in
    • A. 

      Ouchterlony Double diffusion

    • B. 

      Western Blot

    • C. 

      Radioimmunoassay (RIA)

    • D. 

      Immunelectrophoresis

    • E. 

      The Quellung Test

  • 7. 
    Which o fthe folowing is not a biochemical test used to identify a pathogen?
    • A. 

      Acid-fast reaction

    • B. 

      Hydrolysis of gelatin

    • C. 

      Coagulase production

    • D. 

      Oxygen requirements

    • E. 

      Carbohydrate fermentation

  • 8. 
    All of the following are methods to diagnose viral infections except
    • A. 

      Detection of viral nucleic acid using specific probes

    • B. 

      Western Blot

    • C. 

      Cells taken from patient are examined for evidence of viral infection

    • D. 

      Signs and symptoms

    • E. 

      The light microscope

  • 9. 
    Which of the following methods is categorized as a direct test in order to analyze a specimen?
    • A. 

      Catalase test

    • B. 

      Gram stain

    • C. 

      Phage typing

    • D. 

      Antimicrobic sensitivity

    • E. 

      Production of gas

  • 10. 
    All of the following are routine biochemical tests to aid in identifying a species except?
    • A. 

      Motility

    • B. 

      Carbohydrate fermentation

    • C. 

      Catalase test

    • D. 

      Oxidase test

    • E. 

      Coagulase test

  • 11. 
    Sputum is obtained by
    • A. 

      Swabbing the mouth t sample saliva

    • B. 

      A clean catch urine sample

    • C. 

      The patient coughing up mucus from th elower respiratory system

    • D. 

      A spinal tap above the chest

    • E. 

      A throat swab

  • 12. 
    All species of Staphylococcus
    • A. 

      Lack spores

    • B. 

      Are motile

    • C. 

      Have capsules

    • D. 

      Produce coagulase

    • E. 

      All fo the choices are correct

  • 13. 
    The toxin of Staphylococcus aureus strains that causes blisters and desquamation of skin in scalded skin syndrome is
    • A. 

      Enterotoxin

    • B. 

      Hemolysin

    • C. 

      Toxic shock syndrome toxin

    • D. 

      Exfoliative toxin

    • E. 

      Erythrogenic toxin

  • 14. 
    All the following pertain to Staphylococcus epidermidis infections except
    • A. 

      They often from an endogenous source

    • B. 

      They typically occur after insertion of shunts and prosthetic devices

    • C. 

      Catheterization can introduce the organism and lead to urinary tract infection

    • D. 

      The organism is coagulase negative

    • E. 

      The organism produces a large number of tissue damaging enzymes and toxins

  • 15. 
    Scarlet fever is caused by strains of
    • A. 

      Staphylococcus aureus

    • B. 

      Staphylococcus epidermidis

    • C. 

      Staphylococcus saprophyticus

    • D. 

      Streptococcus pyogens

    • E. 

      Streptococcus agalactiae

  • 16. 
    Staphylococci can be differentiated from steptococci by the
    • A. 

      Gram stain

    • B. 

      Coagulase test

    • C. 

      Catalase

    • D. 

      Fermentation of mannitol

    • E. 

      None of the choices are correct

  • 17. 
    Rebecca Lancefield differentiated streptococci on the basis of differences in their
    • A. 

      Cell wall carbohydrates in a serologica test

    • B. 

      Patterns of hemolysis on blood agar

    • C. 

      Ability to produce catalase

    • D. 

      Gram stain appearance

    • E. 

      All of the choices are correct

  • 18. 
    Streptococcus pyogenes causes all the following except
    • A. 

      Necrotizing fascilitis

    • B. 

      Erysipelas

    • C. 

      Impetigo

    • D. 

      Scarlet fever

    • E. 

      Scalded skin syndrome

  • 19. 
    Streptococcal pharyngitis involved all the following except
    • A. 

      A purulent exudate over the tonsils

    • B. 

      Can lead to scarlet fever if it is an erythrogenic toxin-producing strain

    • C. 

      Can lead to serious sequelae

    • D. 

      Is usually caused by the viridans streptococci

    • E. 

      Causes redness, difficulty in swallowing, and fever

  • 20. 
    All of the following pertain to enterococcus faecalis except
    • A. 

      Normal flora of the human large intestine

    • B. 

      Increaingly resistant to many antimicrobics

    • C. 

      Cause nosocomial wound infections, urinary tract infections, and septicemias

    • D. 

      Can cause endocarditis

    • E. 

      Belong to Lancefield Group B strptococci

  • 21. 
    Neisseria gonorrhoeae is
    • A. 

      The cause fo ohthalmia neonatorum

    • B. 

      The cause of gonorrhea

    • C. 

      Called the gonococcus

    • D. 

      Virulent de to fimbriae and a protease that inactivates IgA

    • E. 

      All of the choices are correct

  • 22. 
    All of the following pertain  to gonorrhea except
    • A. 

      A chancre-type lesion develops at the portal of entry

    • B. 

      It is a reportable infectious disease

    • C. 

      Pelvic inflammatory disease( PID) and infertility are complications

    • D. 

      Females can have asymptomatic infection

    • E. 

      Cymptoms include painfule urination and discharge

  • 23. 
    A patient has a suspicious skin infection and a culture is taken. Which media would be appropriate to select for staphylococci?
    • A. 

      Nutrient agar

    • B. 

      Blood agar

    • C. 

      Chocolate agar

    • D. 

      MacConkey agar

    • E. 

      Mannitol salt agar

  • 24. 
    A pregnant woman is told she has a positive CAMP test and shuld be treated with a course of antibiotics and gloulin. This test indicative of
    • A. 

      Group A streptococci

    • B. 

      Group B streptococci

    • C. 

      S. epidermidis

    • D. 

      S. saprophyticus

    • E. 

      S. Aureus

  • 25. 
    Legionella pneumophila
    • A. 

      Requires special lab growth media

    • B. 

      Often lives in close association with amoebas

    • C. 

      Cause fever, cough, and diarrhea

    • D. 

      Causes a severe pneumonia

    • E. 

      All choices are correct