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Micro - Pathogenic Bacteria II

30 Questions
Bacteria Quizzes & Trivia

Quiz based on PPP for Pathogenic Bacteria II

Questions and Answers
  • 1. 
    Pneumococcus are best described as
    • A. 

      Lancet shaped gram positive cocci in pairs

    • B. 

      Alpha hemolytic strep

    • C. 

      Has polysaccharide capsule that inhibits phagocytosis

    • D. 

      All of the above

  • 2. 
    Pneumococcus' capsule is responsible for all of the following except
    • A. 

      Mucoid appearance on agar

    • B. 

      Survival in bloodstream

    • C. 

      Permanent/ constant antigenicity

    • D. 

      All of the above

  • 3. 
    Streptococcus pneumoniae causes bacterial pneumonia and meningitis
    • A. 

      True

    • B. 

      False

  • 4. 
    A patient presents with pneumonia cause by streptococcus pneumoniae which of the following conclusions are least likely to be true
    • A. 

      They were infected by person to person contact

    • B. 

      They were infected by contact with secretions on an inanimate object

    • C. 

      By taking a though history you can easily find the origin of the infection

    • D. 

      The patient was colonized in their nasopharynx prior to infection

  • 5. 
    A patient presents with a pneumonia infection which of the following may have contributed to the bacteria's ability to overcome the normal mechanisms of lung protection
    • A. 

      Cigarette smoking

    • B. 

      Recent viral infection

    • C. 

      Excess fluid in the lungs

    • D. 

      All of the above

  • 6. 
    Which stage of Pneumococcus infection features the filling of alveoli with serous fluid that contains few inflammatory cells but numerous organisms
    • A. 

      First stage

    • B. 

      2- early consolidation

    • C. 

      3- late consolidation

    • D. 

      4- resolution

  • 7. 
    Which stage of pneumococcal infection involves an acute inflammatory response that attracts neutrophils and RBC  and initiates the  alternative pathway of complement activation
    • A. 

      1st stage

    • B. 

      2nd stage- early consolidation

    • C. 

      3rd stage- late consolidation

    • D. 

      4th stage- resolution

  • 8. 
    During the resolution stage of pneumococcal infection, the C substance of bacteria reacts with serum component C-reactive protein and activates complement through the classical pathway
    • A. 

      True

    • B. 

      False

  • 9. 
    This stage of pneumococcal infections features more neutrophils than pathogens and leads to the hepatization of the lungs
    • A. 

      1st stage

    • B. 

      2nd stage- early consolidation

    • C. 

      3rds stage- late consolidation

    • D. 

      4th stage- resolution

  • 10. 
    During this stage of pneumococcal infection macrophages take over and clear the inflammatory debris and the lung tissue is restored to its normal condition
    • A. 

      1st stage

    • B. 

      2nd stage- early consolidation

    • C. 

      3rd stage- late consolidation

    • D. 

      4th stage- resolution

  • 11. 
    A complication of pneumococcal lung infection is the pouring of fluid into the pleural space this is called___________ if the fluid is infected however, it is called _______________
    • A. 

      Pleural effusion; empyema

    • B. 

      Empyema; pleural effusion

    • C. 

      Pericarditis; pulmonary embolism

    • D. 

      Pleural effusion; pleural effacement

  • 12. 
    Pneumococcus can be differentiated from other strep bacteria because of its sensitivity to Optochin and its solubility in bile salts. This should be used as a confirmation of a diagnosis based on clinical presentation because cultures can sometimes be negative.
    • A. 

      True

    • B. 

      False

  • 13. 
    If a sputum is cultured and the gram stains shows neutrophils with >10 gram positive diplococci / oil immersion field you should assume pneumococcal pneumonia
    • A. 

      True

    • B. 

      False

  • 14. 
    A 30 y/o male  with NKDA presents with pneumococcal CNS  infection; C&S tests reveal bacteria is susceptible to penicillin. Which of the following would you use to treat them
    • A. 

      Penicillin VK

    • B. 

      Amoxicillin / Augmentin

    • C. 

      (Ampicillin + Sulbactam) Unasyn

    • D. 

      Any of the above

    • E. 

      None of the above

  • 15. 
    Gram negative diplococci include
    • A. 

      N. Gonorrhea

    • B. 

      S. Pneumoniae

    • C. 

      N. Meningitidis

    • D. 

      A & C

    • E. 

      None of the above

  • 16. 
    Gonorrhea cases must be reported to the Public Health Service
    • A. 

      True

    • B. 

      False

  • 17. 
    Which of the following is true about the ascent of N. gonorrhea
    • A. 

      It is more common in males

    • B. 

      Causes urethritis, cervicitis, epididymitis, PID and possible infertility

    • C. 

      Doesnt cause disseminated infections

    • D. 

      Resistant to effects of complement system

  • 18. 
    25 y/o female patient present s with cervical discharge, pelvic pain, dispareunia and bleeding, which of the following is a plausible assumption
    • A. 

      Infection is caused by S. Pneumonia

    • B. 

      Infection is not caused by N. Gonorrhea

    • C. 

      Infection is caused by B. Fragilis

    • D. 

      All of the above

    • E. 

      None of the above

  • 19. 
    N. meningitidis normally colonize respiratory mucosal epithelia but are capable of infecting the blood stream or CSF
    • A. 

      True

    • B. 

      False

  • 20. 
    Which quality of neisseria spp. makes them poor targets for opsonization
    • A. 

      They are obligate parasites of humans

    • B. 

      Women are usually asymptomatic carries

    • C. 

      Adhere to epithelium and multiply by use of pili

    • D. 

      Phase variation and variability of structures

    • E. 

      Normally colonize upper respiratory mucosal epithelia

  • 21. 
    Which best describes Colony Opacity-associated proteins (Opa) 
    • A. 

      Found on the inner membrane of some species of Neisseria

    • B. 

      Responsible for the dark chocolate color of B. Fragilis when cultured on agar

    • C. 

      Found on outer membrane of S. Pneumoniae bacteria

    • D. 

      Lack of Opa causes complicated infections and inhibits uptake of bacteria by neutrophils

    • E. 

      None of the above

  • 22. 
    Which of the following test results would rule out a neisseria infection
    • A. 

      Culture (also susceptibility) on Thayer- Martin or Martin-Lewis media and chocolate agar

    • B. 

      Oxidase test Negative

    • C. 

      Positive clinical presentation

    • D. 

      Gram stain reveals gram negative diplococci within neutrophils of secretion

  • 23. 
    Close contacts of patients with meningococcus infections should be treated prophylactically
    • A. 

      True

    • B. 

      False

  • 24. 
    Which of the following is not included in the treatment regimen for neiserria infection
    • A. 

      Gonoccus treated with cefixime or ceftriaxone

    • B. 

      Anti-chlamydial agent administered

    • C. 

      For meningococcus give ceftriaxone or penicillin

    • D. 

      None of the above

  • 25. 
    Bacteriodes are anaerobic gram negative rods that can cause abdominal abscesses
    • A. 

      True

    • B. 

      False

  • 26. 
    Which property of B. Fragilis allows it to form abscesses
    • A. 

      PSA in capsular polysaccharide complex

    • B. 

      Aids in digestion

    • C. 

      Can breakdown glycans from host

    • D. 

      A & C

    • E. 

      none of the above

  • 27. 
    Abscess formation requires the presence of strict anaerobes and facultative anaerobes entering the peritoneal cavity
    • A. 

      True

    • B. 

      False

  • 28. 
    Infection of the peritoneum is contained and limited by intestinal loops and the omentum
    • A. 

      True

    • B. 

      False

  • 29. 
    Which of the following  is not recommended for treatment of B. Fragilis
    • A. 

      Broad spectrum antibiotics

    • B. 

      Metronidazole

    • C. 

      Drainage if necessary

    • D. 

      None of the above

  • 30. 
    During abscess formation, increased vascular permeability of the peritoneum leads to fibrin build ups
    • A. 

      True

    • B. 

      False