Micro Bio Ch 24

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  1. Which of the following statements about otitis media is false?

    A) It is caused by Streptococcus pyogenes.  
    B) It is a complication of tonsillitis.
    C)It is transmitted by swimming pool water.  
    D) It is caused by rhinovirus.
    E) It is caused by Staphylococcus aureus.
    It is caused by rhinovirus.
  2. Which of the following does NOT confirm a diagnosis of strep throat?

    A) Hemolytic reaction 
    B) Bacitracin inhibition  
    C) Symptoms  
    D) Serological tests  
    E) Gram stain
    Symptoms
  3. Penicillin is used to treat all of the following EXCEPT

    A) Streptococcal sore throat.  
    B) Diphtheria. 
    C) Pneumococcal pneumonia.
    D) Mycoplasmal pneumonia.
    E) Scarlet fever.
    Mycoplasmal pneumonia.
  4. Mycoplasmal pneumonia differs from viral pneumonia in that

    A) Mycoplasmal pneumonia doesn't have any known etiologic agent.
    B)Mycoplasmal pneumonia is treated with tetracyclines.
    C) Viral pneumonia is treated with tetracyclines.
    D)The symptoms are distinctly different.
    E) Mycoplasma can't be cultured.
    Mycoplasmal pneumonia is treated with tetracyclines.
  5. Which of the following pairs is mismatched?

    A) Corynebacterium – gram-positive rod  
    B) Mycobacterium – acid-fast rod
    C) Mycoplasma – gram-positive pleomorphic rod  
    D) Bordetella – gram-negative
    pleomorphic rod
    E)Haemophilus – gram-negative rod
    Mycoplasma – gram-positive pleomorphic rod
  6. Which of the following microorganisms causes symptoms most like tuberculosis?

    A) Histoplasma 
    B) Coccidioides 
    C) Legionella  
    D) Mycoplasma  
    E) Influenzavirus
    Histoplasma
  7. Which of the following CANNOT lead to a positive tuberculin skin test?

    A) Vaccination  
    B) Current tuberculosis infection  
    C) Previous tuberculosis infection  
    D) Immunity to tuberculosis
    E) Being near someone with tuberculosis
    Being near someone with tuberculosis
  8. Which of the following diseases is NOT correctly matched to its vaccine?

    A) Tuberculosis – toxoid
    B) Whooping cough – heat-killed bacteria  
    C) Diphtheria – toxoid
    D) Influenza – viruses grown in embryonated eggs  
    E) Pneumococcal pneumonia – capsular polysaccharides
    Tuberculosis – toxoid
  9. Which of the following diseases is NOT correctly matched to a virulence factor?

    A) Diphtheria – exotoxin  
    B) Scarlet fever – exotoxin 
    C) Pneumococcal pneumonia – exotoxin
    D) Haemophilus pneumonia –endotoxin  
    E) Whooping cough – endotoxin
    Pneumococcal pneumonia – exotoxin
  10. Which of the following diseases has a cutaneous form, especially in individuals over 30 years of age?

    A) Coccidioidomycosis
    B) Diphtheria  
    C) Legionellosis  
    D) Scarlet fever  
    E) Psittacosis
    Diphtheria
  11. Which of the following causes an infection of the respiratory system that is transmitted
    by the gastrointestinal route?

    A) Streptococcus pyogenes
    B) Mycobacterium tuberculosis  
    C) Mycoplasma pneumoniae
    D) Haemophilus influenza  
    E) Streptococcus pneumoniae
    Mycobacterium tuberculosis
  12. Which of the following does NOT cause pneumonia?

    A) Legionella
    B) Haemophilus
    C) Mycoplasma  
    D) RSV  
    E) Histoplasma
    Histoplasma
  13. Which of the following pairs is mismatched?

    A) Epiglottitis – Haemophilus
    B) Q fever – Rickettsia  
    C) Psittacosis – Chlamydia
    D) Whooping cough – Bordetella
    E) Melioidosis – Burkholderia
    Q fever – Rickettsia
  14. Which of the following causes opportunistic infections in AIDS patients?

    A) Pneumocystis
    B) Aspergillus  
    C) Rhizopus  
    D) Mucor  
    E) All of the above
    All of the above
  15. Which of the following diseases is NOT correctly matched to its reservoir?

    A) Tuberculosis – cattle  
    B) Histoplasmosis – soil  
    C) Psittacosis – parakeets  
    D) Coccidioidomycosis – air
    E) Pneumocystis – humans
    Coccidioidomycosis – air
  16. Which of
    the following does NOT produce an exotoxin?

    A) Bordetella pertussis  
    B) Corynebacterium diphtheria  
    C) Mycobacterium tuberculosis
    D) Streptococcus pygogenes  
    E) All of the above produce an exotoxin
    Mycobacterium tuberculosis
  17. Which one of the following causes a disease characterized by the catarrhal, paroxysmal,
    and convalescent stages?

    A) Bordetella pertussis  
    B) Corynebacterium diphtheria   
    C) Mycobacterium tuberculosis
    D) Streptococcus pyogenes  
    E) Respiratory syncytial virus
    Bordetella pertussis
  18. Which one of the following is an irregular, gram-positive rod?

    A) Bordetella pertussis  
    B) Corynebacterium diphtheria  
    C) Myobacterium tuberculosis
    D) Streptococcus pyogenes  
    E) Pneumocystis jirovecii
    Corynebacterium diphtheria
  19. Infection by which of the following results in the formation of Ghon complexes?

    A) Bordetella pertussis  
    B) Corynebacterium diphtheria  
    C) Mycobacterium tuberculosis
    D) Streptococcus pyogenes  
    E) Blastomyces dermatidis
    Mycobacterium tuberculosis
  20. Which one of the following produces the most potent exotoxin?

    A) Bordetella pertussis  
    B) Corynebacterium diphtheria  
    C) Mycobacterium tuberculosis
    D) Streptococcus pyogenes  
    E) Streptococcus pneumoniae
    Corynebacterium diphtheria
  21. The recurrence of influenza epidemics is due to

    A) Lack of antiviral drugs.  
    B) The Guillain-Barré syndrome.  
    C) Antigenic shift.
    D) Lack of naturally acquired active immunity.  
    E) HA spikes
    Antigenic shift.
  22. Which of the following is an opportunistic pathogen?

    A) Pneumocystis  
    B) Legionella   
    C) Histoplasma  
    D) Mycoplasma  
    E) Rhinovirus
    Pneumocystis
  23. Which of the following etiologic agents results in the formation of abscesses?

    A) Staphylococcus 
    B) Mycoplasma  
    C) Streptococcus  
    D) Blastomyces  
    E) Coccidioides
    Blastomyces
  24. A healthy carrier state exists for

    A) Corynebacterium diphtheriae.  
    B) Streptococcus pneumoniae.  
    C) Beta-hemolytic streptococci.
    D) Haemophilus influenzae.  
    E) All of the above
    All of the above
  25. Which of the following is most susceptible to destruction by phagocytes?

    A) Chlamydophila psittaci  
    B) Streptococcus pneumonia  
    C) Streptococcus pyogenes  
    D) Influenza virus  
    E) Histoplasma capsulatum
    Streptococcus pyogenes
  26. Infection by which of the following is often confused with viral pneumonia?

    A) Blastomyces  
    B) Coccidioides  
    C) Mycoplasma  
    D) Streptococcus  
    E) None of the above
    Mycoplasma
  27. Which one of the following causes a disease characterized by a red rash?

    A) Blastomyces  
    B) Coccidioides  
    C) Mycoplasma  
    D) Streptococcus  
    E) RSV
    Streptococcus
  28. Inhalation of arthroconidia is responsible for infection by which of the following
    organisms?

    A) Blastomyces  
    B) Coccidioides  
    C) Mycoplasma  
    D) Streptococcus  
    E) Chlamydophila
    Coccidioides
  29. Which of the following pairs is mismatched?

    A) Q fever – fleas  
    B) Psittacosis – parrots  
    C) Pneumocystis – nosocomial  
    D) Coccidioides – soil
    E) Blastomyces – soil
    Blastomyces – soil
  30. A patient has pneumonia. Gram-negative rods are cultured on nutrient agar from a
    sputum sample. The etiology is

    A) Burkholderia pseudomallei.  
    B) Chlamydophila psittaci.  
    C) Haemophilus influenzae.
    D) Legionella pneumophila.
    E) Streptococcus pneumonia.
    Burkholderia pseudomallei.
  31. The patient is suffocating because of an inflamed epiglottis. What is the etiology?

    A) Corynebacterium  
    B) Haemophilus  
    C) Bordetella  
    D) Mycobacterium  
    E) Can't tell
    Haemophilus
  32. The patient has a sore throat. What is the etiology?

    A) Corynebacterium  
    B) Haemophilus  
    C) Bordetella  
    D) Mycobacterium  
    E) Can't tell
    Can't tell
  33. The patient is suffocating because of the accumulation of dead tissue and fibrin in
    her throat. What is the etiology?

    A) Corynebacterium  
    B) Haemophilus  
    C) Bordetella  
    D) Mycobacterium  
    E) Can't tell
    Corynebacterium
  34. Infection by which of the following begins in lungs and spreads to skin?

    A) Blastomyces  
    B) Coccidioides  
    C) Histoplasma  
    D) Mycobacterium  
    E) Pneumocystis
    Blastomyces
  35. Which one of the following organisms does NOT belong with the others?

    A) Blastomyces  
    B) Coccidioides  
    C) Histoplasma  
    D) Mycobacterium  
    E) Pneumocystis
    Mycobacterium
  36. Microscopic examination of a lung biopsy shows thick-walled cysts. What is the
    etiology?

    A) Blastomyces  
    B) Coccidioides  
    C) Histoplasma  
    D) Mycobacterium  
    E) Pneumocystis
    Pneumocystis
  37. Microscopic examination of a lung biopsy shows spherules. What is the etiology?

    A) Blastomyces  
    B) Coccidioides  
    C) Histoplasma  
    D) Mycobacterium  
    E) Pneumocystis
    Coccidioides
  38. You are trying to identify the cause of a patient's middle ear infection. After 24
    hours, there is no growth on blood agar incubated aerobically at 37°C. Your
    next step is to try again,

    A) Using nutrient agar.  
    B) Incubating at 25°C.  
    C) Incubating anaerobically.  
    D) Incubating at 45°C.
    E) Then give up.
    Incubating anaerobically.
  39. A patient who presents with red throat and tonsils can be diagnosed as having

    A) Streptococcal pharyngitis.  
    B) Scarlet fever.  
    C) Diphtheria.  
    D) Common cold.  
    E) There is insufficient information.
    There is insufficient information.
  40. A patient has a paroxysmal cough and mucus accumulation. What is the etiology of the
    symptoms?

    A) Bordetella  
    B) Corynebacterium  
    C) Klebsiella  
    D) Mycobacterium  
    E) Mycoplasma
    Bordetella
  41. A patient has fever, difficulty breathing, chest pains, fluid in the alveoli, and a
    positive tuberculin skin test. Gram-positive cocci are isolated from the
    sputum. The patient most likely has


    A) Tuberculosis.  
    B) Influenza.  
    C) Pneumococcal pneumonia.  
    D) Mycoplasmal pneumonia.  
    E) Common cold.
    Pneumococcal pneumonia.
  42. Which of the following respiratory infections can be contracted by ingestion?

    A) Streptococcal pharyngitis  
    B) Diphtheria  
    C) Tuberculosis  
    D) Mycoplasmal pneumonia  
    E) Haemophilus pneumonia
    Tuberculosis
  43. Which of the following is NOT an intracellular parasite?

    A) Chlamydophila  
    B) Coccidioides  
    C) Coxiella  
    D) Influenzavirus  
    E) RSV
    Coccidioides
  44. Which one of the following produces small "fried-egg" colonies on medium
    containing horse serum and yeast extract?

    A) Chlamydophila  
    B) Legionella  
    C) Mycobacterium  
    D) Mycoplasma  
    E) Streptococcus
    Mycoplasma
  45. Legionella is transmitted by

    A) Airborne transmission.  
    B) Foodborne transmission.  
    C) Person-to-person contact.  
    D) Fomites.  
    E) Vectors.
    Airborne transmission.

Card Set Information

Author:
johnmullen
ID:
329929
Filename:
Micro Bio Ch 24
Updated:
2017-03-28 15:50:17
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Micro Bio 24
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Micro Bio Ch 24
Description:
Micro Bio Ch 24 - 45 questions
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