Rickettsial Dz’s Of Humans; Typical Bacterial Pneumonias

7 Questions

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Bacteria Quizzes & Trivia

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Questions and Answers
  • 1. 
    A 36-year-old man in Texas with fever, headache, myalgia, and tick exposure had a serological test that showed antibodies against Ehrlichia chafeeensis. What is a feature of Ehrlichia that differs from other Rickettsia?
    • A. 

      Invasion of mononuclear leukocytes

    • B. 

      Invasion of vascular endothelium

    • C. 

      Cell wall that contains peptidoglycan

    • D. 

      Cell wall that contains lipopolysaccharide

    • E. 

      Invasion of polymorphonuclear leukocytes

  • 2. 
    • A. 

      Mosquito

    • B. 

      Body louse

    • C. 

      Tick

    • D. 

      Flea

    • E. 

      Sand fly

  • 3. 
    • A. 

      All are transmitted by ticks except for Rickettsia typhi, which is transmitted by lice

    • B. 

      Rocky Mountain spotted fever is transmitted mainly by Amblyoma ticks found in Texas

    • C. 

      Anaplasma is transmitted mainly by Ixodes ticks, which can be co-infected with Babesia or agent of Lyme disease

    • D. 

      Epidemic typhus is transmitted mainly by rodent fleas

  • 4. 
    A 50 year old man diagnosed as having the features of a lobar Pneumonia. Which one of the following symptoms is most indicative of pneumonia?
    • A. 

      He had chest pain, cough and difficulty with lying flat in bed at nights

    • B. 

      He had fever, hoarseness, a post-nasal drip and a cough

    • C. 

      There was fever, left chest pain on breathing, cough, and yellow sputum

    • D. 

      He had cough, acute shortness of breath, hemoptysis and left calf pain

    • E. 

      On walking that morning he had a wheezy chest, cough and shortness of breath

  • 5. 
    A 62-year-old male presented with the sudden onset of shaking chills, cough productive of thick yellow sputum, and dyspnea. The x-ray showed lobar consolidation of the right lower lobe. Sputum culture grew Streptococcus pneumoniae. Which clinical feature of this case of typical pneumonia best differentiates it from atypical pneumonia?
    • A. 

      Sudden onset

    • B. 

      Thick purulent sputum

    • C. 

      Shaking chills

    • D. 

      X-ray pattern

    • E. 

      Culture result

  • 6. 
    An 86-year-old man was admitted to the hospital with a fever and chest x-ray evidence of consolidation and received antibiotics.  Two weeks after his initial admission, he was re-admitted to the hospital with fever, a purulent cough, and dyspnea. What organism was likely to have been cultured from sputum during his second illness?
    • A. 

      Streptococcus pneumonia

    • B. 

      Haemophilus influenza

    • C. 

      Staphylococcus epidermidis

    • D. 

      Klebsiella pneumonia

    • E. 

      Moraxella catarrhalis

  • 7. 
    A 23-year-old pregnant woman is admitted to hospital in severe respiratory distress following a week-long influenza-like illness for which she received symptomatic treatment only.  A respiratory specimen taken in intensive care shows Gram-negative bacilli. What is the most likely causative agent?
    • A. 

      Streptococcus pneumonia

    • B. 

      Haemophilus influenzae

    • C. 

      Staphylococcus aureus

    • D. 

      Klebsiella pneumoniae

    • E. 

      Moraxella catarrhalis