BMS171: Laboratory Diagnosis of Infectious Diseases Lecture Quiz
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Questions and Answers

Which type of microscope is primarily used to visualize bacteria?

  • Fluorescent microscope
  • Electron microscope
  • Dark-ground microscope
  • Light microscope (correct)

    • Which method involves the detection of antibodies in serum for the diagnosis of bacterial infections?

  • IgM rising titre of IgG (correct)
  • Microscopic examination
  • Isolation on culture media
  • Culture technique

    • What is the primary purpose of using a Gram stain on a bacterial sample?

  • To detect the size and shape of bacteria
  • To visualize viruses
  • To detect bacterial motility
  • To differentiate between Gram-positive and Gram-negative bacteria (correct)

    • What technique is NOT considered a direct method for the diagnosis of infectious diseases?

    <p>Antibiotic sensitivity test</p> Signup and view all the answers

    Which of the following is a non-culture technique for the detection of microorganisms?

    <p>Antigen detection and nucleic acid detection (e.g., PCR)</p> Signup and view all the answers

    Which type of culture medium is used to isolate and identify specific types of bacteria?

    <p>Broth</p> Signup and view all the answers

    For the diagnosis of bacterial infections, which method employs molecular techniques like PCR and nucleic acid detection?

    <p>Molecular methods</p> Signup and view all the answers

    What is the primary purpose of the QuantiFERON-TB test in the diagnosis of infections?

    <p>Serological method</p> Signup and view all the answers

    What is the primary function of biochemical reactions in the identification of bacteria?

    <p>To determine the presence of specific enzymes produced by bacteria</p> Signup and view all the answers

    Among the following, which process is typically performed prior to further processing of specimens in the laboratory?

    <p>Microscopic Examination</p> Signup and view all the answers

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