Microbiology Specimens for Examination and Culture Quiz
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Questions and Answers

Which of the following specimens is Gram and Wright staining most useful for?

  • Sputum samples
  • Blood samples
  • Vaginal smears (correct)
  • Urine samples
  • In addition to vaginal smears, which other specimen type is mentioned in the text for Gram and Wright staining?

  • Synovial fluid
  • BAL cytocentrifuge smears (correct)
  • Cerebrospinal fluid
  • Pleural fluid
  • What is the purpose of using Gram and Wright staining on vaginal smears according to the text?

  • To detect the presence of gonorrhea
  • To detect the presence of bacterial vaginosis
  • To detect the presence of Candida species (correct)
  • To detect the presence of Trichomonas
  • What is the purpose of using Gram and Wright staining on BAL cytocentrifuge smears according to the text?

    <p>The text does not specify the purpose for BAL cytocentrifuge smears</p> Signup and view all the answers

    What is the main purpose of Gram and Wright staining mentioned in the text?

    <p>To detect the presence of bacteria</p> Signup and view all the answers

    Why are aspirates, blood, bone marrow, cerebrospinal fluid, and tissue biopsies appropriate specimens for direct examination and culture?

    <p>They provide a deep insight into the underlying infection</p> Signup and view all the answers

    Which of the following materials is NOT listed as an appropriate specimen for direct examination and culture?

    <p>Stool samples</p> Signup and view all the answers

    What type of specimen is especially useful for direct examination when dealing with subcutaneous lesions?

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

    Why is it important to examine respiratory tract secretions like sputum and bronchoalveolar lavage fluid directly?

    <p>To determine the type of bacteria causing the infection</p> Signup and view all the answers

    What can be inferred from the fact that hair, nails, or skin scrapings are mentioned as appropriate specimens for direct examination and culture?

    <p>Infections can also affect external body parts like hair and nails</p> Signup and view all the answers

    Which of the following specimens is NOT mentioned as suitable for a wet mount examination?

    <p>Urine sample</p> Signup and view all the answers

    What is the primary purpose of initially examining the specimen with a dissecting microscope?

    <p>To identify any primary microscopic features</p> Signup and view all the answers

    Which of the following features can be observed during the primary microscopic examination using the 40× objective?

    <p>All of the above</p> Signup and view all the answers

    What type of hyphae can be distinguished during the primary microscopic examination?

    <p>Both septate and nonseptate hyphae</p> Signup and view all the answers

    Based on the information provided, which of the following statements is TRUE?

    <p>The primary microscopic examination can provide clues about the type of fungus present</p> Signup and view all the answers

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