Laboratory Diagnosis of Opportunistic Aspergillosis and Candidiasis
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Questions and Answers

What is the recommended method for collecting blood specimens for fungal diagnosis?

  • Collect in anaerobic transport media
  • Collect on a swab
  • Collect aseptically using a syringe and needle (correct)
  • Refrigerate the sample before transportation

    • For how long can nails specimens be transported at room temperature after collection?

  • > 72 hours
  • < 72 hours (correct)
  • < 48 hours
  • < 24 hours

    • Which specimen collection method is recommended for eye corneal scrapings for fungal diagnosis?

  • Inoculated directly (correct)
  • Refrigerated before transport
  • Stored in anaerobic transport media
  • Using anaerobic transport containers

    • What is the appropriate technique for collecting skin specimens for fungal diagnosis?

    <p>Scrape with a dull edge of scalpel or glass slide</p> Signup and view all the answers

    Which body fluid collection method is NOT recommended for fungal diagnosis?

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

    How should medical devices collected surgically be transported for fungal diagnosis?

    <p>&lt; 15 minutes: room temperature; if longer, 44°C</p> Signup and view all the answers

    What is the preferred carbon source for fungi?

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

    Which of the following temperature ranges do most fungi grow within?

    <p>0 to 35°C</p> Signup and view all the answers

    In lichen associations, what is the name given to the fungi component?

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

    Which type of lichen is characterized by a leafy appearance?

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

    What is the term for the association between plant roots and fungi?

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

    Which of the following is NOT a use of mycorrhizae?

    <p>Determination of rock age</p> Signup and view all the answers

    What is the purpose of using Dermatophyte Test Medium?

    <p>To diagnose dermatophyte infections by color change</p> Signup and view all the answers

    Which agar promotes the mold to yeast conversion of several fungal species such as Histoplasma capsulatum and Blastomyces dermatitidis?

    <p>Blood Glucose Cysteine Agar</p> Signup and view all the answers

    What is the purpose of using Niger Seed And Esculin Base Medium?

    <p>Selective isolation and identification of Cryptococcus spp</p> Signup and view all the answers

    Which media stimulates the production of spores and sporulating bodies?

    <p>PDA And Potato Flake Agar</p> Signup and view all the answers

    For what purpose is Yeast Extract Phosphate agar primarily used?

    <p>Presumptive identification of Candida spp</p> Signup and view all the answers

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