LabIV- Mycology (Dx, common pathogenic dermatophytes).txt

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Author:
heather.dundas
ID:
236919
Filename:
LabIV- Mycology (Dx, common pathogenic dermatophytes).txt
Updated:
2013-09-24 23:05:57
Tags:
VTI
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VTI
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  1. Name 2 preparation procedures:
    TS
    • tease
    • scotch tape
  2. In the first step of tease:
    -1 gtt of stain is placed on a slide.
    What is the stain used?
    lactophenyl cotton blue (LPCB) or NMB
  3. step 2 of tease:
    -what is used to pick mold off of the agar?
    flamed teasing needles (tweezers)
  4. Name the remaining steps for tease prep:
    MAE
    • mix sample with stain
    • add cover
    • examine under 10x then 40x
  5. Steps for scotch tape prep:
    CAPE
    • collect sample w. clear tape
    • add 1gtt of stain to slide
    • place tape on slide on top of stain
    • examine under 10x then 40x
  6. What acts as a cover slip in scotch tape prep?
    • the tape itself
  7. what are the morphologic features we look for when looking at mold?
    HSF
    • hyphae
    • spores
    • fruiting bodies
  8. septate-
    divisions of hyphae
  9. non-septate-
    no divisions of hyphae
  10. spores aka
    condida
  11. 2 forms of spores
    • macro
    • micro
  12. Fruiting bodies are made of what?
    spores enclosed in sacs
  13. Dz caused by dermatophytes names:
    • dermatomycosis
    • dermatophytosis
    • cutaneous mycosis
    • ring worm
  14. c.s. of dermatophytes:AHRB
    • alopecia in circular area
    • hyperkeratosis
    • redness
    • brown spot
  15. What does microsporum canis do under a UV light?
    fluorensce and turn green
  16. What is the most common cause of ringworm in dogs and cats?
    microsporum canis
  17. What may microsporum canis produce in humans?
    lesions
  18. Trichophyton causes ring worm in what species:PCHCCHGKR
    • pigs
    • cats
    • horses
    • cattle
    • chicken
    • hedge hogs
    • guinea pig
    • kangaroos
    • rabbits
  19. Name 2 trichophytons:TM,TV
    • T. metagrophytes
    • T.Verracosum
  20. What is zoonotic and common in cattle?
    T. Verracosum
  21. What does aspergillus grow well on?
    Sabourad's Dextrose Agar (SAB)
  22. Saprophyte is often described as what harmless
    aspergillus species
  23. Even though aspergillus is common can it be pathogenic?
    yes it is opportunistic
  24. If aspergillus causes dz what does it cause?
    URI
  25. What species is a apergillus infx common?
    bird

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