VTA 130

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VTA 130
2012-01-30 23:40:50
week two review

parasitology/clinical microbiology
Show Answers:

  1. What type of parasite is a virus?
    • obligate intracellular
    • hard to eliminate
  2. What is the intermediate host for tapeworm?
  3. what is dirofilaria?
    • Nematode
    • Heartworm
    • Mosquito is intermediate host for
  4. what are the 2 types of skin that enter thru the skin?
    • hookworm (nematode; ancylostoma)
    • threadworms
  5. what are the symptoms of giardia?
  6. What is the active function of a FFT?
    parasitic eggs are lighter in weight than fecasol solution and float to top and stick to coverslip
  7. what is another word for intermediate host?
  8. what is the vector for heartworm?
  9. how is dermatophytosis (ringworm) transmitted?
    fungal spores being shed from infected animals, which can survive 2-3y in the environment
  10. what is pediculosis?
  11. From where is cerebrospinal fluid collected?
    the spinal cavity
  12. What happens to DTM if there is pathogenic growth
    turns from yellow to red
  13. Can strict anaerobic bacteria grow in the presence of oxygen?
  14. Dermatophytes cause what?
  15. What is a dermatophyte?
    a parasitic fungi that invades superficial layers of hair, skin andn nails, but not living tissues, and causes ringworm
  16. What is sent, and how much, for a fecal culture?
    1-2 grams fresh feces
  17. What is the reason for covering DTM after it has been innoculated?
    fungi grow best with less oxygen and less airflow
  18. Which mite is condidered to be normal flora of the skin?
  19. What is toxoplasma?
    • a protozoa transmitted in cat feces
    • pregant women must not clean litterboxes b/c toxoplasma is dangerous to human fetus
  20. What is a common name for a trematode?
  21. Fleas are an intermediate host for what?
    • tapeworm
    • Dipylidium
    • Taniea
  22. What causes mange?
    mites such as demodex and sarcoptes
  23. What is the scientific name for an ear mite?
  24. What is the scientific name for a tick?
    • Babesia
    • Ehrlichidia
    • Ixodes
    • Dermaceptor
  25. What is the scientific name for a flea?
  26. What are the scientific names for skin mites?
    • Demodex
    • Sarcoptes
  27. How is Demodex collected?
    • Skin scrape
    • squeeze skin to encourage mites out
    • scrape with slide until just drawing blood
  28. Cestodes are usually found where?
  29. Name 3 diseases xmitted by ticks:
    • Lyme disease
    • Rocky Mountain spotted fever
    • Babesiosis
  30. Name 3 conditions caused by fleas:
    • FAD
    • Alopecia
    • Flea anemia
  31. The objective of specimin collection is to obtain a sample that is representative of the:
    disease process
  32. Gram-positive bacteria retain this color when using gram stain:
  33. when beginning the process of differentiating bacteria, the first step is to do this:
  34. This bacteria is usually considered to be opportunistic pathogens of wounds and otitis:
  35. The most convenient media, which is selective and differential, for isolation of fungi is:
    • DTM (Dermatophyte media)
    • (medium turns from yellow/orange to red if growth)
  36. these pathogens are obligate intracellular parasites and best recovered from living tissue:
  37. Viruses are most freq, diagnosed using:
    antige testing
  38. Antibodies are produced by an infected animal after ______ days from exposure to an infectious agent.
  39. The presence of antibodies in serum may be reported quantitatively as a:
  40. Zoonotic infections transferred to staff can be considered a biosafety problem in connection with:
    nosocomial infections
  41. The most important step in preventing nosocomial bacterial infections in a veterinary hospital is:
    hand washing by staff