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12 Cards in this Set
- Front
- Back
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Dermatophytes |
Fungus that affects keratinized areas (nails, hair, skin) Known as ringworm. Found in soil and is zoonotic. |
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Wood's Lamp |
This is a tool used to diagnosis dermatophytes (ringworm). It is an apple green color with only 50% fluoresce. Need to allow for this tool to warm up for 15 minutes prior to usage. |
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Dermatophyte Test Media (culture) |
Clean area to be tested with alcohol to remove contaminants, then pluck a few hairs from active area of lesion or scrape a few skin cells and inoculate media. Check every few days for 10 - 14 days. Positive will turn media red and growth with buff color or off white. |
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Aspergillus |
Worldwide distribution. Transmitted by inhalation. Disease is called aspergillosis; respiratory, gutteral pouch, mycotic keratitis, mycotic abortion. |
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Zygomycetes |
Environmental contaminants (bread mold, Fruit mold) |
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Candida |
Oval shaped and budding on Gram stain. Found in mucous membranes (GI tract, oral cavity, external genitalia, skin) Predisposed by alteration in normal flora. |
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Cryptococcus |
Found in soil and pigeon droppings. Transmitted by inhalation and wound contamination. Diagnosis by India Ink staining - budding yeast with large capsule. |
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Malassezia |
Peanut shaped yeast. Found in the external ear and is seen as an emerging cause of seborrheic dermatitis and hypersensitivity reactions. Diagnosis - Gram stain - oval, bottle-shaped, budding yeast. |
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Coccidiodes |
Found in Southwest USA. Transmitted by inhalation. Diagnosis - Direct exam - yeast or serology. |
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Blastomyces |
Found in Mississippi, Missouri, and Ohio river Valleys. Transmitted by inhalation. Blastomycosis = poor condition, fistulous tract in skin, granulomatous lesions in lungs, and swollen joints. Diagnosis - direct exam, serology, radiography, and culture. |
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Histoplasma |
Found in Mississippi and Ohio river valleys. Found in bat and bird feces. Transmitted by inhalation. Diagnosis = direct exam, radiography, serology, and culture. |
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Sporothrix |
Found in midwest, spores enter puncture wounds. Diagnosis = tissue biopsy. |
