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Flashcards in Fungi Deck (77)
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61

How is Pneumocystis carinii transmitted?

inhaled

62

What is the morphology of Pullalaria?

white-pink colonies turn black as they age

63

Which pulmonary disease is caused by Aspergillus fumigatus?

lung cavity aspergilloma (fungus ball)

64

How is Cryptococcus neoformans transmitted?

inhalation of bird droppings (especially pigeon)

65

Which peptide-containing media is useful for culturing fungi?

sabouraud's agar

66

Identify the main risk factor associated with Cryptococcus neoformans.

immunosupressed individual

67

What are the morphologies of Coccidoides immitis? (2)

mold in soil and spherule in tissues

68

What is the morphology of Cladosporium?

colonies are powdery, black, brown or dark green.

69

What are the major reservoirs for Histoplasma capsulatum? (2)

soil (mold form), animal tissues (yeast form).

70

Are most fungal spores sexual or asexual?

asexual

71

What lab findings are useful to help diagnose Tinea? (2)

hypae can be seen in skin scraping treated with 10% KOH; will fluoresce under UV light (wood's lamp)

72

What disease does C. albicans cause in IV drug users?

endocarditis

73

What are the clinical manifestations of Histoplasma capsulatum? (5)

histoplasmosis-upper respiratory tract infection may progress to pneumonia with progressive cough, night sweats, weight loss (compare TB). Also painless oral ulcers, hepatosplenomegaly and lymphadenopathy.

74

What are the clinical manifesations of Rhizopus?

allergy (spores)

75

What regions are associated with Blastomyces dermatiditis? (2)

found in the Mississippi river valley and parts of Africa

76

What is the major risk factor associated with cladospourium?

old, wet buildings

77

Identify relevant epidemiology and risk factors associated with Stachybotris. (2)

infants. cigarette smoke