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Microbiology > Mycology > Flashcards

Mycology Flashcards

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Biology 101 flashcards
1
Q

Dermatophytoses

A

Microsporum canis
Trichophyton tonsurans
Epidermophyton floccosum

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2
Q

Green fluorescence on wood’s lamp

A

Dermatophytoses

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3
Q

10% KOH: septate hyphae

A

Dermatophytoses

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4
Q

10% KOH: spaghetti and meatballs appearance

A

Tinea versicolor or An-an

Malassezia furfur

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5
Q

DOC for Tinea versicolor

A

Miconazole

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6
Q

Transmission is through thorn prick (rose)

A

Sporotrichosis

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7
Q

DOC for Sporotrichosis

A

Itraconazole or potassium iodide

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8
Q

Systemic mycoses

A

Coccidioides immitis
Histoplasma capsulatum
Blastomyces dermatitidis
Paracoccidioides brasiliensis

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9
Q

Causes valley fever: erythema nodosum (desert bumps)

A

Coccidioides immitis

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10
Q

DOC for valley fever

A

Amphotericin B or itraconazole

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11
Q

Mode of transmission of Valley fever

A

Inhalation of arthrospores

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12
Q

2 types of asexual spores of H. capsulatum

A

Tuberculate macroconidia

Microconidia

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13
Q

Bird droppings (Starling’s) or bat guano

A

H. capsulatum

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14
Q

Hides within macrophages

A

H. capsulatum

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15
Q

Closely mimics TB

A

H. capsulatum

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16
Q

DOC for H. capsulatum

A

Amphotericin B or itraconazole

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17
Q

Dimorphic fungus; round yeast with broad-based bud

A

Blastomyces dermatitidis

18
Q

MCC of fungal pneumonia

A

B. dermatitidis

19
Q

DOC for blastomycosis

A

Itraconazole

20
Q

Dimorphic fungus; thick yeast with multiple buds in wheel configuration (mariner’s wheel)

A

Paracoccidioides brasiliensis

21
Q

DOC for Paracoccidioides brasiliensis

A

Itraconazole

22
Q

Opportunistic mycoses

A 
Candida albicans
Cryptococcus neoformans
Aspergillus fumigatus
Rhizopus oryzae and mucor spp
Pneumocystis jiroveci
23
Q

Skin: satellite lesions
Vagina: curd-like discharge

A

Candiasis (immunocompetent)

24
Q

Pseudomembranous esophagitis

A

Candidiasis (immunocompromised)

25
Q

DOC for oropharyngeal and esophageal candidiasis

A

Nystatin swish and swallow

26
Q

DOC for candida skin infection

A

Clotrimazole

27
Q

DOC for disseminated candidiasis

A

Amphotericin B

28
Q

Chemoprophylaxis for candidiasis

A

Fluconazole

29
Q

Oval yeast with narrow-based bud surrounded by a wide polysaccharide capsule seen in India ink

A

Cryptococcus neoformans

30
Q

Bird (pigeon) droppings

A

C. neoformans

31
Q

DOC for C. neoformans infection

A

Amphotericin B and Flucytosine

32
Q

Exist only as molds; septate hyphae that form V-shaped (dichotomous) branches

A

Aspergillus fumigatus

33
Q

Fungus ball in lung cavities

A

A. fumigatus

34
Q

Cutaneous mycoses

A

Dermatophytoses
Malassezia furfur
Sporothrix schenckii

35
Q

Allergic bronchopulmonary aspergillosis (ABPA)

A

A. fumigatus

36
Q

DOC for A. fumigatus infection

A

Amphotericin B

37
Q

Rhino-orbital-cerebral infection with eschar formation; occurs in patients with DKA, burns, or leukemia

A

Rhizopus oryzae and mucor spp.

38
Q

Indeterminate organism; major surface protein undergoes programmed rearrangement; dx is by staining BAL washings

A

Pneumocystis jiroveci

39
Q

Frothy exudate that blocks O2 exchange

A

Pneumocystis jiroveci infection

40
Q

MC AIDS-defining illness; diffuse interstitial pneumonia with ground glass infiltrates bilaterally

A

PCP; occurs when CD4

41
Q

DOC for Pneumocystis jiroveci infection

A

TMP-SMX

Microbiology (9 decks)

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