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Micro > 4opportunistic > Flashcards

4opportunistic Flashcards

0
Q

Types of opportunistic

A

Saprophytic

Endogenous

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1
Q

Due to fungi of low virulence

A

Opportunistic

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2
Q

Most frequent opportunistic

A

Candida
Cryptococcus
Aspergillus
Mucor

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3
Q

Endogenous organism found in 40-80% normal human beings

A

Candida

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4
Q

Candida is found in? 4

A

Mouth
Skin
Gut
Vagina

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5
Q

Candida in culture ir tissue

A

Oval budding yeast

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6
Q

2 kinds of candida formationp

A

Pseudohyphae

Germ tube

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7
Q

C albicans form what morphology?

A

Germ tube

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8
Q

Moist opaque colonies, soft cream colored, what agar?

A

Blood agar at 1day body temp

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9
Q

3 clinical findings of candida?

A

Cutaneous/mucosal
Systemic
Mucocutaneous chronic

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10
Q

Examples of cutaneous candidiasis

A

Intertriginous
Oral thrush
Onychomycosis
Vulvovaginitis

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11
Q

Common in obese and diabetic individuals

A

Intertriginous

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12
Q

Patchy confluent whitish paeudomembranous lesion in tongue lips, gums; aids patients; corticosteroid and abx therapy

A

Oral thrush

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13
Q

Painful, erythematous swelling of nail fold

A

Onychomycosis

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14
Q

Yeast invasion of vaginal mucosa

A

Vulvovaginitis

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15
Q

Systemic candidiasis is caused by?

A

Catheters, surgery, drug abuse

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16
Q

Onset of chronic mucocutaneous candidiasis

A

Early childhood

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17
Q

Microscopic exam of candida, what to use?

A

KOH, calcofluor white

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18
Q

T or f? Sputum cultures has no value in candidiasis

A

T, part of normal flora

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19
Q

Rapid screening for c albicans

A

Germ tube test

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20
Q

Crucial for resistance to systemic candidiasis

A

Neutrophil

21
Q

Treatment for systemic candidiasis

A

FC, fluconazole, caspofungin?

22
Q

Ubiquitous saprophyte

A

Aspergillus

23
Q

Most common aspergillus

A

Fumigatus

24
Q

3 principal entities of aspergillus

A

Allergic bronhopulmonary aspergillosis
Pulmo aspergilloma
Invasive aspergillsis

25
Q

Nosocomial infection is possible

A

Aspergillus

26
Q

Morphology of aspergillus

A

Long condiosphore w terminal vesicle producing basipetal conidia

27
Q

When aspergillus invades preexisting cavities

A

Fungus ball

28
Q

Invasive aspergillosis may cause

A

Endocarditis
Osteomyelitis
Meningitis

29
Q

Micro exam demonstrate hyaline dichotomously branching

A

Aspergillus

30
Q

In ID presence of >=3 precipitin bands indicate

A

Severe dse

31
Q

ID test not helpful in what aspergillus entity

A

Invasive aspergillosis

32
Q

Treatment for aspergillus

A

Ampo B

33
Q

Other term for mucormycosis

A

Zygomycosis

34
Q

Mucormycosis is acute inflamm of what?

A

Blood vessels/soft tissues

35
Q

Mucor is commonly found in?

A

Moldy bread!!

36
Q

Major clinical form of mucormycosis

A

RhinocerebrAl infection

37
Q

Follows inhalation of sporangiospores w invasion of lung parenchyma and VASCULATURE

A

Thoracic mucormycosis

38
Q

Cottony colonies

A

Mucormycosis

39
Q

Micro exam of mucor identification is based on?

A

Sporangial structures

40
Q

Treatment for mucormycosis

A

Ampho B

41
Q

Yeast with thick polysaccharide capsule

A

Cryptococcus neoformans

42
Q

Cryptococcus is found in what?

A

Dry pigeon and chicken droppings

43
Q

Morphology of crytococcus that may suppress t cell

A

Capsule

44
Q

Additional virulence factor of cryptococcus

A

Phenoloxidase

45
Q

Pathogenesis of cryptococcus

A

Inhalation;
Pulmo infection;
Meningoenceph

46
Q

_____ begin w visual problems headache stiffness coma disorientation

A

Menindoenceph

47
Q

Mass in mediastinum which may be mistaken for lymphoma

A

Cryptococcoma

48
Q

How to demonstrate the capsule of cryotoccus?

P

A

India ink test

49
Q

Std for meningo + cryptococcus

A

AmpHO B And FC

Micro (24 decks)

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