Flashcards in Opportunistic Mycoses Deck (45)
Loading flashcards...
1
only opportunistic fungal species that exhibits thermal dimorphism
Candida albicans
2
Which is false?
A. Diagnosis of opportunistic mycoses does not require high index of suspicion.
B. The lower your host's resistance is, the higher the chances of disease.
C. Anti-neoplastics, TB and AIDS may increase one's chance of getting opportunistic mycoses.
A
3
Candida grows best at __ pH
A.acidic
B.Neutral
C.Alkaline
C
4
Which is not caused by Candida?
A.oral thrush
B.angular cheilitis
C.balanitis
D.fungus balls
D
D c/o aspergillosis
balanitis:candidiasis @ penis
5
identify: typical skin lesions of Candida, especially @ the feet
satellite lesions
6
The ff are adjectives used to describe Candida lesions except
A.whitish
B.erythematous
C.dematiacous
D.none of the above
C
7
What makes C.glabrata unique?
A.no thermal dimorphism
B.no pseudohyphae
C.no yeast cells
D.A and B
E.B and C
D
8
easiest and fastest way of differentiating Candida species
Germ tube formation
9
in CHROMagar media, C.albicans produces culture that is color
A.green
B.pink
C.yellow
D.white
a
10
in CHROMagar media, C.glabrata produces culture that is color
A.green
B.pink
C.yellow
D.white
B
11
Which Candida species produces germ tube
Candida albicans
12
Basidiomycetous yeasts with large polysaccharide
capsules, found in dry pigeon feces or trees @ tropical regions
A.Aspergillus
B.Candida
C.Cryptococcus
D.Rhizopus
C
13
A.whitish mucoid colonies
B.with capsule
C.possess urease
D.with pseudohyphae
false about Cryptococcus
D
14
phenol oxidase, which catalyzes
the formation of melanin from appropriate phenolic
substrates
laccase
15
laccase is found in which Cryptococcus species?
C. neoformans
C. gattii
16
main components of Cryptococcus' capsular polysaccharide
polymannose,xylose and glucuronic acid.
17
Cryptococcus can produce __, which protects it from oxidative killing
melanin
18
False about culture of Cryptococcus
A. Slimy or mucoid colonies
B. Growth is promoted by cycloheximide
C. Can be identified by the detection of urease
D. Brown pigment due to phenol oxidase (or laccase)
B
inhibited dapat
19
main complications of Cryptococcus involves
A.stomach
B.heart
C.lungs
D.all of the above
C
20
The ___ for cryptococcal
antigen is positive in 90% of patients with cryptococcal
meningitis.
The latex slide agglutination test
21
false about Aspergillus
A. Branching, aseptate mycelium
B. Characteristic conidial head
C. Mold form
D. Invades the lungs and other tissues
A
septate dapat
22
most common Aspergillus species that causes disease
Aspergillus fumigatus
23
Which does not have a clavate head?
A. Aspergillus fumigatus
B. Aspergillus niger
C. Aspergillus flavus
B (Globate head kasi)
24
Which does not have smooth conidiophore?
A. Aspergillus fumigatus
B. Aspergillus niger
C. Aspergillus flavus
C (pitted conidiophore kasi)
25
true or false: Aspergillus fumigatus is inhibited by cyclohexamide
True
26
false about Aspergillus fumigatus
A. produces aerial hyphae
B. long conidiophores with terminal vesicles
C. phialides (at vesicles)produce basipetal chains of conidia
D. septated, dichotomous, 90° angle branching hyphae
D
45 degrees dapat
27
allergic bronchopulmonary aspergillosis ensues when the fungus ___
Colonizes the bronchial tree without invading
the lung parenchyma
28
Which does not happen in allergic bronchopulmonary aspergillosis?
A.asthma
B.recurrent chest infiltrates
C.eosinophilia
D.both type I & II hypersensitivity to Aspergillus antigen
D
I and III dapat
29
Aspergillus fumigatus creates ___ when its inhaled conidia enter an existing cavity, germinate, and produce abundant hyphae in the abnormal extrapulmonary spaces.
fungus balls
30
