True or False:
Fungi resemble plants in that both contain chlorophyll
False
A patient's sputum contains a dimorphic fungus. If the sputum is put on a slide and a coverslip is added, what would you expect to observe--- hyphae or yeast?
Yeast because the sample is a body fluid specimen
What are knots of twisted hyphae called?
Nodular organs
What type of reproductive structure is observed?
Macroconidium
True or False:
Arthroconidia reproduce by fragmentation
True
True or False:
Chlamydospores of Candida albicans will germinate to form new conidia when mature
False
The conidiogenous cell in the picture is a(an):
a. Phialide
b. Sporangium
c. Poroconidium
d. Annellide
e. Chlamydoconidium
d. Annellide
Blastoconidia that have elongated are termed:
a. Mother cells
b. True hyphae
c. Chlamdospores
d. Conidia
e. Pseudohyphae
e. Pseudohyphae
Name the structures
A. Sporagiospore
B. Columella
C. Sporangiophore
Label the picture
Mature zygosporangium
What is the picture of?
Blastoconidia
Label the picture
Racquet hyphae
Label the picture
Macroconidia
What is this a picture of?
Verrucose
Ascospore
Vegetative hyphae
Sessile chlamydoconidia
Granular
Dimorphism
Basidiospores
Arthroconidia
A patient is seen by his physician for a hard, nonmoving nodule below the skin on his right index finger. There are no other symptoms. The infection that this patient is most likely presenting is:
a. Superficial
b. Cutaneous
c. Subcutaneous
d. Systemic
c. Subcutaneous
This fungus produces (Phialoconidia/annelloconidia). It has no known sexual stage; thus this figure must represent a(n) (Anamorph/Teleomorph) and is classified in the phylum (Basidiomycota/Deuteromycota)
Phialoconidia
Anamorph
Deuteromycota
True or False:
With a sputum culture, one would expect to observe growth of throat organisms
True
Why is a urine specimen collected upon rising in the morning?
As a way of incubating and allowing a better chance to grow anything
The fungal organism most commonly found in vaginal infections is:
a. Cryptococcus neoformans
b. Coccidioides immitis
c. Torulopsis glabrata
d. Candida albicans
e. Geotrichum candidum
d. Candida albicans
True or False:
Do not disinfect skin or nail areas with alcohol before taking scrapings, as the disinfectant will kill any pathogenic fungi you want to recover
False
True or False:
Typically fungal infection is so overwhelming by the time it is isolated from blood or cerebrospinal fluid, there is no need to concentrate the specimen
True
True or False:
Granules from subcutaneous lesions only respresent necrotic material and therefore should be disregarded
False
Why is it important to perform a direct mount examination on every specimen?
Allows you to send out an immediate preliminary report to the physician
You will know whether or not to innoculate special media
