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Bacteriology IP5 > export_laundry exam 5 2010 > Flashcards

export_laundry exam 5 2010 Flashcards

1
Q

A dog showed signs indicating a fungal caused pneumonia. You cultured a transtracheal wash for confirmation. What is the likely etiologic agent?

A

Histoplasma capsulatum

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2
Q

This agent caused skin lesions on a dog

A

Microsporum canis

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3
Q

This agent was isolated from a draining skin lesion in the dog.

A

Coccidioides immitis

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4
Q

A penguin from a group of 5 which died due to pneumonia in a zoo soon after arrival from the Antarctic. Histopathology and cultural procedures were conducted.

A

Aspergillus fumigates

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5
Q

This agent caused a skin lesion on the cat.

A

Sporothrix schenckii

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6
Q

A dog died of pneumonia. At necropsy, specimens were taken from the lung for histopathological examination. What is the likely etiologic agent?

A

Histoplasma capsulatum

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7
Q

This agent caused a skin lesion on a pig.

A

Microsporum nanum

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8
Q

This agent caused a skin lesion on a heifer.

A

Trichophyton verrucosum

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9
Q

This agent caused a skin lesion on a cat.

A

Microsporum gypseum

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10
Q

This agent caused a serious lesion on the leg of a horse. It was diagnosed as “leeches”. What is the likely etiologic agent?

A

Pythium insidiosum

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11
Q

A vet student developed this lesion on his arm. A scraping was taken for culture. What is the probable cause?

A

Microsporum canis

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12
Q

You have a client traveling to the area illustrated on this image (green area). You warn him to not let his dog run loose in this area b/c of the danger from this agent.

A

Coccidioides immitis

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13
Q

Histopathology of a lesion in the brain of dog with meningitis. The dog had been running in a recently logged area near Bellingham, Washington. What is the likely etiologic agent?

A

Cryptococcus gatti

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14
Q

This specimen was taken from a biopsy of the digestive tract of a dog with chronic diarrhea. What is the likely etiologic agent?

A

Histoplasma capsulatum

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15
Q

This agent was isolated from a draining skin lesion in the dog.

A

Blastomyces dermatitidis

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16
Q

A dog showed signs indicating a fungal caused pneumonia. You did a transtracheal was for confirmation of the causative agent.

A

Blastomyces dermatitidis

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17
Q

A biopsy was taken from a horse with a nasal polyp. What is the likely etiologic agent? Note: culture results were negative.

A

Rhinosporidium seeberi

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18
Q

This specimen was taken from a placenta of a cow that aborted. Select a possible etiologic agent from the list.

A

Mucor sp.

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19
Q

This specimen was taken from a skin lesion on a dog. The lesion had a yeasty odor. What is the probable cause?

A

Malassezia pachydermatis

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20
Q

This agent caused a skin lesion on the comb of this exotic game rooster.

A

Trichophyton gallinae

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21
Q

You made a diagnosis of this agent in a case of pneumonia in a dog. Although the diagnosis was unusual for Missouri, you confirmed your diagnosis on histopath.

A

Coccidioides immitis

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22
Q

A specimen from a St. Louis cat with a draining skin lesion.

A

Cryptococcus neoformans

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23
Q

Agent isolated from lesion on a horse.

A

Trichophyton equinum

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24
Q

This agent caused ulcerative lesions in the lymphatics of a horse.

A

Sporothrix schenckii

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25
Q

This agent caused a skin lesion on a Guinea Pig.

A

Trichophyton mentagrophytes

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26
Q

A dog was presented with a disseminated fungal disease. Necropsy and culture were done when the dog died.
Note: Picture should be German Shephard

A

Aspergillus terreus

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27
Q

A cat was presented for a possible dermatophyte infection. You did an examination with a Wood’s lamp. What etiologic agent would most likely cause these results?

A

Microsporum canis

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28
Q

This agent causes an ulcerative lymphangitis in horses.

A

Sporothrix schenckii

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29
Q

The natural habitat of this pathogen is often in urban centers b/c of its ability to utilize creatinine found in pigeon feces.

A

Cryptococcus neoformans

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30
Q

Animal: 2 year old boxer in Missouri (dog has not been out of MO)
Symptoms: chronically losing weight, chronic cough, auscultation indicates pneumonia

Lab: radiographs indicate a diffuse interstitial pattern and hilar lymphadenopathy typical of fungal caused pneumonia

Histo: intracellular yeast cells

A

Histoplasma capsulatum

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31
Q

In their natural habitat, these pathogenic fungi are associated with rodent burrows in the Southwestern deserts.

A

Coccidioides immitis

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32
Q

Wood’s Lamp Fluorescence is often helpful in detecting the presence of this dermatophyte.

A

Microsporum canis

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33
Q

The usual cause of Canine Disseminated Aspergillosis.

A

Aspergillus terreus

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34
Q

This genus of fungi is one of the genera commonly implicated in mycotoxicosis.

A

Aspergillus sp.

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35
Q

Acute pneumonia in humans and dogs from this agent is frequently associated with infection acquired from contact in old bird roosts.

A

Histoplasma capsulatum

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36
Q

Most humans in Missouri have had a mild infection with this dimorphic fungus and are sensitive to the antigens on the skin test.

A

Histoplasma capsulatum

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37
Q

Most common cause of dermatophytosis in the cat.

A

Microsporum canis

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38
Q

This dermatophyte is considered to be host-adapted to dogs.

A

none of the above

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39
Q

This agent is the cause of Pythiosis in horses.

A

Pythium insidiosum

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40
Q

The spherule is the characteristic tissue form of these two fungal species.

A

Rhinosporidium seeberi,

Coccidioides immitis

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41
Q

This yeast is noted for the lack of inflammatory response seen in infected tissue when it spreads systemically.

A

Cryptococcus neoformans

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42
Q

Most members of Deuteromycetes are placed in this class when their “perfect state” is delineated.

A

Ascomycetes

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43
Q

Systemic disease with this dimorphic fungus is characterized by bone lesions at the epiphyseal junction.

A

Coccidioides immitis

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44
Q

This form class contains most of the fungi pathogenic to animals.

A

Deuteromycetes

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45
Q

The use of India Ink is a valuable tool in diagnosing infection with this fungal agent.

A

Cryptococcus neoformans

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46
Q

The toxic mushrooms belong to this class of fungi.

A

Basidiomycetes

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47
Q

This is the most common fungal species isolated from guttural pouch mycosis in the horse.

A

Aspergillus fumigates

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48
Q

This species is known to produce Aflatoxins which can cause serious disease in a number of species of animals.

A

Aspergillus flavus (also parasiticus and nominus)

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49
Q

These 3 dimorphic fungi cause systemic disseminated disease in dogs in the United States.

A

Coccidioides immitis,
Blastomyces dermatitidis,

Histoplasma capsulatum

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50
Q

These two compounds/structures are largely responsible for the virulence of Cryptococcus neoformans.

A

Capsule,

Melanin

51
Q

Arthrospores are formed external to the hair shaft.

A

ectothrix

52
Q

Humans are the maintaining host of these types of dermatophytes.

A

anthropophilic fungus

53
Q

An intoxication due to ingestion of toxic metabolites produced by the action of certain molds on some food products.

A

mycotoxicosis

54
Q

The best stain to visualize the fungal cell wall in histopathology.

A

Periodic-acid-Schiff stain

55
Q

This compound is in the Plasmalemma but not in mammalian cell structures.

A

ergosterol

56
Q

Animals are the maintaining host of these types of dermatophytes.

A

Zoophilic fungus

57
Q

The type of spores that are produced by Cryptococcus neoformans.

A

Blastospores

58
Q

The best stain to visualize fungi from culture growth.

A

Lacto-phenol cotton blue

59
Q

The name given for the type of fungal infection that affects the keratinized layers of the animal skin.

A

Dermatophytosis

60
Q

This type of structure that some fungi produce in tissue could best be describes as a “sac of endospores”.

A

Spherule

61
Q

This compound is a structural component of the cell wall of fungi but not of bacteria.

A

chitin

62
Q

Veterinarians often use this type of media in their practices to grow the fungi that affect keratinized layers of the animal skin.

A

Dermatophyte Test Medium

63
Q

Term used for dermatophytes whose major source to the animal is the soil.

A

Geophilic fungus

64
Q

The term for the type of fungal spores that are produced by segmentation of the hyphae.

A

Arthrospores

65
Q

The type of hyphae that are characteristic of the Zygomycetes.

A

Aseptate hyphae

66
Q

This type of fungus could be described as a single celled organism that reproduces by budding

A

yeast

67
Q

Term used by physicians to refer to a fungal infection of keratin in specific body areas.

A

Tinea

68
Q

The type of spores that are produced by Coccidioides immitis in nature.

A

Arthrospores

69
Q

This drug would be useful to treat sporotrichosis in the horse.

A

Potassium iodide

70
Q

These two drugs from different families would be most useful in treatment of a Microsporum canis infection in a cat.

A

Griseofulvin,

Itraconazole

71
Q

This drug would be probable drug of choice for treatment of a yeast caused meningitis in a cat.

A

Fluconazole

72
Q

This drug is commonly added to media used to grow pathogenic fungi to keep other contaminating fungi from growing.

A

Cycloheximide

73
Q

These two drugs from different families would be most useful in treatment of an acute pneumonia caused by Histoplasma capsulatum in the dog.

A

ketoconazole,

amphotericin B

74
Q

Doxycycline, in regards to site of action in the bacteria, affects:

A

process of translation

75
Q

Doxycycline, in regards to use in the patient and action on the bacteria, are:

A

bacteriostatic and time dependent

76
Q

Fungi such as Coccidioides immitis produce “granulomatous disease” syndromes in the dog. The primary difference b/w this granulomatous response and other types of inflammatory responses seen with infectious agents is that the granulomatous response:

A

is characterized by mononuclear type phagocytic cells

77
Q

A family dog has been diagnosed as having a Histoplasma capsulatum pneumonia. Knowing the public health significance of this fungus you:

A

tell the family that the disease is probably not contagious to humans and recommend treatment if progress indicates treatment would be successful

78
Q

Histoplasma capsulatum in the animal body is:
a) facultative intracellular parasite

b) obligate extracellular parasite
c) obligate intracellular parasite

A

c

79
Q

The tissue reaction seen in Cryptococcus meningitis of the cat can best be described as:

A

diffuse granulomatous reaction with few inflammatory cells

80
Q

The disease Sporotrichosis as seen in the horse is often symptomatically diagnosed as:

A

lymphangitis

81
Q

You are taking a skin scraping for culture of a dermatophyte from a cat. What is the recommended incubate temperature for this specimen?

A

25 C

82
Q

You have diagnosed a dermatophyte infection in a cat. The client asks about the possibility of transfer of the infection to her or her children. You advised her that the “ringworm” in the cat, in regards to possibility of transfer to humans, is:

A

a disease of high danger to exposed individuals

83
Q

The life form of Histoplasma capsulatum in tissue can best be described as:

A

small (3.5 u) budding yeasts

84
Q

Cephalosporins, in regards to use in the patient and action on the bacteria, are:

A

bacteriocidal and time dependent

85
Q

Cephalosporins, in regards to site of action in the bacteria, affects:

A

Cell wall synthesis

86
Q

The most useful treatment for early cases of Pythium insidiosum infection in a horse would be:

A

administration of commercial bacterins

87
Q

This agent used to treat fungi is always given by intravenous injection in the dog and is almost always associated with serious side effects including nephrotoxicity and anemia.

A

amphotericin B

88
Q

This drug is associated with a condition called keratoconjunctivitis sicca in dogs.

A

sulfadiazine

89
Q

This drug must be used with caution in young horses b/c of its propensity to cause potentially debilitating lesions in developing cartilage.

A

enrofloxacin

90
Q

This agent must be used with caution in cats b/c use above 5 mg/kg can cause retinal degeneration.

A

enrofloxacin

91
Q

This macrolide drug used to treat cattle and swine is known for having significant toxicity on accidental injection in humans (cardiac problems and death).

A

tilmicosin

92
Q

This antifungal agent should not be used in cats b/c it may cause serious liver toxicity.

A

ketoconazole

93
Q

This agent should not be used in pregnant queens b/c it may cause teratogenic effects.

A

griseofulvin

94
Q

You have a cat that likes to hang out where the pigeons hang out. This cat is a good candidate to become infected with this agent.

A

Cryptococcus neoformans

95
Q

The term “tuberculated macroconidia” is always used in reference to this agent.

A

Histoplasma capsulatum

96
Q

The term “cigar body” is used as a descriptive term for the tissue phase of this agent.

A

Sporothrix schenckii

97
Q

Blindness in the dog due to acute uveitis is commonly associated with acute infectious with this dimorphic fungus.

A

Blastomyces dermatitidis

98
Q

You have a client who loves to explore caves. He comments about a Missouri cave he is planning to explore that has a high bat population. You would then warn him to be careful b/c of the possibility that he might get sick by coming in contact with a large number of spores from this fungus.

A

Histoplasma capsulatum

99
Q

This monomorphic yeast is known to cause a greasy seborrhea with thickened skin.

A

Malassezia pachydermatis

100
Q

This agent is a common cause of skin disease involving only the dermal layers in horses.

A

Trichophyton equinum

101
Q

Animal: 8 month old Yorkshire-cross pigs in Georgia.
Symptoms: large scaly lesions on sides

Clinical diagnosis: dermatophytosis

A

Microsporum nanum

102
Q

This dimorphic fungi has a propensity to localize in the digestive tract after systemic spread.

A

Histoplasma capsulatum

103
Q

This yeast is noted for the lack of inflammatory response seen in infected tissue when it spreads systemically.

A

Cryptococcus neoformans

104
Q

Disease caused by this agent could properly be called Zygomycosis.

A

Mucor sp.

105
Q

The Domain to which fungi belong.

A

Eukarya

106
Q

This geophilic fungus specifically affects the keratinized skin layers with subsequent disease development in the dog.

A

Microsporum gypseum

107
Q

This dermatophyte is considered to be host-adapted to rodents.

A

Trichophyton mentagrophytes

108
Q

The large spores that are produced by Microsporum canis that are so characteristic that they aid in species identification.

A

Macroconidia

109
Q

The base media usually used to grow fungi.

A

Sabouraud’s Dextrose

110
Q

The periodic-acid-Schiff stain is useful for staining fungi b/c it reacts specifically with this compound in the fungal cell wall.

A

chitin

111
Q

Fungi that are capable of growing in both the mold form and the yeast form.

A

Dimorphic fungus

112
Q

The type of spores that are produced by Candida albicans.

A

blastospores

113
Q

The cell structure type typical of the fungi.

A

eucaryotic cell

114
Q

The mass of hyphae that make up a typical mold colony.

A

mycelium

115
Q

Sexual reproductive (perfect) state of fungi.

A

teleomorph

116
Q

Arthrospores are formed internal in the hair shaft.

A

endothrix

117
Q

A family dog has been diagnosed as having a Coccidioides immitis pneumonia. Knowing the public health significance of this fungus you:

A

Tell the family that the disease is probably not contagious to humans and recommend treatment if prognosis indicates treatment would be successful.

118
Q

These 2 drugs from different families would be most useful in treatment of an acute pneumonia caused by Histoplasma capsulatum in the dog.

A

Amphotericin B,

ketoconazole

119
Q

All of the fungi listed below can be described as “dimorphic fungi” except:
a) Blastomyces dermatitidis

b) Coccidioides immitis
c) Cryptococcus neoformans
d) Histoplasma capsulatum
e) Sporothrix schenckii
f) all of the above are dimorphic fungi

A

c) Cryptococcus neoformans

120
Q

The most useful treatment for early cases of Pythium insidiosum infection in a horse would be:
(2011 test)

A

administration of autogenous bacterins

121
Q

Cephadroxil, in regards to use in the patient and action on the bacteria, are:

A

bacteriocidal and time dependent

122
Q

Cephadroxil, in regards to site of action in the bacteria, affects:

A

cell wall synthesis

123
Q

One of the usual manifestations of the disease “Cryptococcosis” as seen in its usual animal host is symptomatically diagnosed as:

A

nasal granuloma

Bacteriology IP5 (12 decks)

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