micro quiz set chp 19 20 21 Flashcards

1
Q

The most common STD in the US is caused by:
a. Candida albicans
b. C. trachomatis
c. N. gonorrhoeae
d. Trichomonas vaginalis

A

B. C. trachomatis

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2
Q

______ is the most common cause of pneumonia in the world
a. C. pneumoniae
b. L. pneumophila
c. M. pneumoniae
d. S. pneumoniae

A

D. S. pneumoniae

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3
Q

Gas gangrene is always caused by
a. Bacillus anthracis
b. Clostridium spp
c. S. aureus
d. S. pyogenes

A

B. Clostridium spp.

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4
Q

The bacterial species most frequently associated with necrotizing fasciitis is
a. Francisella tularensis
b. S. aureus
c. S. pneumoniae
d. S. pyogenes

A

D. S. pyogenes

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5
Q

Which of the following diseases may be caused by C. trachomatis
a. inclusion conjunctivitis
b. nongonococcal urethritis
c. trachoma
d. all of the above

A

D. all of the above

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6
Q

Which of the following organisms is the most common cause of urethritis?
a. C. albicans
b. C. trachomatis
c. N. gonorrhoeae
d. T. vaginalis

A

B. C. trachomatis

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7
Q

Which of the following organisms is the most common cause of cystitis?
a. C. trachomatis
b. E. coli
c. N. gonorrhoeae
d. T. vaginalis

A

B. E. coli

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8
Q

Which of the following is the most common arthropod-borne disease in the US?
a. Lyme disease
b. Plague
c. Spotted fever rickettsiosis
d. tularemia

A

A. Lyme disease

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9
Q

Which of the following diseases is not caused by a spirochete?
a. Lyme disease
b. plague
c. relapsing fever
d. syphilis

A

D. Plague

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10
Q

Which of the following associations is incorrect?
a. Lyme disease and tick
b. plague and rat flea
c. spotted fever rickettsiosis and tick
d. typhoid fever and mosquito

A

D. typhoid fever and mosquito

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11
Q

Which of the following diseases is caused by an encapsulated yeast?
a. coccidioidomycosis
b. cryptococcosis
c. histoplasmosis
d. Pneumocystis pneumonia

A

B. Cryptococcosis

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12
Q

Which of the following diseases is not caused by a dimorphic fungus?
a. coccidioidomycosis
b. cryptococcosis
c. histoplasmosis
d. sporotrichosis

A

B. Cryptococcosis

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13
Q

Which of the following diseases is a synonym for ringworm infection of the nails?
a. tinea barbae
b. tinea cruris
c. tinea nigra
d. tinea unguium

A

D. tinea unguium

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14
Q

Which of the following is the most common systemic fungal disease in the US?
a. cryptococcosis
b. coccidioidomycosis
c. histoplasmosis
d. Pneumocystis pneumonia

A

C. histoplasmosis

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15
Q

One should associate the india ink preparation with diagnosis of
a. cryptococcal meningitis
b. thrush
c. tinea pedis
d. yeast vaginitis

A

A. cryptococcal meningitis

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16
Q

Bread moulds are most commonly associated with
a. thrush
b. tinea versicolor
c. vaginitis
d. zygomycosis

A

D. zygomycosis

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17
Q

Which of the following is the fungus most often isolated from human clinical specimens?
a. C. albicans
b. C. neoformans
c. H. capsulatum
d. Pneumocystis jirovecii

A

A. C. albicans

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18
Q

Which of the following methods is the quickest and most common way to diagnose yeast vaginitis?
a. culture
b. India ink preparation
c. KOH preparation
d. saline wet mount

A

D. saline wet mount

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19
Q

In the US, C. albicans causes approx _______ of the cases of vaginitis
a. 10%
b. 25%
c. 33%
d. 50 %

A

C. 33%

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20
Q

Tinea cruris is a ringworm infection of
a. feet
b. groin area
c. nails
d. palms of the hands

A

B. groin area

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21
Q

Humans develop malaria after the injection of Plasmodium _______ into the bloodstream by an infected female Anopheles mosquito when she takes a blood meal.
a. male and female gametocytes
b. schizonts
c. sporozoites
d. trophozoites

A

C. sporozoites

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22
Q

These Plasmodium life cycle stages must be ingested by a female Anopheles mosquito for the Plasmodium life cycle to continue in the mosquito.
a. male and female gametocytes
b. schizonts
c. sporozoites
c. trophozoites

A

A. male and female gametocytes

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23
Q

Which of the following protozoal diseases is not transmitted via an arthropod vector?
a. African trypanosomiasis
b. American trypanosomiasis
c. babesiosis
d. giardiasis

A

D. giardiasis

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24
Q

Which of the following protozoal diseases is least likely to be transmitted via blood transfusion?
a. American trypanosomiasis
b. babesiosis
c. malaria
d. trichomoniasis

A

D. trichomoniasis

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25
Which of the following protozoal diseases is least likely to be transmitted via an infected food handler who fails to wash his or her hands after using the bathroom? a. amebiasis b. cryptosporidiosis c. giardiasis d. toxoplasmosis
D. toxoplasmosis
26
You are visiting a friend whose parents raise pigs. Which of the following diseases are you most likely to acquire by drinking well water at their farm? a. amebiasis b. balantidiasis c. cryptosporidiosis d. giardiasis
B. balantidiasis
27
You are working on a cattle ranch. Which of the following diseases are you most apt to acquire as you perform your duties at the ranch? a. amebiasis b. balantidiasis c. cryptosporidiosis d. giardiasis
C. cryptosporidiosis
28
Which of the following protozoal diseases are you most likely to acquire by eating a rare hamburger? a. amebiasis b. balantidiasis c. giardiasis d. toxoplasmosis
D. toxoplasmosis
29
Which of the following associations is incorrect? a. African trypanosomiasis and tsetse fly b. amebiasis and fecally contaminated water c. Chagas disease and mosquito d. toxoplasmosis and cats
C. Chagas disease and mosquito
30
Which of the following is an example of an infectious disease that is caused by a facultative parasite? a. African trypanosomiasis b. giardiasis c. malaria d. PAM
D. PAM
31
_________ is a common cause of subacute bacterial endocarditis (SBE), and a less common cause of cystitis
Staphylococcus epidermidis
32
Certain strains of _________ are the so-called flesh-eating bacteria.
Streptococcus pyogenes
33
_________ is a common cause of bacterial pneumonia, meningitis, and otitis media
Streptococcus pneumoniae
34
___________ is the most common cause of toxic shock syndrome
Staphylococcus aureus
35
____________ is on of the most common causes of neonatal meningitis
Streptococcus agalactiae
36
Borrelia burgdorferi
Lyme Disease
37
Treponema pallidum
Syphilis
38
Clostridium perfringens
Gas gangrene
39
Yersinia pestis
Plagues
40
Bordetella pertussis
Whooping cough
41
Staphylococcus aureus is a
Gram-positive coccus
42
Which of the following bacterial diseases is not transmitted by a tick? a. lyme disease b. spotted fever rickettsiosis c. plague d. tularemia
C. Plague
43
Which of the following diseases is not caused by an obligate intracellular pathogen? a. chlamydial urethritis b. human monocytic ehrlichiosis c. spotted fever rickettsiosis d. typhoid fever
D. Typhoid fever
44
Which of the following bacteria is the most common cause of antibiotic-associated diarrhea? a. Clostridium difficile b. Escherichia coli c. Salmonella enteritidis d. Shigella sonnei
A. Clostridium difficile
45
Trachoma (the leading cause of blindness in the world) is caused by a _________ species. a. Chlamydia b. Haemophilus c. Neisseria d. Rickettsia
A. Chlamydia
46
Which of the following bacteria is not a common cause of neonatal meningitis? a. Escherichia coli b. Listeria monocytogenes c. Neisseria meningitidis d.. Streptococcus agalactiae
C. Neisseria meningitidis
47
Which of the following bacterial diseases is not caused by an anaerobe? a. Botulism b. Gas gangrene c. Tetanus d. Tularemia
D. Tularemia
48
Which of the following bacterial diseases is transmitted by a louse? a. Epidemic typhus fever b. Lyme disease c. Plague d. Spotted fever rickettsiosis
A. Epidemic typhus fever
49
Which of the following diseases is not caused by a spore-forming bacterium? a. Anthrax b. Diphtheria c. Gas gangrene d. Tetanus
B. Diphtheria
50
The etiologic agent of which of the following bacterial diseases cannot be grown on artificial culture medium? a. Gonorrhea b. Leprosy c. Plague d. Salmonellosis
B. Leprosy
51
Which of the following bacteria is associated with gastric and duodenal ulcers? a. Campylobacter pylori b. Helicobacter pylori c. Salmonella entertidis d. Shigella sonnei
D. Helicobacter pylori
52
T/F Tuberculosis and Hansen disease (Leprosy) are caused by Mycoplasma species
False Tuberculosis and Leprosy are caused by Mycobacterium species
53
It is possible for scarlet fever and toxic shock syndrome to be caused by the same pathogen
True
54
The most common cause of gas gangrene also causes a type of food poisoning
True
55
Diseases caused by Mycobacterium species are referred to as mycoses
False Diseases caused by Mycobacterium spp. are referred to as mycobacterial diseases; diseases caused by fungi are referred to as mycoses
56
Botulism, gas gangrene, and tetanus are all caused by Clostridium spp.
True
57
Gangrene is always caused by a bacterium
False There are many different causes of gangrene, but Gas gangrene is always caused by a Clostridium spp.
58
Trachoma, spotted fever rickettsiosis, and erhlichiosis are all caused by obligate intracellular pathogens
True
59
a-Hemolytic streptococci of oral origin and Staphylococcus epidermidis are the common causes of SBE
True
60
Haemophilus influenzae is the most common cause of influenza
influenza is caused by influenza viruses
61
Meningitis could be caused by a virus, a bacterium, a fungus, or a protozoan
True
62
A ringworm infection of the scalp, eyebrow and eyelashes
Tinea capitis
63
An infection of the palms of the hands and , less commonly, the neck and feet caused by Hortaea werneckii
Tinea nigra
64
An infection of scalp hair and, less commonly, eyebrows and eyelashes caused by Piedraia hortae
Black piedra
65
An infection of moustache, beard, and pubic and axilla hair, usually caused by Trichosporon beigelii
White piedra
66
A ringworm infection of the soles and between toes
Tinea pedis
67
Valley fever is another name for cryptococcosis
False Valley fever is another name for coccidioidomycosis
68
The yeast form of Histoplasma capsulatum is quite distinctive because of its large capsule
False The yeast form of H. capsulatum is not encapsulated; Cryptococcus neoformans is an encapsulated yeast
69
Both histoplasmosis and cryptococcosis may be acquired by inhalation of dried bat droppings (guano)
True
70
Moulds in the genus Mucor are commonly referred to as bread moulds
True
71
If a patient is infected with a dimorphic fungus, it is likely that fungal hyphae would be seen in the infected tissues
False A patient infected with a dimorphic fungus would have yeasts in their infected tissues
72
Pneumocystis pneumonia is a common contributory cause of death in AIDS patients
True
73
Tinea versicolor is caused by a yeast named Malassezia furfur
False Tinea versicolor is caused by a mould name Malassezia furfur
74
Mycetomas are respiratory infections
False Mycetomas are chronic granulomatous infections that usually involve the feet or hands
75
When grown at room temperature, Coccidioides immitis produces yeast colonies
False Coccidioides immitis is a dimorphic fungus; it produces mould colonies when grown at room temperature
76
Histoplasmosis is the most common systemic fungal infection in AIDS patients
True
77
African trypanosomiasis, American trypanosomiasis, giardiasis, and trichomoniasis are caused by protozoa in the category of protozoa known as ___________
Flagellates
78
Protozoa in the category of protozoa known as ______ move by means of pseudopodia
Amebas
79
Cryptosporidiosis, malaria, and toxoplasmosis are caused by protozoa in the category of protozoa known as _________
Sporozoa
80
In the category of protozoa known as ___________, only one protozoan causes human disease
Ciliates
81
A disease known as PAM is caused by a protozoan in the category of protozoa known as______________
Amebas
82
In the malarial parasite's life cycle, humans become infected when a female Anopheles mosquito injects ________ while taking a blood meal
Sporozoites
83
In the malarial parasite's life cycle, female Anopheles mosquitoes become infected when they ingest male and female _________ (at least one of each) while taking a blood meal.
Gametocytes
84
In the malarial parasite's life cycle, _________ are released from infected liver cells
Merozoites
85
In the malarial parasite's life cycle, merozoites initially mature into _______ within red blood cells
trophozoites
86
In the malarial parasite's life cycle ________ are produced within female Anopheles mosquitoes
Sporozoites
87
In a parasite's life cycle, the definitive host harbors the adult or sexual stage of the parasite or the sexual phase of the life cycle
True
88
The amebae that cause amebic keratitis and PAM are good examples of obligate parasites
False They are good examples of facultative parasites
89
In the malarial parasite's life cycle, humans serve as definitive hosts
False In the malarial parasite's life cycle, humans serve as intermediate hosts and mosquitoes serve as definitive hosts
90
When causing infections, parasitic protozoa and helminths are endoparasites
True
91
Scabies is caused by and insect
Scabies is caused by and arachnid
92
In a parasite's life cycle, it is possible for a particular arthropod to serve as both a host and biologic vector.
True
93
It is possible to acquire cryptosporidiosis, cyclosporiasis, and toxoplasmosis by ingesting oocysts
True
94
Trichomonas vaginalis cannot survive very long outside of the human body because it has no cyst form
True
95
Toxoplasmosis could be acquired by eating raw or rare meat
True
96
African trypanosomiasis and American trypanosomiasis are transmitted by the same type of arthropod vector
False African trypanosomiasis is transmitted by a tsetse fly American trypanosomiasis is transmitted by a reduviid bug