Deck 24: Alcaligenes, Bordetella Nonpertussis, Comamonas, and Similar Organisms

Question 1

The organism most frequently associated with various infections in humans is

A)Bordetella.
B)Oligella.
C)Achromobacter.
D)Roseomonas.

Answer 1

C
Among the organisms listed, Achromobacter is the organism most frequently associated with various infections. This organism also has been implicated in outbreaks of nosocomial infections. Other organisms, such as Oligella urethralis, O. ureolytica, and Roseomonas spp., whose reservoirs are unknown, are rarely implicated in human infections and are likely to be of low virulence.

Question 2

Pertussis (whooping cough), an epidemic disease, is a highly contagious, acute infection of the upper respiratory tract caused by

A)Brucella species.
B)Bordetella species.
C)Pasteurella species.
D)Francisella species.

Answer 2

B
Pertussis is a highly contagious, acute infection of the upper respiratory tract caused primarily by Bordetella pertussis and less commonly by B. parapertussis.

Question 3

The mode of transmission of Bordetella bronchiseptica can best be described as

A)person to person contact.
B)exposure to contaminated water.
C)inhalation of contaminated air.
D)close contact with animals.

Answer 3

D
The diversity of the habitats of the organisms in Chapter 27 is reflected in the various ways they are transmitted. Transmission of environmental isolates such as Achromobacter denitrificans frequently involves exposure of debilitated patients to contaminated fluids or medical solutions. In contrast, Bordetella bronchiseptica transmission primarily occurs by close contact with animals.

Question 4

Which statement best describes the habitats of Achromobacter, Alcaligenes, and Bordetella?

A)The habitats are limited to the upper respiratory tract of various mammals.
B)The habitats vary from the soil and water environment to the upper respiratory tract of various mammals.
C)The habitats are limited to the soil and water environment.
D)The habitats are limited to the mucous membranes of humans and animals.

Question 5

Valid susceptibility testing methods are not available for

A)Enterobacteriaceae.
B)Alcaligenes.
C)Pseudomonas.
D)Staphylococcus.

Question 6

The mode of transmission of Achromobacter denitrificans can best be described as

A)person to person contact.
B)exposure to contaminated water.
C)contaminated fluids or medical solutions.
D)close contact with animals.

Question 7

Achromobacter, Alcaligenes, and Bordetella are all

A)MacConkey-positive.
B)oxidase-positive.
C)nonglucose utilizers.
D)All of the above are correct.
E)None of the above are correct.

Question 8

Gram stain morphology, motility, and flagellar placement are important identifying characteristics of

A)Chryseobacterium.
B)Flavobacterium.
C)Pseudomonas.
D)Bordetella.

Question 9

Psychrobacter phenylpyruvicus can be described as

A)oxidase-positive, motile, and rapid urease-positive.
B)indole-positive, nonmotile, and has a fruity odor.
C)resistant to vancomycin and will grow on MacConkey agar and at 42° C.
D)nonmotile and both urea- and phenylalanine deaminase-positive.

Question 10

B.bronchiseptica is

A)oxidase-positive, motile, and rapid urease-positive.
B)indole-positive, nonmotile, and has a fruity odor.
C)resistant to vancomycin and will grow on MacConkey agar and at 42° C.
D)nonmotile and both urea- and phenylalanine deaminase-positive.

Question 11

True or False? The lack of validated in vitro susceptibility testing methods does not allow definitive treatment and testing guidelines to be given for B.parapertussis.

A)True
B)False

Question 12

Myroides is

A)oxidase-positive, motile, and rapid urease-positive.
B)urease-positive and has a fruity odor.
C)resistant to vancomycin and will grow on MacConkey agar and at 42° C.
D)nonmotile and both urea- and phenylalanine deaminase-positive.