Question 1

The wet mount and Gram stain of vaginal secretions from a patient who has bacterial vaginosis caused by Gardnerella vaginalis will reveal

Accepted Answer

A) large, squamous epithelial cells with numerous attached pleomorphic gram-variable or gram-negative coccobacilli and rods. 
B) large numbers of large gram-positive rods. 
C) large numbers of polymorphonuclear leukocytes. 
D) All of the above are correct. 
A) large, squamous epithelial cells with numerous attached pleomorphic gram-variable or gram-negative coccobacilli and rods. 
B) large numbers of large gram-positive rods. 
C) large numbers of polymorphonuclear leukocytes. 
D) All of the above are correct. A

Question 2

Erysipelothrix can be described as

Accepted Answer

A) catalase-negative 
B) not acid-fast 
C) not branching 
D) non-spore-forming 
E) All of the above are correct. 
A) catalase-negative 
B) not acid-fast 
C) not branching 
D) non-spore-forming 
E) All of the above are correct. E

Question 3

A catalase-negative, non-spore-forming, non-branching, gram-positive rod that produces hydrogen sulfide when inoculated into TSI agar is most likely

Accepted Answer

A) Corynebacterium 
B) Bacillus 
C) Actinomyces 
D) Erysipelothrix 
A) Corynebacterium 
B) Bacillus 
C) Actinomyces 
D) Erysipelothrix D

Question 4

Large, squamous epithelial cells with numerous attached pleomorphic gram-variable or gram-negative coccobacilli and rods are typical elements of a wet mount and Gram stain of vaginal secretions from a patient who has

Accepted Answer

A) bacterial vaginosis caused by Gardnerella vaginalis. 
B) large numbers of large gram-positive rods. 
C) large numbers of polymorphonuclear leukocytes. 
D) All of the above are correct. 
A) bacterial vaginosis caused by Gardnerella vaginalis. 
B) large numbers of large gram-positive rods. 
C) large numbers of polymorphonuclear leukocytes. 
D) All of the above are correct.

Question 5

A catalase-negative, non-spore-forming, gram-positive rod that is not acid-fast could possibly belong to which group of bacteria?

Accepted Answer

A) Corynebacterium 
B) Bacillus 
C) Actinomyces 
D) Erysipelothrix 
A) Corynebacterium 
B) Bacillus 
C) Actinomyces 
D) Erysipelothrix

Question 6

Large numbers of large gram-positive bacilli are typical elements of a wet mount and Gram stain of vaginal secretions from a patient who has

Accepted Answer

A) bacterial vaginosis caused by Gardnerella vaginalis. 
B) no apparent vaginal infection. 
C) bacterial vaginosis caused by Lactobacillus sp. 
D) gonorrhea 
A) bacterial vaginosis caused by Gardnerella vaginalis. 
B) no apparent vaginal infection. 
C) bacterial vaginosis caused by Lactobacillus sp. 
D) gonorrhea

Exam 17: Erysipelothirix, Lactobacillus, and Similar Organisms

The wet mount and Gram stain of vaginal secretions from a patient who has bacterial vaginosis caused by Gardnerella vaginalis will reveal

Erysipelothrix can be described as

A catalase-negative, non-spore-forming, non-branching, gram-positive rod that produces hydrogen sulfide when inoculated into TSI agar is most likely

Large, squamous epithelial cells with numerous attached pleomorphic gram-variable or gram-negative coccobacilli and rods are typical elements of a wet mount and Gram stain of vaginal secretions from a patient who has

A catalase-negative, non-spore-forming, gram-positive rod that is not acid-fast could possibly belong to which group of bacteria?

Large numbers of large gram-positive bacilli are typical elements of a wet mount and Gram stain of vaginal secretions from a patient who has

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