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MMSC 428 FINAL EXAM newest / QUESTIONS
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An isolate of Neisseria recovered from a throat culture demonstrates utilization of glucose, maltose, and lactose.What is the identification? - ----Answers---Neisseria lactamica
Sorbitol MacConkey agar (SMAC) is a selective and differential culture media used to detect which organism? - ----Answers- --E. coli O157
Which organism is the causative agent of Granuloma inguinale? - ----Answers---Klebsiella granulomatis
Which letter is used to designate the flagellar antigen found on members of the Enterobacterales? - ----Answers---H
Which Shigella species is ornithine decarboxylase positive and the most common species in the United States? - ---- Answers---S. sonnei
Which organism demonstrates swarming motility on agar plates? - ----Answers---Proteus vulgaris
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Which organism is the causative agent of Plague? - ---- Answers---Yersinia pestis
T/F The Aerotolerance test, to determine whether an organism is an anaerobe or not, can be performed with primary isolation media or with subcultured isolates. - ----Answers---true
Which of the following is the most common cause of hospital- acquired (nosocomial) diarrhea? - ----Answers---C. difficle
Anaerobic culture from a lung abscess collected via needle and syringe yields heavy growth on CDC anaerobic blood agar
of thin, fusiform Gram-negative bacilli. You should suspect: - -
---Answers---Fusobacterium nucleatum
The most common causative agent of Lemierre's syndrome is:
- ----Answers---Fusobacterium necrophorum
Which organism is most commonly associated with gas gangrene (myonecrosis)? - ----Answers---Clostridium perfringens
The most optimal anaerobic culture media setup should
include CDC anaerobic blood agar, PEA, BBE, and: - ----
Answers---LKV
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T/F Formed stool specimens submitted for Clostridioides difficile testing should be rejected by the laboratory. - ---- Answers---true
All of the following are acceptable methods to create anaerobic environments for anaerobic culture incubation,
except: - ----Answers---ziploc bag
Which organism causes "lumpy jaw" and produces sulfur granules? - ----Answers---Actinomyces israelii
A 50 year-old woman comes to the emergency department with severe back spasms and intermittent bouts of trismus.She reports previously cutting her hand on a rusty nail in her shed when gathering her gardening supplies. Which organism should you suspect? - ----Answers---Clostridium tetani
Which of the following specimens would be unsuitable for anaerobic culture? - ----Answers---sputum
Colonies of the Bacteroides fragilis group appear black on BBE
agar due to: - ----Answers---esculin hydrolysis
Which organism will fluoresce under long-wave UV light? - --- -Answers---Porphyromonas asaccharolytica
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