Exam 19: Enterobacteriaceae

You have isolated a bacterium from a stool culture that produces clear colonies on sorbitol MacConkey (SMAC) agar. Which of the following would be the most appropriate test to perform next?

(Multiple Choice)

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Question 21

All of the following are characteristics of Shigella spp., except

(Multiple Choice)

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Question 22

Why can direct microscopy not be used to provide a presumptive identification of the enteric bacteria?

(Multiple Choice)

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Question 23

The Escherichia coli serotype O157:H7 is associated with all the following, except

(Multiple Choice)

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Question 24

Escherichia coli strains have all the following properties, except

(Multiple Choice)

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Question 25

What substance produced by the Salmonella spp., which cause gastroenteritis, has been implicated as a significant virulence factor?

(Multiple Choice)

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Question 26

What enteric organism may produce a blue-violet pigment on non-blood-containing media?

(Multiple Choice)

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Question 27

What organism possesses the Vi antigen?

(Multiple Choice)

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Question 28

What genus has the following characteristics: urea negative, positive for lysine decarboxylase, hydrogen sulfide, and indole, and does not grow on Simmon's citrate?

(Multiple Choice)

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Question 29

Which of the following agars is not selective for Enterobacteriaceae?

(Multiple Choice)

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Question 30

The most important cause of UTIs is

(Multiple Choice)

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Question 31

A DNase-positive member of the family Enterobacteriaceae is suggestive of

(Multiple Choice)

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Question 32

All the following are biochemical features of Salmonella, except

(Multiple Choice)

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Question 33

Showing 21 - 33 of 33

Exam 19: Enterobacteriaceae

You have isolated a bacterium from a stool culture that produces clear colonies on sorbitol MacConkey (SMAC) agar. Which of the following would be the most appropriate test to perform next?

All of the following are characteristics of Shigella spp., except

Why can direct microscopy not be used to provide a presumptive identification of the enteric bacteria?

The Escherichia coli serotype O157:H7 is associated with all the following, except

Escherichia coli strains have all the following properties, except

What substance produced by the Salmonella spp., which cause gastroenteritis, has been implicated as a significant virulence factor?

What enteric organism may produce a blue-violet pigment on non-blood-containing media?

What organism possesses the Vi antigen?

What genus has the following characteristics: urea negative, positive for lysine decarboxylase, hydrogen sulfide, and indole, and does not grow on Simmon's citrate?

Which of the following agars is not selective for Enterobacteriaceae?

The most important cause of UTIs is

A DNase-positive member of the family Enterobacteriaceae is suggestive of

All the following are biochemical features of Salmonella, except

Bacterial Cell Structure, Physiology, Metabolism, and Genetics

Hostparasite Interaction

The Laboratory Role in Infection Control

Control of Microorganisms

Performance Improvement in the Microbiology Laboratory

Specimen Collection and Processing

Microscopic Examination of Materials From Infected Sites

Use of Colony Morphology for the Presumptive Identification of Microorganisms

Biochemical Identification of Gram-Negative Bacteria

Immunodiagnosis of Infectious Diseases

Applications of Molecular Diagnostics

Antimicrobial Agent Mechanisms of Action and Resistance Mechanisms

Antimicrobial Susceptibility Testing

Staphylococci

Streptococcus, Enterococcus, and Other Catalase-Negative, Gram-Positive Cocci

Aerobic Gram-Positive Bacilli

Neisseria Species and Moraxella Catarrhalis

Haemophilus, Hacek, Legionella, and Other Fastidious Gram-Negative Bacilli

Vibrio, Aeromonas, and Campylobacter Species

Nonfermenting and Miscellaneous Gram-Negative Bacilli

Anaerobes of Clinical Importance

The Spirochetes

Chlamydia, Rickettsia, and Similar Organisms

Mycoplasma and Ureaplasma

Mycobacterium Tuberculosis and Nontuberculous Mycobacteria

Medically Significant Fungi

Diagnostic Parasitology

Clinical Virology

Agents of Bioterror and Forensic Microbiology

Biofilms: Architects of Disease

Upper and Lower Respiratory Tract Infections

Skin and Soft Tissue Infections

Gastrointestinal Infections and Food Poisoning

Infections of the Central Nervous System

Bacteremia and Sepsis

Urinary Tract Infections

Genital Infections and Sexually Transmitted Infections

Infections in Special Populations

Zoonotic Diseases

Ocular Infections

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