Question 1

Sphingomonas spp.can be described as

Accepted Answer

A) oxidase-negative, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
B) oxidase-positive, glucose-oxidizing, gram-negative bacilli that fail to grow on MacConkey agar. 
C) oxidase-positive, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
D) oxidase-positive, non-glucose-utilizing, gram-negative bacilli that do not grow on MacConkey agar. 
A) oxidase-negative, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
B) oxidase-positive, glucose-oxidizing, gram-negative bacilli that fail to grow on MacConkey agar. 
C) oxidase-positive, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
D) oxidase-positive, non-glucose-utilizing, gram-negative bacilli that do not grow on MacConkey agar. B

Question 2

Sphingobacterium spp.can be described as

Accepted Answer

A) oxidase-negative, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
B) oxidase-positive, glucose-oxidizing, gram-negative bacilli that fail to grow on MacConkey agar. 
C) oxidase-positive, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
D) oxidase-positive, non-glucose-utilizing, gram-negative bacilli that do not grow on MacConkey agar. 
A) oxidase-negative, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
B) oxidase-positive, glucose-oxidizing, gram-negative bacilli that fail to grow on MacConkey agar. 
C) oxidase-positive, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
D) oxidase-positive, non-glucose-utilizing, gram-negative bacilli that do not grow on MacConkey agar. B

Question 3

A yellow-pigmented, gram-negative rod on blood agar but not MacConkey that is indole- and urease-negative, oxidase-positive, and positive on wet mount motility testing is most likely

Accepted Answer

A) Treponema. 
B) Leptospira. 
C) Borrelia. 
D) Sphingomonas. 
A) Treponema. 
B) Leptospira. 
C) Borrelia. 
D) Sphingomonas. D

Question 4

Which statement best describes the habitats of Acidovorax, Sphingobacterium, and Sphingomonas?

Accepted Answer

A) The habitats are limited to the upper respiratory tract of various mammals. 
B) The habitats are unknown. 
C) The habitats are limited to the soil and water environment. 
D) The habitats are limited mostly to water sources. 
A) The habitats are limited to the upper respiratory tract of various mammals. 
B) The habitats are unknown. 
C) The habitats are limited to the soil and water environment. 
D) The habitats are limited mostly to water sources.

Question 5

Oxidase-positive, glucose-positive, (oxidatively) gram-negative bacilli that cannot grow on MacConkey agar include

Accepted Answer

A) Pseudomonas. 
B) Vibrio. 
C) Stenotrophomonas. 
D) Sphingomonas. 
A) Pseudomonas. 
B) Vibrio. 
C) Stenotrophomonas. 
D) Sphingomonas.

Question 6

Acidovorax spp.can be described as

Accepted Answer

A) oxidase-negative, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
B) oxidase-positive, glucose-oxidizing, gram-negative bacilli that fail to grow on MacConkey agar. 
C) oxidase-positive, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
D) oxidase-positive, non-glucose-utilizing, gram-negative bacilli that do not grow on MacConkey agar. 
A) oxidase-negative, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
B) oxidase-positive, glucose-oxidizing, gram-negative bacilli that fail to grow on MacConkey agar. 
C) oxidase-positive, glucose-fermenting, gram-negative bacilli that grow on MacConkey agar. 
D) oxidase-positive, non-glucose-utilizing, gram-negative bacilli that do not grow on MacConkey agar.

Exam 26: Sphingomonas Paucimobilis and Similar Organisms

Sphingomonas spp.can be described as

Sphingobacterium spp.can be described as

A yellow-pigmented, gram-negative rod on blood agar but not MacConkey that is indole- and urease-negative, oxidase-positive, and positive on wet mount motility testing is most likely

Which statement best describes the habitats of Acidovorax, Sphingobacterium, and Sphingomonas?

Oxidase-positive, glucose-positive, (oxidatively) gram-negative bacilli that cannot grow on MacConkey agar include

Acidovorax spp.can be described as

Microbial Taxonomy

Bacterial Genetics Metabolism and Structure

Host-Microorganism Interactions

Laboratory Safety

Specimen Management

Role of Microscopy

Traditional Cultivation and Identification

Nucleic Acid-Based Analytic Methods for Microbial Identification and Characterization

Immunochemical Methods Used for Organism Detection

Serologic Diagnosis of Infectious Diseases

Principles of Antimicrobial Action Resistance

Laboratory Methods and Strategies for Antimicrobial Susceptibility Testing

Staphylococcus, Micrococcus, and Similar Organisms

Streptococcus, Enterococcus, and Similar Organisms

Bacillus and Similar Organisms

Listeria, Corynebacterium, and Similar Organisms

Erysipelothirix, Lactobacillus, and Similar Organisms

Nocardia, Streptomyces, Rhodococcus, Oerskovia, and Similar Organisms

Enterobacteriaceae

Acinetobacter, Stenotrophomonas, and Other Organisms

Pseudomonas, Burkholderia, and Similar Organisms

Achromobacter, Rhizobium, Ochrobactrum, and Similar Organisms

Chryseobacterium, Sphingobacterium, and Similar Organisms

Alcaligenes, Bordetella Nonpertussis, Comamonas, and Similar Organisms

Vibrio, Aeromonas, Plesiomonas Shigelloides, and Chromobacterium Violaceum

Moraxella

Eikenella Corrodens and Similar Organisms

Pasteurella and Similar Organisms

Actinobacillus, Kingella, Cardiobacterium, Capnocytophaga, and Similar Organisms

Haemophilus

Bartonella and Afipia

Campylobacter, Arcobacter, and Helicobacter

Legionella

Brucella

Bordetella Pertussis and Bordetella Parapertussis

Francisella

Streptobacillus Moniliformis and Spirillum Minus

Neisseria and Moraxella Catarrhalis

Overview and General Considerations

Laboratory Considerations

Mycobacteria

Obligate Intracellular and Nonculturable Bacterial Agents

Cell Wall-Deficient Bacteria: Mycoplasma and Ureaplasma

The Spirochetes

Laboratory Methods for Diagnosis of Parasitic Infections

Laboratory Methods in Basic Mycology

Laboratory Methods in Basic Virology

Bloodstream Infections

Infections of the Lower Respiratory Tract

Upper Respiratory Tract Infections and Other Infections of the Oral Cavity and Neck

Meningitis and Other Infections of the Central Nervous Systems

Infections of the Eyes, Ears, and Sinuses

Infections of the Urinary Tract

Genital Tract Infections

Gastrointestinal Tract Infections

Skin, Soft Tissue, and Wound Infections

Normally Sterile Body Fluids, Bone and Bone Marrow, and Solid Tissues

Laboratory Physical Design, Management, and Organization

Quality in the Clinical Microbiology Laboratory

Infection Control

Sentinel Laboratory Response to Bioterrorism New

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