Question 1

To which category do most Neisseria spp. belong?

Accepted Answer

A)  Facultatively anaerobic 
B)  Capnophilic 
C)  Anaerobic 
D)  Facultatively aerobic 
A)  Facultatively anaerobic 
B)  Capnophilic 
C)  Anaerobic 
D)  Facultatively aerobic B

Question 2

How is Neisseria meningitidis most commonly spread?

Accepted Answer

A)  Contaminated food 
B)  Respiratory droplets 
C)  Arthropods 
D)  Blood-borne 
A)  Contaminated food 
B)  Respiratory droplets 
C)  Arthropods 
D)  Blood-borne B

Question 3

An oxidase-positive, gram-negative diplococcus produces bubbles in 30% hydrogen peroxide. What is the organism?

Accepted Answer

A)  Neisseria meningitidis 
B)  N. sicca 
C)  N. gonorrhoeae 
D)  N. lactamica 
A)  Neisseria meningitidis 
B)  N. sicca 
C)  N. gonorrhoeae 
D)  N. lactamica C

Question 4

Under what conditions should inoculated plates for Neisseria gonorrhoeae culture be incubated?

Accepted Answer

A)  35° C and 3% to 5% carbon dioxide 
B)  25° C and room air 
C)  35° C and room air 
D)  25° C and 3% to 5% carbon dioxide 
A)  35° C and 3% to 5% carbon dioxide 
B)  25° C and room air 
C)  35° C and room air 
D)  25° C and 3% to 5% carbon dioxide

Question 5

How are Neisseria gonorrhoeae infections transmitted?

Accepted Answer

A)  Sexual contact 
B)  Contaminated food 
C)  Respiratory droplet 
D)  Spores 
A)  Sexual contact 
B)  Contaminated food 
C)  Respiratory droplet 
D)  Spores

Question 6

What is a major cause of pelvic inflammatory disease in women?

Accepted Answer

A)  Untreated gonococcal cervicitis 
B)  Untreated meningococcal cystitis 
C)  Treated gonococcal cervicitis 
D)  Treated meningococcal cystitis 
A)  Untreated gonococcal cervicitis 
B)  Untreated meningococcal cystitis 
C)  Treated gonococcal cervicitis 
D)  Treated meningococcal cystitis

Question 7

In a carbohydrate substrate test, a gram-negative diplococcus produces acid only from glucose and maltose. You should suspect

Accepted Answer

A)  Neisseria gonorrhoeae. 
B)  N. sicca. 
C)  N. lactamica. 
D)  N. meningitidis. 
A)  Neisseria gonorrhoeae. 
B)  N. sicca. 
C)  N. lactamica. 
D)  N. meningitidis.

Question 8

What organism is a commensal of the upper respiratory tract and has become an opportunistic pathogen causing upper and lower respiratory tract infections in otherwise healthy children and the older adults?

Accepted Answer

A)  Moraxella catarrhalis 
B)  Neisseria lactamica 
C)  N. sicca 
D)  N. gonorrhoeae 
A)  Moraxella catarrhalis 
B)  Neisseria lactamica 
C)  N. sicca 
D)  N. gonorrhoeae

Question 9

The virulence factors for Neisseria spp. include all the following, except

Accepted Answer

A)  capsule. 
B)  endotoxin. 
C)  pili. 
D)  exotoxin. 
A)  capsule. 
B)  endotoxin. 
C)  pili. 
D)  exotoxin.

Question 10

A microbiologist reading genital cultures on a Martin-Lewis plate should look for what colony morphology if Neisseria gonorrhoeae is suspected?

Accepted Answer

A)  Large, white, creamy 
B)  Small, tan, translucent 
C)  Small, white, transparent 
D)  Small, rough, transparent 
A)  Large, white, creamy 
B)  Small, tan, translucent 
C)  Small, white, transparent 
D)  Small, rough, transparent

Question 11

If a male is infected with Neisseria gonorrhoeae, what would be the results of a Gram stain of purulent urethral discharge reveal?

Accepted Answer

A)  Many polymorphonuclear white blood cells, some with gram-negative intracellular diplococci, and gram-negative diplococci 
B)  Many mononuclear white blood cells and gram-negative cocci 
C)  Few white blood cells, many red blood cells and gram-negative rods 
D)  Many polymorphonuclear white blood cells, some gram-negative intracellular rods, and gram-negative rods 
A)  Many polymorphonuclear white blood cells, some with gram-negative intracellular diplococci, and gram-negative diplococci 
B)  Many mononuclear white blood cells and gram-negative cocci 
C)  Few white blood cells, many red blood cells and gram-negative rods 
D)  Many polymorphonuclear white blood cells, some gram-negative intracellular rods, and gram-negative rods

Question 12

What does blood-borne dissemination of Neisseria gonorrhoeae usually result in?

Accepted Answer

A)  Pharyngitis 
B)  Meningitis 
C)  Purulent arthritis 
D)  Pelvic inflammatory disease 
A)  Pharyngitis 
B)  Meningitis 
C)  Purulent arthritis 
D)  Pelvic inflammatory disease

Question 13

What is the specimen of choice in males for genital infections?

Accepted Answer

A)  Urine 
B)  Throat culture 
C)  Purulent urethral discharge 
D)  Prostatic fluid 
A)  Urine 
B)  Throat culture 
C)  Purulent urethral discharge 
D)  Prostatic fluid

Question 14

A microbiologist does a Gram stain on a CSF. She sees intracellular and extracellular gram-negative diplococci. What is the most likely organism?

Accepted Answer

A)  Neisseria gonorrhoeae 
B)  N. meningitidis 
C)  N. lactamica 
D)  N. sicca 
A)  Neisseria gonorrhoeae 
B)  N. meningitidis 
C)  N. lactamica 
D)  N. sicca

Question 15

How should a specimen for Neisseria gonorrhoeae culture be transported to the laboratory?

Accepted Answer

A)  Placed in the paper swab cover and transported to the laboratory at the end of the day 
B)  Placed in a bacterial transport and transported to the laboratory at the end of the day 
C)  Placed in a tube of broth and transported to the laboratory immediately 
D)  Placed in Amies with charcoal transport system and transported to the laboratory immediately 
A)  Placed in the paper swab cover and transported to the laboratory at the end of the day 
B)  Placed in a bacterial transport and transported to the laboratory at the end of the day 
C)  Placed in a tube of broth and transported to the laboratory immediately 
D)  Placed in Amies with charcoal transport system and transported to the laboratory immediately

Question 16

What antimicrobial agents are recommended for treatment of uncomplicated gonococcal infections?

Accepted Answer

A)  Cephalosporins 
B)  Penicillins and macrolides 
C)  Aminoglycosides and fluoroquinolones 
D)  Cephalosporins and penicillins 
A)  Cephalosporins 
B)  Penicillins and macrolides 
C)  Aminoglycosides and fluoroquinolones 
D)  Cephalosporins and penicillins

Question 17

Gonococcal infections occur primarily in all the following sites, except

Accepted Answer

A)  urethra. 
B)  endocervix. 
C)  uterus. 
D)  anal canal. 
A)  urethra. 
B)  endocervix. 
C)  uterus. 
D)  anal canal.

Question 18

What type of swab should be used for a Neisseria gonorrhoeae culture?

Accepted Answer

A)  Cotton 
B)  Calcium alginate 
C)  Dacron 
D)  Flax 
A)  Cotton 
B)  Calcium alginate 
C)  Dacron 
D)  Flax

Question 19

Nonpathogenic commensal Neisseria spp. include all the following, except

Accepted Answer

A)  Neisseria lactamica. 
B)  N. meningitidis. 
C)  N. mucosa. 
D)  N. polysaccharea. 
A)  Neisseria lactamica. 
B)  N. meningitidis. 
C)  N. mucosa. 
D)  N. polysaccharea.

Question 20

What disease is most commonly associated with newborns passing through a birth canal infected with Neisseria gonorrhoeae?

Accepted Answer

A)  Meningitis 
B)  Ophthalmia neonatorum 
C)  Ophthalmitis 
D)  Gastritis 
A)  Meningitis 
B)  Ophthalmia neonatorum 
C)  Ophthalmitis 
D)  Gastritis

Exam 17: Neisseria Species and Moraxella Catarrhalis

To which category do most Neisseria spp. belong?

How is Neisseria meningitidis most commonly spread?

An oxidase-positive, gram-negative diplococcus produces bubbles in 30% hydrogen peroxide. What is the organism?

Under what conditions should inoculated plates for Neisseria gonorrhoeae culture be incubated?

How are Neisseria gonorrhoeae infections transmitted?

What is a major cause of pelvic inflammatory disease in women?

In a carbohydrate substrate test, a gram-negative diplococcus produces acid only from glucose and maltose. You should suspect

What organism is a commensal of the upper respiratory tract and has become an opportunistic pathogen causing upper and lower respiratory tract infections in otherwise healthy children and the older adults?

The virulence factors for Neisseria spp. include all the following, except

A microbiologist reading genital cultures on a Martin-Lewis plate should look for what colony morphology if Neisseria gonorrhoeae is suspected?

If a male is infected with Neisseria gonorrhoeae, what would be the results of a Gram stain of purulent urethral discharge reveal?

What does blood-borne dissemination of Neisseria gonorrhoeae usually result in?

What is the specimen of choice in males for genital infections?

A microbiologist does a Gram stain on a CSF. She sees intracellular and extracellular gram-negative diplococci. What is the most likely organism?

How should a specimen for Neisseria gonorrhoeae culture be transported to the laboratory?

What antimicrobial agents are recommended for treatment of uncomplicated gonococcal infections?

Gonococcal infections occur primarily in all the following sites, except

What type of swab should be used for a Neisseria gonorrhoeae culture?

Nonpathogenic commensal Neisseria spp. include all the following, except

What disease is most commonly associated with newborns passing through a birth canal infected with Neisseria gonorrhoeae?

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

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

Enterobacteriaceae

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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