Question 1

The expected outcome of an oxidase test performed to identify Neisseria menigitidis is

Accepted Answer

A)  the amplification of the oxi gene as detected on an agarose gel.
B)  cells colored black when stained and viewed under the microscope.
C)  the appearance of bubbles when cells are mixed with hydrogen peroxide.
D)  a zone of clearing surrounding colonies on chocolate agar.
E)  a color change of a colony from tan to black when oxidase reagent is added.F) None of the above
G) A) and B)

Question 2

Botox injections contain botulinum toxin.

Accepted Answer

A) True 
 B)False

Question 3

Treatment of an animal bite for possible rabies includes

Accepted Answer

A)  debridement.
B)  washing the bite with soap or detergent.
C)  infusing the wound with human rabies immune globulin (HRIG) .
D)  postexposure vaccination.
E)  All of the choices are correct.F) A) and D)
G) C) and D)

Question 4

Which of the following is caused by Haemophilus influenzae?

Accepted Answer

A)   Pharyngitis
B)   Tetanus
C)   Kuru
D)   Influenza (flu) 
E)   Bacterial meningitisF) A) and B)
G) A) and C)

Question 5

What organism is the main reservoir and host for Toxoplasma gondii?

Accepted Answer

A)  Mouse
B)  Mosquito
C)  Cat
D)  Raccoon
E)  DogF) C) and D)
G) A) and B)

Question 6

Meningococcemia is

Accepted Answer

A)   best treated with penicillin G.
B)   associated with vascular collapse, hemorrhage, and petechiae.
C)   started from a nasopharyngeal infection.
D)   caused by a gram-negative diplococcus.
E)   All of the choices are correct.F) D) and E)
G) A) and B)

Question 7

Although many viruses can cause meningitis, the most common viral cause is ______.

Accepted Answer

A)  cytomegalovirus
B)  enterovirus
C)  arenavirus
D)  herpes simplex
E)  arbovirusF) D) and E)
G) A) and D)

Question 8

Encephalitis is most commonly caused by a ______.

Accepted Answer

A)  bacterium
B)  protozoan
C)  virus
D)  helminthE) A) and C)
F) A) and B)

Question 9

What is the likelihood that a patient infected by West Nile virus will develop West Nile encephalitis?

Accepted Answer

A)  Less than 1%
B)  Between 1% and 10%
C)  Between 10% and 15%
D)  Greater than 20%
E)  Greater than 50%F) B) and D)
G) D) and E)

Question 10

Production of a neurotoxin that binds to target sites on spinal cord neurons responsible for inhibiting skeletal muscle contraction is a characteristic of ______.

Accepted Answer

A)  Clostridium tetani
B)  Clostridium botulinum
C)  Clostridium difficile
D)  Clostridium perfringensE) B) and C)
F) None of the above

Question 11

Which is the exotoxin of botulism?

Accepted Answer

A)  Factor V
B)  Hemolysin
C)  Botulinum
D)  Tetanospasmin
E)   PeroxidaseF) A) and B)
G) B) and D)

Question 12

Prions can be destroyed by autoclaving.

Accepted Answer

A) True 
 B)False

Question 13

Pneumovax is a vaccine for prevention of disease caused by strains of Neisseria meningitidis.

Accepted Answer

A) True 
 B)False

Question 14

Up to 50% of persons who survived polio as children will suffer from post-polio syndrome later in life.

Accepted Answer

A) True 
 B)False

Question 15

The normal biota of the central nervous system includes ______.

Accepted Answer

A)  Neisseria meningitidis
B)  Herpes simplex I
C)  Herpes simplex II
D)  Streptococcus agalactiae
E)  The CNS has no normal biota.F) All of the above
G) B) and C)

Question 16

Which organism is a common cause of meningitis in AIDS patients and can be found in bird droppings?

Accepted Answer

A)  Listeria monocytogenes
B)  Neisseria meningitidis
C)  Cryptococcus neoformans
D)  Streptococcus agalactiae
E)  Haemophilus influenzaeF) A) and D)
G) A) and E)

Question 17

Infectious diseases of the nervous system include those that affect the meninges only (meningitis) , those that affect both the meninges and the brain (meningoencephalitis) , and those that affect the brain only (encephalitis) .From the list below, identify the disease and its classification that is mismatched.

Accepted Answer

A)  African sleeping sickness; encephalitis
B)  La Crosse Virus infection; encephalitis
C)  Naegleria fowleri infection; meningoencephalitis
D)  polio; meningitis
E)  Valley Fever; meningitisF) C) and D)
G) A) and B)

Question 18

Meningococci initially colonize the ______.

Accepted Answer

A)  Eustachian tube
B)  oral mucosa
C)  nasopharynx
D)  lacrimal ductsE) None of the above
F) All of the above

Question 19

In rabies, spasms of muscles for swallowing lead to a fear of water.

Accepted Answer

A) True 
 B)False

Question 20

Which type of cell has phagocytic capabilities in the central nervous system?

Accepted Answer

A)  Macrophages
B)  Neurons
C)  Astrocytes
D)  Schwann cells
E)  Microglial cellsF) C) and D)
G) B) and C)

Exam 19: Infectious Diseases Affecting the Nervous System

The expected outcome of an oxidase test performed to identify Neisseria menigitidis is

Correct Answer
verified

Encephalitis is most commonly caused by a ______.

Correct Answer
verified

Although many viruses can cause meningitis, the most common viral cause is ______.

Correct Answer
verified

What organism is the main reservoir and host for Toxoplasma gondii?

Correct Answer
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Which of the following is caused by Haemophilus influenzae?

Correct Answer
verified

Which type of cell has phagocytic capabilities in the central nervous system?

Correct Answer
verified

Meningococcemia is

Correct Answer
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Treatment of an animal bite for possible rabies includes

Correct Answer
verified

Prions can be destroyed by autoclaving.

Correct Answer
verified

What is the likelihood that a patient infected by West Nile virus will develop West Nile encephalitis?

Correct Answer
verified

Production of a neurotoxin that binds to target sites on spinal cord neurons responsible for inhibiting skeletal muscle contraction is a characteristic of ______.

Correct Answer
verified

Meningococci initially colonize the ______.

Correct Answer
verified

In rabies, spasms of muscles for swallowing lead to a fear of water.

Correct Answer
verified

Correct Answer
verified

Pneumovax is a vaccine for prevention of disease caused by strains of Neisseria meningitidis.

Correct Answer
verified

The normal biota of the central nervous system includes ______.

Correct Answer
verified

Which is the exotoxin of botulism?

Correct Answer
verified

Up to 50% of persons who survived polio as children will suffer from post-polio syndrome later in life.

Correct Answer
verified

Botox injections contain botulinum toxin.

Correct Answer
verified

Which organism is a common cause of meningitis in AIDS patients and can be found in bird droppings?

Correct Answer
verified

Exam 19: Infectious Diseases Affecting the Nervous System

The expected outcome of an oxidase test performed to identify Neisseria menigitidis is

Correct AnswerverifiedShow Answer

Encephalitis is most commonly caused by a ______.

Correct AnswerverifiedShow Answer

Although many viruses can cause meningitis, the most common viral cause is ______.

Correct AnswerverifiedShow Answer

What organism is the main reservoir and host for Toxoplasma gondii?

Correct AnswerverifiedShow Answer

Which of the following is caused by Haemophilus influenzae?

Correct AnswerverifiedShow Answer

Which type of cell has phagocytic capabilities in the central nervous system?

Correct AnswerverifiedShow Answer

Meningococcemia is

Correct AnswerverifiedShow Answer

Treatment of an animal bite for possible rabies includes

Correct AnswerverifiedShow Answer

Prions can be destroyed by autoclaving.

Correct AnswerverifiedShow Answer

What is the likelihood that a patient infected by West Nile virus will develop West Nile encephalitis?

Correct AnswerverifiedShow Answer

Production of a neurotoxin that binds to target sites on spinal cord neurons responsible for inhibiting skeletal muscle contraction is a characteristic of ______.

Correct AnswerverifiedShow Answer

Meningococci initially colonize the ______.

Correct AnswerverifiedShow Answer

In rabies, spasms of muscles for swallowing lead to a fear of water.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Pneumovax is a vaccine for prevention of disease caused by strains of Neisseria meningitidis.

Correct AnswerverifiedShow Answer

The normal biota of the central nervous system includes ______.

Correct AnswerverifiedShow Answer

Which is the exotoxin of botulism?

Correct AnswerverifiedShow Answer

Up to 50% of persons who survived polio as children will suffer from post-polio syndrome later in life.

Correct AnswerverifiedShow Answer

Botox injections contain botulinum toxin.

Correct AnswerverifiedShow Answer

Which organism is a common cause of meningitis in AIDS patients and can be found in bird droppings?

Correct AnswerverifiedShow Answer

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