Question 1

The primary transmission route for acquiring agents of the common cold is by contact with hands and fomites contaminated with the nasal discharges of an infected person.

Accepted Answer

A) True 
 B)False

Question 2

The most common causative agent in fungal sinusitis is _______.

Accepted Answer

A)   Aspergillus fumigatus
B)   Haemophilus influenzae
C)   Candida albicans
D)   Corynebacterium diphtheriae
E)   Streptococcus pneumoniaeF) B) and D)
G) A) and E)

Question 3

Your dog has flu caused by an H3N8 strain.Assume that you breathe in this strain,after you have already come in contact with an H1N1 strain.Both viruses go into the cells of your upper respiratory tract.During the viral replication cycle inside of your epithelial cells,genetic information for hemagglutinin antigen and for neuraminidase antigen are recombined.Your cells end up producing a new variant---H3N1.Predict what might happen as a result of this set of events.

Accepted Answer

A)   Only people who have never had flu before will get sick from the new H3N1 variant.
B)   This is not a problem because the human immune system can respond quickly to any new antigens never seen before.
C)   This novel virus will spread through the human population without much resistance.
D)   Since this new virus has antigens from a dog strain, the new strain will not be able to infect human cells.E) A) and B)
F) A) and C)

Question 4

Of the six Category A diseases listed by the U.S.Public Health Service,which affect/s the respiratory tract?

Accepted Answer

A)   Botulism
B)   Pneumonic plague
C)   Tularemia
D)   Smallpox
E)   Both pneumonic plague and tularemia are correct.F) A) and C)
G) All of the above

Question 5

Drug-resistant strains of Streptococcus pneumoniae are now treated with ______.

Accepted Answer

A)   penicillin V
B)   eryrthromycin
C)   tetracyline
D)   vancomycin
E)   KetekF) B) and D)
G) B) and E)

Question 6

Cold viruses are transmitted by _______.

Accepted Answer

A)   droplet contact
B)   indirect contact
C)   direct contact
D)   All of the choices are correct.E) B) and D)
F) All of the above

Question 7

The major virulence factor of Corynebacterium diphtheriae that causes serious systemic effects is its ______.

Accepted Answer

A)   capsule
B)   metachromatic granules
C)   exotoxin
D)   endospores
E)   endotoxinF) All of the above
G) A) and D)

Question 8

The difference between MDR-TB and XDR-TB is that

Accepted Answer

A)   XDR-TB is predominantly seen in the USA whereas MDR-TB is common in India and China.
B)   MDR-TB exhibits resistance to isoniazid and rifampin whereas XDR-TB strains are resistant to bedaquiline.
C)   MDR-TB strains have a higher mortality rate than XDR-TB strains.
D)   MDR-TB strains are classified as having resistance to two antibiotics, whereas XDR-TB strains are classified when they are resistant to four antibiotics.E) C) and D)
F) A) and B)

Question 9

Legionella pneumophila

Accepted Answer

A)   requires special lab growth media.
B)   often lives intracellularly in amoebas.
C)   causes fever, cough, and diarrhea.
D)   always causes a severe pneumonia.E) B) and C)
F) A) and C)

Question 10

Normal biota of the respiratory tract

Accepted Answer

A)   are localized to the nasopharynx only.
B)   can cause disease in immunocompromised patients.
C)   do not include yeasts or viruses.
D)   only include Staphylococcus aureus.
E)   are only comprised of staphylococcal species.F) B) and E)
G) C) and D)

Question 11

In addition to antimicrobials,patients with diphtheria are treated with ______.

Accepted Answer

A)   antitoxin
B)   tracheostomy
C)   heart medication
D)   bronchoscopy
E)   All of the choices are correct.F) All of the above
G) B) and D)

Question 12

Severe acute respiratory syndrome (SARS)

Accepted Answer

A)   causes high fever, pneumonia, and respiratory distress.
B)   began with an initial outbreak in the United States and then spread to Canada and China.
C)   is caused by the respiratory syncytial virus.
D)   is classified as an opportunistic infection.E) A) and D)
F) All of the above

Question 13

Which of the following is not true of whooping cough?

Accepted Answer

A)   Secondary infections can occur during the convalescent phase.
B)   It is caused by a small, aerobic, gram-negative rod.
C)   Incubation period is 3-21 days.
D)   Cold-like symptoms are common for the paroxysmal stage.
E)   An uncontrollable cough occurs during the paroxysmal stage.F) A) and C)
G) B) and C)

Question 14

The major reservoir for the hantavirus is the deer mouse.

Accepted Answer

A) True 
 B)False

Question 15

Diphtheria is considered to be an upper respiratory tract infection.However,it can have a very high mortality rate if not caught early and treated.Predict why this is so.

Accepted Answer

A)   It makes a toxin that can be carried in blood and produce organ damage, particularly the heart.
B)   It successfully hides from the immune system of the patient.
C)   The patient cannot eat or drink and so basically starves to death.
D)   The bacterium moves from the throat to the brain, causing strokes to occur.E) A) and D)
F) C) and D)

Exam 21: Infectious Diseases Affecting the Respiratory System

The most common causative agent in fungal sinusitis is _______.

Correct Answer
verified

In addition to antimicrobials,patients with diphtheria are treated with ______.

Correct Answer
verified

Normal biota of the respiratory tract

Correct Answer
verified

The primary transmission route for acquiring agents of the common cold is by contact with hands and fomites contaminated with the nasal discharges of an infected person.

Correct Answer
verified

The difference between MDR-TB and XDR-TB is that

Correct Answer
verified

Which of the following is not true of whooping cough?

Correct Answer
verified

Drug-resistant strains of Streptococcus pneumoniae are now treated with ______.

Correct Answer
verified

The major reservoir for the hantavirus is the deer mouse.

Correct Answer
verified

Legionella pneumophila

Correct Answer
verified

Cold viruses are transmitted by _______.

Correct Answer
verified

Correct Answer
verified

Diphtheria is considered to be an upper respiratory tract infection.However,it can have a very high mortality rate if not caught early and treated.Predict why this is so.

Correct Answer
verified

The major virulence factor of Corynebacterium diphtheriae that causes serious systemic effects is its ______.

Correct Answer
verified

Severe acute respiratory syndrome (SARS)

Correct Answer
verified

Of the six Category A diseases listed by the U.S.Public Health Service,which affect/s the respiratory tract?

Correct Answer
verified

Exam 21: Infectious Diseases Affecting the Respiratory System

The most common causative agent in fungal sinusitis is _______.

Correct AnswerverifiedShow Answer

In addition to antimicrobials,patients with diphtheria are treated with ______.

Correct AnswerverifiedShow Answer

Normal biota of the respiratory tract

Correct AnswerverifiedShow Answer

The primary transmission route for acquiring agents of the common cold is by contact with hands and fomites contaminated with the nasal discharges of an infected person.

Correct AnswerverifiedShow Answer

The difference between MDR-TB and XDR-TB is that

Correct AnswerverifiedShow Answer

Which of the following is not true of whooping cough?

Correct AnswerverifiedShow Answer

Drug-resistant strains of Streptococcus pneumoniae are now treated with ______.

Correct AnswerverifiedShow Answer

The major reservoir for the hantavirus is the deer mouse.

Correct AnswerverifiedShow Answer

Legionella pneumophila

Correct AnswerverifiedShow Answer

Cold viruses are transmitted by _______.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Diphtheria is considered to be an upper respiratory tract infection.However,it can have a very high mortality rate if not caught early and treated.Predict why this is so.

Correct AnswerverifiedShow Answer

The major virulence factor of Corynebacterium diphtheriae that causes serious systemic effects is its ______.

Correct AnswerverifiedShow Answer

Severe acute respiratory syndrome (SARS)

Correct AnswerverifiedShow Answer

Of the six Category A diseases listed by the U.S.Public Health Service,which affect/s the respiratory tract?

Correct AnswerverifiedShow Answer

Correct Answer
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