Question 1

Influenza exhibits antigenic drift which involves _____.

Accepted Answer

A)  mutations in genes for hemagglutinin and neuraminidase
B)  gene reassortment due to multiple viral infections
C)  mutations in envelope phospholipids
D)  mutations in capsid proteinsE) A) and C)
F) A) and B)

Question 2

The mucociliary escalator:

Accepted Answer

A)  leads to aspirations of secretions that can cause pneumonia
B)  allows materials in the bronchi to be lifted to the pharynx
C)  is a ring of lymphoid tissue that surround the pharynx
D)  two of these choicesE) A) and D)
F) A) and C) B

Question 3

Treatment of choice for TB is _____.

Accepted Answer

A)  erythromycin and penicillin
B)  isoniazid and rifampin
C)  purified protein derivative
D)  cold fresh airE) B) and C)
F) All of the above

Question 4

Which is characterized by a pseudomembrane forming in the throat

Accepted Answer

A)  Diphtheria
B)  Pertussis
C)  Pharyngitis
D)  LaryngitisE) B) and C)
F) A) and B)

Question 5

The pathogen responsible for the disease whooping cough is _____.

Accepted Answer

A)  Rhinovirus
B)  Bordetella pertussis
C)  Corynebacterium
D)  HaemophilusE) B) and C)
F) A) and D)

Question 6

Primary atypical pneumonia is caused by:

Accepted Answer

A)  Streptococcus pneumoniae
B)  Mycobacterium pneumoniae
C)  Mycoplasma pneumoniae
D)  Klebsiella pneumoniaeE) A) and B)
F) A) and C)

Question 7

Pharyngitis is most often caused by:

Accepted Answer

A)  a virus
B)  Streptococcus pyogenes Group A
C)  Staphylococcus aureus
D)  CorynebacteriumE) B) and C)
F) A) and D)

Question 8

Which of the following statements about pneumonia is incorrect

Accepted Answer

A)  Helminths can cause pneumonia.
B)  Walking pneumonia is caused by Legionella pneumophilia.
C)  Chemicals and radiation can cause pneumonia.
D)  Walking pneumonia cannot be prevented by vaccination.E) A) and C)
F) None of the above

Question 9

Which fungal infection leads to an allergic asthmatic response

Accepted Answer

A)  Aspergillosis
B)  Blastomycosis
C)  Cryptococcosis
D)  HistoplasmosisE) B) and C)
F) A) and D)

Question 10

Prevention of pneumococcal pneumonia is difficult because:

Accepted Answer

A)  the vaccine only protects against 23 strains
B)  the vaccine covers all the strains,but boosters must be administered
C)  there is no vaccine
D)  the vaccine is only given to adultsE) B) and D)
F) B) and C) A

Question 11

Which of the following statements related to Rhinoviruses is incorrect

Accepted Answer

A)  Rhinoviruses grow best at 33 - 34ᵒC.
B)  Antibiotics are not useful in treating the common cold.
C)  There are at least 113 different Rhinoviruses.
D)  Rhinoviruses are very resistant to acid.E) B) and C)
F) A) and B)

Question 12

Sinusitis can be caused by:

Accepted Answer

A)  Staphylococcus aureus
B)  Streptococcus pneumoniae
C)  Haemophilus influenzae
D)  All of these choicesE) B) and D)
F) B) and C)

Question 13

Pontiac fever is a mild form of _____.

Accepted Answer

A)  tuberculosis
B)  pneumonia
C)  legionellosis
D)  diphtheriaE) A) and B)
F) A) and C)

Question 14

Which of the following statements about Corynebacterium diphtheriae is INCORRECT

Accepted Answer

A)  A prophage carries the exotoxin producing gene.
B)  An epidemic of diphtheria killed numerous people in the former Soviet Union.
C)  The bacteria are Gram-negative rods.
D)  The bacteria are in a palisade arrangement and have metachromatic granules.E) A) and B)
F) All of the above

Question 15

Acute epiglottitis is invariably caused by:

Accepted Answer

A)  a virus
B)  Streptococcus pyogenes
C)  Corynebacterium pseudoinfluenzae
D)  Haemophilus influenzae type BE) None of the above
F) A) and C)

Question 16

Tubercles:

Accepted Answer

A)  are white patches when seen on chest x-rays of TB patients
B)  undergo destruction giving a cheesy,caseous appearance
C)  contain live Mycobacterium
D)  all of these choicesE) B) and C)
F) None of the above

Question 17

Otitis media is caused most often by:

Accepted Answer

A)  Streptococcus pneumoniae
B)  Staphylococcus aureus
C)  Haemophilus influenzae
D)  Two of these choicesE) B) and C)
F) None of the above

Question 18

Which of the following statements about prevention of whooping cough is false

Accepted Answer

A)  DTP contains the acellular Pertussis vaccine (Recombinant DNA vaccine) .
B)  The whole cell vaccine caused a number of children to die or have brain damage.
C)  The acellular vaccine is safer.
D)  Babies are immunized early because they have no passive immunity from their moms.E) A) and B)
F) B) and C)

Question 19

The following statements about tuberculosis are all true except:

Accepted Answer

A)  Mycobacterium avium-intracellulare causes TB in AIDS patients
B)  the pathogens have long generation time (12-18 hours) 
C)  Mycobacterium tuberculosis is the most common causative agent
D)  the pathogens are very sensitive to drying and die quickly in the environmentE) A) and B)
F) B) and C) D

Question 20

The presence of Bordetella pertussis is confirmed by _____.

Accepted Answer

A)  beta colonies on a blood agar plate
B)  sensitivity to penicillin
C)  a reddish pigmented colony
D)  a fluorescent antibody stainE) A) and B)
F) C) and D)

Exam 22: Diseases of the Respiratory System

Influenza exhibits antigenic drift which involves _____.

Correct AnswerverifiedShow Answer

The mucociliary escalator:

Correct AnswerverifiedB

Treatment of choice for TB is _____.

Correct AnswerverifiedShow Answer

Which is characterized by a pseudomembrane forming in the throat

Correct AnswerverifiedShow Answer

The pathogen responsible for the disease whooping cough is _____.

Correct AnswerverifiedShow Answer

Primary atypical pneumonia is caused by:

Correct AnswerverifiedShow Answer

Pharyngitis is most often caused by:

Correct AnswerverifiedShow Answer

Which of the following statements about pneumonia is incorrect

Correct AnswerverifiedShow Answer

Which fungal infection leads to an allergic asthmatic response

Correct AnswerverifiedShow Answer

Prevention of pneumococcal pneumonia is difficult because:

Correct AnswerverifiedA

Which of the following statements related to Rhinoviruses is incorrect

Correct AnswerverifiedShow Answer

Sinusitis can be caused by:

Correct AnswerverifiedShow Answer

Pontiac fever is a mild form of _____.

Correct AnswerverifiedShow Answer

Which of the following statements about Corynebacterium diphtheriae is INCORRECT

Correct AnswerverifiedShow Answer

Acute epiglottitis is invariably caused by:

Correct AnswerverifiedShow Answer

Tubercles:

Correct AnswerverifiedShow Answer

Otitis media is caused most often by:

Correct AnswerverifiedShow Answer

Which of the following statements about prevention of whooping cough is false

Correct AnswerverifiedShow Answer

The following statements about tuberculosis are all true except:

Correct AnswerverifiedD

The presence of Bordetella pertussis is confirmed by _____.

Correct AnswerverifiedShow Answer

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A

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D

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