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Which of the following causes a noncommunicable pulmonary infection that resembles tuberculosis?


A) Mycobacterium avium complex (MAC)
B) Mycobacterium kansasii
C) Mycobacterium scrofulaceum
D) Mycobacterium fortuitum complex
E) Mycobacterium marinum

F) A) and B)
G) A) and C)

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Virulence factors of Streptococcus pyogenes include ________.


A) polysaccharides on the cell wall
B) lipoteichoic acid
C) M proteins
D) hyaluronic acid capsule
E) All of the choices are correct.

F) A) and B)
G) None of the above

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Hantavirus has all of the following characteristics except ________.


A) a reservoir is human carriers
B) it is a zoonotic infection
C) the symptoms are abrupt fever, lung edema, respiratory distress, and hypotension
D) it is transmitted by aerosol transmission from rodent excreta
E) the first U.S. outbreak occurred in 1993 in the Southwest

F) B) and D)
G) B) and C)

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The major reservoir for the hantavirus is the deer mouse.

A) True
B) False

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Infection travels to the middle ear by way of the ________.


A) auditory canal
B) sinuses
C) nasal cavity
D) eustachian (auditory) tubes
E) subarachnoid space

F) A) and D)
G) D) and E)

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Formation of a pseudomembrane in the back of the throat is seen in ________.


A) diphtheria
B) pharyngitis
C) tuberculosis
D) pertussis
E) SARS

F) B) and E)
G) D) and E)

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Extrapulmonary TB can involve the ________.


A) kidneys
B) long bones
C) spine
D) brain
E) All of the choices are correct.

F) B) and E)
G) All of the above

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Assess the following statements and determine which one is incorrect regarding antigenic shift.


A) The influenza virus genome mutates over time changing the amino acid sequence of the envelope glycoproteins. Each encounter with a new version of the virus requires activation of naive lymphocytes rather than memory cells, which is the reason we receive a new vaccination each year.
B) The influenza genome contains 10 genes distributed on 8 separate RNA strands. These strands can be exchanged between different viruses.
C) Some virus strains infect birds and swine, some infect swine and humans. If the strain that infects swine and humans exchanges strands with a bird flu strain while in a swine host cell, that virus can go on to infect a human who will have no recognition for the bird protein.
D) If a new strain of virus emerged from an antigenic shift event, a vaccine different to the annual flu vaccine would have to be administered because the proteins coded for by the new strain would be different to those made as a result of antigenic drift.

E) B) and C)
F) A) and D)

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A paroxysmal cough is associated with Legionnaires' disease.

A) True
B) False

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Respiratory syncytial virus ________.


A) causes serious disease in infants 6 months old or younger
B) is highly contagious
C) is transmitted through droplet contact and fomite contamination
D) cannot be prevented by vaccination at this time
E) All of the choices are correct.

F) C) and E)
G) A) and D)

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What features of the respiratory system protect us from infection?


A) Nasal hairs
B) Cilia
C) Mucus
D) Macrophages
E) All of the choices are correct.

F) B) and C)
G) A) and E)

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Which antibody is concentrated in the respiratory tract?


A) IgA
B) IgE
C) IgG
D) IgM
E) All of the choices are correct.

F) C) and D)
G) A) and D)

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Which of the following is not true of whooping cough?


A) Secondary infections can occur during the convalescent phase
B) Caused by a small gram-positive rod
C) Incubation period is 3-21 days
D) Coldlike symptoms are common for the paroxysmal stage
E) An uncontrollable cough occurs during the paroxysmal stage

F) None of the above
G) A) and B)

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Which of the following is not part of the upper respiratory tract?


A) Mouth
B) Nasal cavity
C) Trachea
D) Pharynx
E) Larynx

F) A) and C)
G) All of the above

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Suspecting the patient is infected with influenza, the nurse prepares to obtain which of the following specimens for rapid testing at an external laboratory?


A) Blood
B) Cerebrospinal fluid
C) Nasal swab
D) Skin scraping

E) A) and B)
F) All of the above

Correct Answer

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The laboratory findings are discussed with the medical team. Culturing on specialized media will be required for definitive identification of the microbe. Which medium will the technicians use to culture this suspected pathogen?


A) Tellurite medium
B) Mannitol salt agar
C) Eosin methylene blue agar
D) None of the choices are correct. This pathogen must be propagated using tissue culture.

E) A) and B)
F) A) and C)

Correct Answer

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Which of the following is not part of the lower respiratory system?


A) Alveoli
B) Bronchi
C) Bronchioles
D) Trachea
E) Sinuses

F) C) and D)
G) None of the above

Correct Answer

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Antibiotic treatment for otitis media is standard procedure today.

A) True
B) False

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Characteristics of Histoplasma capsulatum include ________.


A) it grows in moist soil; rich in nitrogen from bird and bat droppings
B) it is a yeast with a capsule
C) it is commonly found in the southwestern United States
D) it always results in severe infections
E) its transmission occurs through water droplets

F) A) and B)
G) D) and E)

Correct Answer

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Cold viruses are transmitted by ________.


A) droplet contact and indirect contact
B) endogenous
C) direct contact
D) None of the choices are correct.
E) All of the choices are correct.

F) B) and C)
G) C) and D)

Correct Answer

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