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The most common causative agent of otitis media is ________.


A) Aspergillus fumigatus
B) Haemophilus influenzae
C) Candida albicans
D) Corynebacterium
E) Streptococcus pneumoniae

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

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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 C)
G) A) and D)

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Antibiotic treatment for otitis media is standard procedure today.

A) True
B) False

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A 45-year-old female presents to the emergency department. She reports the onset of a sore throat, cough and rhinorrhea about five days ago. She is now experiencing weakness in her arms and difficulty breathing. She is evaluated in the emergency room and admitted to the intensive care unit. In the provider's initial assessment, the patient is noted to have gross inflammation of her pharynx and tonsils, with grayish-white patches in the pharynx. A throat swab and additional specimens are sent for microbial analysis. The patient is placed in isolation. -Examination of the throat swab specimen reveals distinct gram-positive club-shaped bacilli. The laboratory technician immediately contacts the medical team and begins the process of submitting specimens for PCR testing to the CDC.The suspected pathogen is ________.


A) influenza A
B) Pneumocystis (carinii) jiroveci
C) Corynebacterium diphtheriae
D) Bacillus anthracis

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

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An RN in a primary care office is caring for a 10-year-old patient experiencing fever, chills, nasal congestion, and a sore throat. The patient's mother indicates that the child had been ill for the past two days, experiencing a poor appetite and sleepiness. The nurse swabs the patient's throat for rapid microbial analysis, suspecting the patient's symptoms are due to a common pathogen. -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) All of the above
F) C) and D)

Correct Answer

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An RN in a primary care office is caring for a 10-year-old patient experiencing fever, chills, nasal congestion, and a sore throat. The patient's mother indicates that the child had been ill for the past two days, experiencing a poor appetite and sleepiness. The nurse swabs the patient's throat for rapid microbial analysis, suspecting the patient's symptoms are due to a common pathogen. -The laboratory findings report that the child is infected with influenza B virus. Which of the following medications would the nurse expect to be ordered for this child?   


A) Penicillin
B) No medication
C) Acyclovir
D) Oseltamivir

E) B) and D)
F) None of the above

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Normal biota of the lower respiratory tract include ________.


A) Corynebacterium
B) Candida albicans
C) Haemophilus influenzae
D) Staphylococcus aureus
E) None of the choices are correct.

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

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What is the function of normal biota of the respiratory tract?


A) Compete with pathogens for resources and space
B) Microbial antagonism
C) Provide antibodies
D) Both compete with pathogens for resources and space and microbial antagonism are correct.
E) Compete with pathogens for resources and space,microbial antagonism,and provide antibodies are all correct.

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

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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) C) and E)
G) A) and C)

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Which is not correct about Mycobacterium species?


A) All species are human pathogens.
B) Cell walls have waxy lipids.
C) They are acid fast.
D) Usually have a slow growth rate.
E) They are long,slender rods.

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

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A 45-year-old female presents to the emergency department. She reports the onset of a sore throat, cough and rhinorrhea about five days ago. She is now experiencing weakness in her arms and difficulty breathing. She is evaluated in the emergency room and admitted to the intensive care unit. In the provider's initial assessment, the patient is noted to have gross inflammation of her pharynx and tonsils, with grayish-white patches in the pharynx. A throat swab and additional specimens are sent for microbial analysis. The patient is placed in isolation. -The patient's clinical condition deteriorates rapidly.Even without laboratory confirmation of the pathogen,the provider orders which course of treatment?  


A) Administration of rimantadine to treat the patient's suspected influenza
B) Administration of trimethoprim-sulfamethoxazole to treat the patient's suspected PCP
C) Administration of ciprofloxacin to treat the patient's suspected pulmonary anthrax
D) Administration of antitoxin to treat the patient's suspected diphtheria

E) A) and D)
F) None of the above

Correct Answer

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Influenza vaccines include all the following except ________.


A) an inactivated dead virus
B) the incorporation of usually three different strains
C) an attenuated nasal drops vaccine
D) the ability to provide lifelong immunity
E) an overall effectiveness of 70%−90%

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

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The bright red rash and fever of scarlet fever are due to ________.


A) enterotoxins
B) hemolysins
C) toxic shock syndrome toxin
D) exfoliative toxin
E) erythrogenic toxin

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

Correct Answer

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A 45-year-old female presents to the emergency department. She reports the onset of a sore throat, cough and rhinorrhea about five days ago. She is now experiencing weakness in her arms and difficulty breathing. She is evaluated in the emergency room and admitted to the intensive care unit. In the provider's initial assessment, the patient is noted to have gross inflammation of her pharynx and tonsils, with grayish-white patches in the pharynx. A throat swab and additional specimens are sent for microbial analysis. The patient is placed in isolation. -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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The major reservoir for the hantavirus is the deer mouse.

A) True
B) False

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The most common type of virus leading to rhinitis is ________.


A) coronavirus
B) adenovirus
C) rhinovirus
D) herpes simplex virus
E) retrovirus

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

Correct Answer

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Rheumatic fever is caused by ________.


A) a primary streptococcal infection with Streptococcus pyogenes
B) a combination of infection with Streptococcus pyogenes and the rheumatic fever virus
C) a secondary streptococcal infection with a different type of streptococcus
D) an immunological cross-reaction in which anti-streptococcal antibodies target the heart
E) both a primary viral infection and a secondary streptococcal infection

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

Correct Answer

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Normal biota of the upper respiratory tract include ________.


A) Aspergillis
B) Candida albicans
C) Haemophilus influenzae
D) Staphylococcus aureus
E) All of the choices are correct.

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

Correct Answer

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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) C) and E)
G) A) and E)

Correct Answer

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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) B) and D)
G) A) and B)

Correct Answer

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