Respiratory Tract Infections 1 Flashcards

1
Q

community acquired pneumonia is mainly caused by ______ and affects the ____ part of the lung

A

bacteria; lobar parts of the lung is affected

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2
Q

______ is the most common cause of the common cold

A

rhinovirus

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3
Q

most of the rhinovirus A,B, an C use ______ to attach to and enter the host cell

A

ICAM 1

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4
Q

what is a specific property of Rhinovirus that aids in their ability to evade local host defenses?

A

adhesion to mucosa

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5
Q

pneumonia with mixed flora is most likely to be :

A

aspiration pneumonia: aspiration of upper respiratory tract flora into the lung

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6
Q

is rhinovirus enveloped or non enveloped

A

non enveloped

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7
Q

what are the most common symptoms of the common cold?

A
  • nasal congestion
  • runny nose
  • scratchy throat
  • sneezing
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8
Q

what virus is NOT seen during the winter?

A

rhinovirus

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9
Q

_____ is a negatively charged RNA virus

A

RSV

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10
Q

infection of the respiratory epithelium will cause _______ which exacerbates conditions such as COPD and asthma

A

airway remodeling

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11
Q

what is a example of pathogen with a segmented RNA

A

influenza virus

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12
Q

what virus would you NOT see during the winter?

A

rhinovirus

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13
Q

what are the three most common causes of the common cold?

A
  • rhinovirus
  • coronavirus
  • adenovirus
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14
Q

_______virus is seen during the winter and spring

A

coronavirus, RSV and influenza virus

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15
Q

small icosahedral non developed virus that is positive stranded RNA

A

rhinovirus

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16
Q

linear ds DNA is see in which virus

A

adenovirus

17
Q

describe the seasonality of rhinovirus

A

spring, summer and fall (not winter)

18
Q

rhinovirus is labile at ____ pH

A

acidic

19
Q

______ can cause the exacerbation of COPD and asthma

A

rhinovirus

20
Q

____________ is a pathogen that causes common cold that is seen throughout the year

A

adenovirus

21
Q

because rhinovirus is enveloped/non enveloped, it makes it less susceptible to surface cleaners and disinfectants

A

non enveloped

22
Q

this pathogen resists destruction in the alveolar macrophages :

A

legionella pneumophila

23
Q

the second most common receptor that rhinoviruses use to attach and enter the host cell is ______

A

LDL (low density lipoprotein receptor)

24
Q

name three positively charged RNA viruses

A
  • rhinovirus
  • picornavirus
  • coronoavirus
25
Q

hospital acquired (nosocomial) pneumonia is caused mainly by ____ and affects the _____ part of the lung

A

viral; bronchial;

26
Q

rhinovirus changes its antigenic properties via _____

A

antigenic drift

27
Q

what pathogen has a property that interferes with the cilia of the respiratory tract?

A

bordetalla pertussis