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15 Cards in this Set

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Definition of rhinopharyngitis (common cold)
acute communicable viral dz wiht nasal stuffiness, sneezing, coryza, and throat irritation and minimal/no fever
Etiologic agents for rhinopharyngitis
rhinovirus (most common)
coronavirus
parainfluenza
RSV
influenza
adenovirus
Avg # of colds per year in adults? children?
incubation period?
3-8
adults have .5 # fo colds as children
1-5 days
transmission of common cold?
Direct contact (inoculation of virus through contaminated hands/surfaces)
aerosol transmission
where is the greatest [] of virus?
nasal secretions
pathophysiology of common cold?
after inoculation, epithelial cells infected
cytopathology varies depending on agent
local spread --> damage respiratory mucosa
cytokines play role in pathogenesis
sx d/t cell damage and irritation
What are the clinical signs of common cold?
submucosal edema
polys later in course
mucociliary transport markedly affected
What helps to control infection in common cold?
local interferon production
AB in serum and secretions
Dx of common cold
clinical dx
throat and viral cultures not required
tx of common cold
symptomatic tx
relief of nasal obstruction impt in children
antihistamines + NSAIDS
Definition of sore throat an tonsillopharyngitis?
inflammatory illness of mucous membranes of throat
dx of tonsillopharyngitis
evidence of inflammation
what is difference between nasopharyngitis and tonsillopharyngitis ?
naso: mainly viral
tonsillo: viral and bacterial, no nasal involvement
Etiologic agents in tonsillopharyngitis?
Adenovirus
influenza
parainfluenza
enterovirus
EBV
cold viruses (rhino and corona)
Most impt bacterial agent in tonsillopharyngitis?
group A beta-hemolytic strep (strep pyogenes)