Influenza Flashcards
1
Q
influenza
A
- acute, viral infection of URT that is self-limiting
2
Q
types of influenza
A
type A
type B
type C
3
Q
which type is most prevalent + serious
A
type A
4
Q
incubation period
A
1-4 days
5
Q
patho
A
- viral entry targets upper resp cells
- 2 methods of injury
6
Q
2 methods of injury (patho)
A
- virus invades epith cells in URT and damages host DNA
2. immune response causes inflm –> damage
7
Q
cmplx
A
- can extend into LRT and cause bronchial & alveolar damage
- secondary bacterial infect
- acute bronchitis or pneumonia
8
Q
how to prevent infection from extenting into LRT
A
pt must rest and treat
9
Q
how does secondary bacterial infection occur
A
virus causes damage to the mucociliary blanket is not functioning adequately allowing pathogenic bacteria to cause an infection in the lungs
10
Q
what population more susceptible to a secondary bacterial infection
A
elderly and young children
11
Q
mnfts
A
- lethargy, myalgia
- cough
- fever
12
Q
why does lethargy & myalgia manifest
A
energy consumed for immune defense
13
Q
why does cough manifest
A
d/t irritation of the resp lining
14
Q
tx
A
- do not need to treat for the virus (self-limiting)
- bed rest
- symptomatic management
- limit spread
- antivirals (not generally used)
- immunization
15
Q
how to limit spread
A
- hand hygiene
- isolate
