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What type of respiratory disease is bronchiolitis
lower respiratory
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common viral infection of young children 2-12 mnths
responsibile for noscomial epidemics
involves bronchi and bronchiolies, NOT alveoli
bronchiolitis
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What 2 viruses can cause bronchiolitis
- Respiratory syncytial virus
- rhinovirus
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What is the virus family that causes bronchiolitis
myxovirus
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Is the myxovirus RNA or DNA? descibe virus
- RNA, single strand
- pleomorphic
- envelope(like flu), but no spikes
- syncytia(clumping of cells)
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How is bronchiolitis transmitted
- droplets
- fomites
- predisposing factors(asthma, smoke)
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What is the incubation period and onset of bronchiolitis
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Describe the pathogenisis of bronchiolitis
- 1.virus inhaled
- 2.Infects respiratory tract
- 3.cells die and block bronchioles
- 4.edema, increased secreations & bronchospasms
- 5.airways obsructed
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what are the signs of bronchiolitis
- runny nose
- cough
- wheezing
- atelectasis
- dyspena
- rales
- nasal flaring
- maliase
- fever(low grade)
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what diagnostic test are used for bronchiolitis
- serum antibody titers
- nasal & pharyngeal secreation cultures
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What is the treatment of bronchiolitis
- support and monitor
- monitor blood gases
- maintain fluids
- riboviran(antiviral)
- RSV Immunoglobulin serum
- RSV monocolonial antibody
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What is the prognosis of bronchiolitis
- without complication 7-10 day recovery
- frequent reinfection due to weak and short lived immunity
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