Hypersensitivity Pneumonitis (pathology) Flashcards
1
Q
What are other names of hypersensitivity pneumonitis?
A
Bird fancier’s lung
Farmer’s lung
2
Q
Where on the lungs does hypersensitivity pneumonitis affect
A
Upper zone disease – inhaled antigens precipitate in centriacinar region
3
Q
What causes hypersensitivity pneumonitis
A
- Thermophilic actinomycetes (mouldy hay)
- bird/animal proteins- faeces, bloom
- fungi (Aspergillus)
- chemicals
4
Q
Symptoms of acute hypersensitivity pneumonitis
A
- fever
- dry cough
- myalgia
- chills 4-9 hours after Ag exposure
- crackles
- tachypnoea
- wheeze
- precipitating Ab
5
Q
Symptoms of acute hypersensitivity pneumonitis
A
- insidious
- malaise
- SOB
- cough
- crackles/wheeze
- low grade illness
6
Q
Management of hypersensitivity pneumonitis
A
Low gas transfer
Restrictive spirometry
